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Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 30.0, + "y": 0.69 + }, + { + "x": 50.005, + "y": 0.39 + }, + { + "x": 76.0115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Catchment hydrology (land-cover pressure)", + "easiMethod": "catchment-land-cover-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<30%" + }, + { + "rating": "Fair", + "label": "30-50%" + }, + { + "rating": "Poor", + "label": ">50%" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "schueler-1994", + "text": "Schueler 1994, The importance of imperviousness" + }, + { + "key": "allan-2004", + "text": "Allan 2004, Landscapes and riverscapes: the influence of land use on stream ecosystems" + }, + { + "key": "wang-1997", + "text": "Wang et al. 1997, Influences of watershed land use on habitat quality and biotic integrity in Wisconsin streams" + }, + { + "key": "king-2011", + "text": "King et al. 2011, Stream community thresholds at exceptionally low levels of catchment urbanization" + } + ], + "limitations": [ + "The worse input governs because hydrologic alteration through one pathway is not offset by low pressure in the other.", + "Agricultural bands are national screening tiers, not ecological criteria.", + "A result computed from one input is labeled partial.", + "Sensitive macroinvertebrate taxa decline well below the 10 percent impervious Good boundary (community thresholds near 0.5 to 2 percent), so a Good rating is not a no-effect finding (King et al. 2011)." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "surface-water-storage", + "functionName": "Surface water storage", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-pctwet2019ws", + "metricName": "Wetland cover of the watershed", + "inputType": "proportion", + "sourceCitation": "Adopted EASI screening method (provisional), Wetland extent", + "xLabel": "Wetland cover of the watershed (%)", + "howToMeasure": "Wetland cover of the watershed (%) is scored on EASI's national screening method, Wetland extent, adopted because no other source supports this function here. Good >5%, Fair 1-5%, Poor <1%.", + "methodContext": "Watershed wetland cover (NLCD 2019 woody plus herbaceous wetland, percent of the watershed) from the StreamCat lookup engine or the STAF site engine; DEEP fills it from the desktop analysis and the user may correct it.", + "curve": { + "layerName": "Adopted EASI screening method (provisional), Wetland extent", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.315468 + }, + { + "x": 0.995, + "y": 0.39 + }, + { + "x": 5.0, + "y": 0.69 + }, + { + "x": 9.1385, + "y": 1.0 + } + ] + }, + "metricRole": "last_resort", + "curveCaveats": [ + "An EASI screening method is a provisional national judgment that rates the quantity the same way in every region. It is not an estimate of this ecoregion's reference condition, and its confidence is capped.", + "Rated on EASI's national wetland-extent bands, which rate a watershed with no mapped wetland Poor. Least-disturbed watersheds of this ecoregion carry little or no wetland, so the rating cannot tell natural absence from loss: read a Fair or Poor rating with that in mind.", + "Natural wetland abundance varies substantially among regions." + ], + "confidenceLabel": "EASI screening method (provisional)", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Wetland extent", + "easiMethod": "watershed-wetland-extent", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": ">5%" + }, + { + "rating": "Fair", + "label": "1-5%" + }, + { + "rating": "Poor", + "label": "<1%" + } + ], + "citations": [ + { + "key": "streamcat", + "text": "EPA StreamCat Metrics and Definitions" + }, + { + "key": "cbp-wetland-review", + "text": "Chesapeake Bay Program 2016, Wetland Expert Panel literature review (Appendix B)" + } + ], + "limitations": [ + "Natural wetland abundance varies substantially among regions." + ] + }, + "referenceSupport": { + "status": "published", + "level": null, + "levelLabel": "", + "regionCode": "70", + "regionName": "Western Allegheny Plateau", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 0, + "nComparable": 0, + "nUsable": 0, + "nLocal": 0, + "nHuc12": 0, + "disposition": "exploratory", + "family": "hydrology", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Scored on EASI's national screening method for this quantity, adopted because no reference pool, national donor, model or published benchmark supported a curve for this function in this ecoregion. No source supports Surface water storage in this ecoregion: pctwet2019ws (The local reference: 2 usable stations, below the floor of 10; This ecoregion under the regional screen: 4 usable stations, below the floor of 10; The Level II pool (8.4): The curve on this pool would be the engine's fallback ramp: the pool's lower quartile sits at or below zero on a scale that cannot go negative (curve status degenerate_q25), and a fallback curve is refused under methodology 0.16 (owner decision D13); The Level I pool (8): The curve on this pool would be the engine's fallback ramp: the pool's lower quartile sits at or below zero on a scale that cannot go negative (curve status degenerate_q25), and a fallback curve is refused under methodology 0.16 (owner decision D13); The NARS-9 pool (SAP): The curve on this pool would be the engine's fallback ramp: the pool's lower quartile sits at or below zero on a scale that cannot go negative (curve status degenerate_q25), and a fallback curve is refused under methodology 0.16 (owner decision D13)). Completed by EASI's national screening method, Wetland extent, adopted under REF-17 (owner decision D19).", + "basis": "easi-screening-method", + "basisLabel": "Adopted from EASI's national screening method (provisional)", + "basisStatement": "Scored on EASI's national screening method for this quantity, adopted because no reference pool, national donor, model or published benchmark supported a curve for this function in this ecoregion.", + "basisLimit": "An EASI screening method is a provisional national judgment that rates the quantity the same way in every region. It is not an estimate of this ecoregion's reference condition, and its confidence is capped." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 0.0, + "q50": 0.0, + "q75": 0.0475 + }, + "basis": "easi-screening-method", + "basisLabel": "Adopted from EASI's national screening method (provisional)", + "basisStatement": "Scored on EASI's national screening method for this quantity, adopted because no reference pool, national donor, model or published benchmark supported a curve for this function in this ecoregion.", + "basisLimit": "An EASI screening method is a provisional national judgment that rates the quantity the same way in every region. It is not an estimate of this ecoregion's reference condition, and its confidence is capped.", + "adoptedMethod": { + "rule": "REF-17", + "ownerDecision": "D19 (2026-09-28)", + "curveSet": null, + "easiMethod": "watershed-wetland-extent", + "easiMetricId": "surface-water-storage-percent-wetlands-in-watershed", + "title": "Wetland extent", + "basisClass": "provisional STAF screening judgment", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": ">5%" + }, + { + "rating": "Fair", + "label": "1-5%" + }, + { + "rating": "Poor", + "label": "<1%" + } + ], + "citations": [ + { + "key": "streamcat", + "text": "EPA StreamCat Metrics and Definitions" + }, + { + "key": "cbp-wetland-review", + "text": "Chesapeake Bay Program 2016, Wetland Expert Panel literature review (Appendix B)" + } + ], + "limitations": [ + "Natural wetland abundance varies substantially among regions." + ], + "requiredInput": "Watershed wetland cover (NLCD 2019 woody plus herbaceous wetland, percent of the watershed) from the StreamCat lookup engine or the STAF site engine; DEEP fills it from the desktop analysis and the user may correct it.", + "followUp": "Provisional: a regional method for this function in this ecoregion is an open follow-up in StreamCurves." + }, + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "reach-inflow", + "functionName": "Reach inflow", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-rddensws", + "metricName": "Road density", + "inputType": "continuous", + "sourceCitation": "EASI fixed criteria, Road-density proxy for concentrated inflow pressure", + "xLabel": "Road density (km/sq km)", + "howToMeasure": "Road density (km/sq km) is scored on the same fixed criteria EASI uses in every region. Good <1 km/km², Fair 1-<3 km/km², Poor ≥3 km/km².", + "methodContext": "Road length per square kilometer of watershed. DEEP computes it for the delineated watershed. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Road-density proxy for concentrated inflow pressure", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 1.0, + "y": 0.69 + }, + { + "x": 3.0, + "y": 0.39 + }, + { + "x": 5.6, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Road-density proxy for concentrated inflow pressure", + "easiMethod": "road-density-inflow-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<1 km/km²" + }, + { + "rating": "Fair", + "label": "1-<3 km/km²" + }, + { + "rating": "Poor", + "label": "≥3 km/km²" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "usfs-wcf", + "text": "USDA Forest Service 2011, Watershed Condition Classification Technical Guide (FS-978)" + } + ], + "limitations": [ + "Road density does not count actual outfalls or establish whether runoff is treated.", + "The 1 km/km² breakpoint is a screening judgment.", + "USFS watershed-condition guidance classes road density more strictly (good under 1, impaired over 2.4 miles per square mile, about 0.62 and 1.49 km/km²), derived from salmonid watersheds. EASI keeps the NRSA-anchored national screen and discloses the stricter alternative." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "streamflow-regime", + "functionName": "Streamflow regime", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-bfiws", + "metricName": "Base flow index", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Base flow index (%)", + "howToMeasure": "Base-flow index (% of streamflow from baseflow); a higher baseflow share indicates a more stable, groundwater-supported flow regime. Moderate confidence: hydrogeology sets the baseline, so a naturally flashy till catchment reads low without being degraded (see the natural-context criterion below). Scored because flow alteration and withdrawal also move it.", + "methodContext": "Base flow index of the watershed, the percent of streamflow that comes from base flow (USGS base flow index grid). DEEP reads it from EPA StreamCat for the reach. Nothing is measured in the field.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 11.571428571428571, + "y": 0.3 + }, + { + "x": 27.0, + "y": 0.7 + }, + { + "x": 44.4073, + "y": 1.0 + }, + { + "x": 53.11095, + "y": 1.0 + } + ] + }, + "referenceN": 61, + "sampleDisposition": "adequate", + "metricRole": "landscape_expectation", + "curveCaveats": [ + "The reference expectation likely varies with ElevationClass (cross-validated improvement 20%, resample recurrence 86%); the curve is unstratified pending a larger reference pool, so sites at either end of that gradient may read as departures that are natural.", + "Base-flow index is set largely by hydrogeology: a naturally flashy till catchment reads low on this curve without being degraded.", + "The reference stations for this curve were borrowed from Level II ecoregion 8.4 (Ozark/Ouachita-Appalachian Forests) because this ecoregion has too few least-disturbed stations of its own. 61 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on hydraulic conductivity, precipitation, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.44 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.06, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.44 of evaluation regions; two thirds required; net optimism +0.06, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 14.9926, + 56.066 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "8.4", + "regionName": "Ozark/Ouachita-Appalachian Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 104, + "nComparable": 61, + "nUsable": 61, + "nLocal": 4, + "nHuc12": 57, + "disposition": "adequate", + "family": "hydrology", + "covariates": [ + "hydrlcondws", + "precip8110ws", + "lith_group" + ], + "selfCoverage": 0.917, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "61 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on hydraulic conductivity, precipitation, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.44 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.06, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.4444, + "net_opt": 0.0641, + "n_cells": 18, + "c1_share": 0.0 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 28.420849999999998, + "q50": 30.0377, + "q75": 32.0977 + }, + "discrimination": { + "aucRefVsPressure": 0.496, + "nRef": 61, + "nPressure": 211, + "medianRefIndex": 0.913, + "medianPressureIndex": 0.874, + "aucRvsIm": 0.349, + "nR": 11, + "nIm": 31, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.4444, + "net_opt": 0.0641, + "n_cells": 18, + "c1_share": 0.0 + }, + "transferNote": "61 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on hydraulic conductivity, precipitation, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.44 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.06, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydrology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-dorws", + "metricName": "Degree of regulation", + "inputType": "continuous", + "sourceCitation": "EASI fixed criteria, Flow alteration (degree of regulation)", + "xLabel": "Degree of regulation (%)", + "howToMeasure": "Degree of regulation (%) is scored on the same fixed criteria EASI uses in every region. Good <2%, Fair 2-15%, Poor >15%.", + "methodContext": "Degree of regulation, the normal storage of upstream dams as a percent of mean annual runoff. DEEP reads both from EPA StreamCat for the reach. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Flow alteration (degree of regulation)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 2.0, + "y": 0.69 + }, + { + "x": 15.005, + "y": 0.39 + }, + { + "x": 31.9115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Flow alteration (degree of regulation)", + "easiMethod": "degree-of-regulation", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "<2%" + }, + { + "rating": "Fair", + "label": "2-15%" + }, + { + "rating": "Poor", + "label": ">15%" + } + ], + "citations": [ + { + "key": "streamcat", + "text": "EPA StreamCat Metrics and Definitions" + }, + { + "key": "lehner-2011", + "text": "Lehner et al. 2011, High-resolution mapping of the world's reservoirs and dams" + }, + { + "key": "grill-2019", + "text": "Grill et al. 2019, Mapping the world's free-flowing rivers" + } + ], + "limitations": [ + "Degree of regulation does not describe operating rules, diversions, seasonality, or dam location on the network.", + "Missing or non-positive runoff is not converted to zero and leaves the metric unscored." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "low-flow-baseflow-dynamics", + "functionName": "Low flow and baseflow dynamics", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-phab-bfwd-rat", + "metricName": "Bankfull width:depth ratio", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull width:depth ratio", + "howToMeasure": "Bankfull width-to-depth ratio; both over-widened (very high) and incised (very low) degrade condition. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the bankfull width and the bankfull height above the water surface, and the thalweg depth. The value is the mean bankfull width divided by the mean bankfull depth (bankfull height plus thalweg depth).", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 6.661259698867799, + "y": 0.7 + }, + { + "x": 11.576397895812988, + "y": 1.0 + }, + { + "x": 25.61964988708496, + "y": 1.0 + }, + { + "x": 30.53478808403015, + "y": 0.7 + }, + { + "x": 39.662901878356934, + "y": 0.3 + }, + { + "x": 53.706153869628906, + "y": 0.0 + } + ] + }, + "referenceN": 51, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference expectation likely varies with DrainageAreaClass (cross-validated improvement 25%, resample recurrence 93%); the curve is unstratified pending a larger reference pool, so sites at either end of that gradient may read as departures that are natural.", + "The reference stations for this curve were borrowed from Level II ecoregion 8.4 (Ozark/Ouachita-Appalachian Forests) because this ecoregion has too few least-disturbed stations of its own. 51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.67 of evaluation regions; two thirds required; net optimism +0.16, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 5.009241104125977, + 45.430450439453125 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "8.4", + "regionName": "Ozark/Ouachita-Appalachian Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 104, + "nComparable": 51, + "nUsable": 51, + "nLocal": 4, + "nHuc12": 47, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.917, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6667, + "net_opt": 0.16, + "n_cells": 18, + "c1_share": 0.2222 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 10.979074954986572, + "q50": 12.214230060577393, + "q75": 18.12623882293701 + }, + "discrimination": { + "aucRefVsPressure": 0.522, + "nRef": 51, + "nPressure": 211, + "medianRefIndex": 0.972, + "medianPressureIndex": 0.954, + "aucRvsIm": 0.704, + "nR": 11, + "nIm": 31, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6667, + "net_opt": 0.16, + "n_cells": 18, + "c1_share": 0.2222 + }, + "transferNote": "51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydraulics", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-rp100-cm", + "metricName": "Residual pool depth", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Residual pool depth (cm)", + "howToMeasure": "Residual pool depth per 100 m; deeper residual pools generally better habitat.", + "methodContext": "Measure the thalweg depth at 10 or 15 evenly spaced stations between each pair of transects (100 or 150 along the reach). The value is the mean residual pool depth in centimeters, computed from that depth profile and the reach slope with the NRSA physical habitat calculations.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 3.628504616873605, + "y": 0.3 + }, + { + "x": 8.466510772705078, + "y": 0.7 + }, + { + "x": 36.029916763305664, + "y": 1.0 + }, + { + "x": 49.81161975860596, + "y": 1.0 + } + ] + }, + "referenceN": 51, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 8.4 (Ozark/Ouachita-Appalachian Forests) because this ecoregion has too few least-disturbed stations of its own. 51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 1.5381007194519043, + 132.48927307128906 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "8.4", + "regionName": "Ozark/Ouachita-Appalachian Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 104, + "nComparable": 51, + "nUsable": 51, + "nLocal": 4, + "nHuc12": 47, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.917, + "supportedLevel": "l3", + "transferRisk": "moderate", + "transferNote": "51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 4.224795460700989, + "q50": 10.620296955108643, + "q75": 38.13525390625 + }, + "stratifier": { + "key": "NhdSlopeClass", + "variable": "nhd_slope", + "units": "m/m", + "source": "NHDPlus V2 flowline slope", + "breaks": [ + 0.005, + 0.02 + ], + "right": false, + "classes": [ + { + "key": "lt_0.5", + "label": "Low gradient (under 0.5 percent)", + "hasCurve": true, + "n": 26 + }, + { + "key": "0.5_to_2", + "label": "Moderate gradient (0.5 to 2 percent)", + "hasCurve": true, + "n": 20 + }, + { + "key": "ge_2", + "label": "Steep (2 percent and above)", + "hasCurve": false, + "n": 5 + } + ], + "registryVersion": 1, + "status": "accept" + }, + "discrimination": { + "aucRefVsPressure": 0.468, + "nRef": 51, + "nPressure": 210, + "medianRefIndex": 0.813, + "medianPressureIndex": 0.832, + "aucRvsIm": 0.595, + "nR": 11, + "nIm": 31, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "curveLayers": [ + { + "stratum": "", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 3.628504616873605, + "y": 0.3 + }, + { + "x": 8.466510772705078, + "y": 0.7 + }, + { + "x": 36.029916763305664, + "y": 1.0 + }, + { + "x": 49.81161975860596, + "y": 1.0 + } + ] + }, + { + "stratum": "lt_0.5", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 12.12608528137207, + "y": 0.3 + }, + { + "x": 28.294198989868164, + "y": 0.7 + }, + { + "x": 55.02053642272949, + "y": 1.0 + }, + { + "x": 68.38370513916016, + "y": 1.0 + } + ] + }, + { + "stratum": "0.5_to_2", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 2.072400748729706, + "y": 0.3 + }, + { + "x": 4.83560174703598, + "y": 0.7 + }, + { + "x": 16.310120582580566, + "y": 1.0 + }, + { + "x": 22.04738000035286, + "y": 1.0 + } + ] + } + ], + "activeStratum": "", + "discipline": "Hydraulics", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "high-flow-dynamics", + "functionName": "High flow dynamics", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-pctimp2019ws", + "metricName": "Impervious surface", + "inputType": "proportion", + "sourceCitation": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "xLabel": "Impervious surface (%)", + "howToMeasure": "Impervious surface (%) is scored on the same fixed criteria EASI uses in every region. Good <10%, Fair 10-25%, Poor >25%.", + "methodContext": "Percent of the watershed in impervious surface. DEEP computes it for the delineated watershed. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 10.0, + "y": 0.69 + }, + { + "x": 25.005, + "y": 0.39 + }, + { + "x": 44.5115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Catchment hydrology (land-cover pressure)", + "easiMethod": "catchment-land-cover-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<10%" + }, + { + "rating": "Fair", + "label": "10-25%" + }, + { + "rating": "Poor", + "label": ">25%" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "schueler-1994", + "text": "Schueler 1994, The importance of imperviousness" + }, + { + "key": "allan-2004", + "text": "Allan 2004, Landscapes and riverscapes: the influence of land use on stream ecosystems" + }, + { + "key": "wang-1997", + "text": "Wang et al. 1997, Influences of watershed land use on habitat quality and biotic integrity in Wisconsin streams" + }, + { + "key": "king-2011", + "text": "King et al. 2011, Stream community thresholds at exceptionally low levels of catchment urbanization" + } + ], + "limitations": [ + "The worse input governs because hydrologic alteration through one pathway is not offset by low pressure in the other.", + "Agricultural bands are national screening tiers, not ecological criteria.", + "A result computed from one input is labeled partial.", + "Sensitive macroinvertebrate taxa decline well below the 10 percent impervious Good boundary (community thresholds near 0.5 to 2 percent), so a Good rating is not a no-effect finding (King et al. 2011)." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydraulics", + "assignmentOrigin": "additional-function" + } + ] + }, + { + "functionId": "floodplain-connectivity", + "functionName": "Floodplain connectivity", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-phab-bfwd-rat", + "metricName": "Bankfull width:depth ratio", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull width:depth ratio", + "howToMeasure": "Bankfull width-to-depth ratio; both over-widened (very high) and incised (very low) degrade condition. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the bankfull width and the bankfull height above the water surface, and the thalweg depth. The value is the mean bankfull width divided by the mean bankfull depth (bankfull height plus thalweg depth).", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 6.661259698867799, + "y": 0.7 + }, + { + "x": 11.576397895812988, + "y": 1.0 + }, + { + "x": 25.61964988708496, + "y": 1.0 + }, + { + "x": 30.53478808403015, + "y": 0.7 + }, + { + "x": 39.662901878356934, + "y": 0.3 + }, + { + "x": 53.706153869628906, + "y": 0.0 + } + ] + }, + "referenceN": 51, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference expectation likely varies with DrainageAreaClass (cross-validated improvement 25%, resample recurrence 93%); the curve is unstratified pending a larger reference pool, so sites at either end of that gradient may read as departures that are natural.", + "The reference stations for this curve were borrowed from Level II ecoregion 8.4 (Ozark/Ouachita-Appalachian Forests) because this ecoregion has too few least-disturbed stations of its own. 51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.67 of evaluation regions; two thirds required; net optimism +0.16, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 5.009241104125977, + 45.430450439453125 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "8.4", + "regionName": "Ozark/Ouachita-Appalachian Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 104, + "nComparable": 51, + "nUsable": 51, + "nLocal": 4, + "nHuc12": 47, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.917, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6667, + "net_opt": 0.16, + "n_cells": 18, + "c1_share": 0.2222 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 10.979074954986572, + "q50": 12.214230060577393, + "q75": 18.12623882293701 + }, + "discrimination": { + "aucRefVsPressure": 0.522, + "nRef": 51, + "nPressure": 211, + "medianRefIndex": 0.972, + "medianPressureIndex": 0.954, + "aucRvsIm": 0.704, + "nR": 11, + "nIm": 31, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6667, + "net_opt": 0.16, + "n_cells": 18, + "c1_share": 0.2222 + }, + "transferNote": "51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydraulics", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xbkf-h", + "metricName": "Bankfull height above channel", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull height above channel (m)", + "howToMeasure": "Mean bankfull height; both incision (very high banks) and over-widening (very low) depart from reference. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the height of the bankfull elevation above the present water surface in meters, with a rod at the water's edge and a clinometer held level at bankfull. The value is the mean of the 11 heights.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.16393181309103966, + "y": 0.7 + }, + { + "x": 0.3263636380434036, + "y": 1.0 + }, + { + "x": 0.7904545664787292, + "y": 1.0 + }, + { + "x": 0.9528863914310932, + "y": 0.7 + }, + { + "x": 1.2545454949140549, + "y": 0.3 + }, + { + "x": 1.7186364233493805, + "y": 0.0 + } + ] + }, + "referenceN": 51, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 8.4 (Ozark/Ouachita-Appalachian Forests) because this ecoregion has too few least-disturbed stations of its own. 51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.04, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.56 of evaluation regions; two thirds required); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.0, + 1.5909091234207153 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "8.4", + "regionName": "Ozark/Ouachita-Appalachian Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 104, + "nComparable": 51, + "nUsable": 51, + "nLocal": 4, + "nHuc12": 47, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.917, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.04, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.0354, + "n_cells": 18, + "c1_share": 0.3889 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 0.21913636475801468, + "q50": 0.26363635808229446, + "q75": 0.557727262377739 + }, + "discrimination": { + "aucRefVsPressure": 0.515, + "nRef": 51, + "nPressure": 211, + "medianRefIndex": 0.963, + "medianPressureIndex": 0.985, + "aucRvsIm": 0.406, + "nR": 11, + "nIm": 31, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.0354, + "n_cells": 18, + "c1_share": 0.3889 + }, + "transferNote": "51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.04, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydraulics", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "hyporheic-connectivity", + "functionName": "Hyporheic connectivity", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-phab-pct-safn", + "metricName": "Sand + fines", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Sand + fines (%)", + "howToMeasure": "Percent sand and fines; higher indicates fine-sediment loading (worse).", + "methodContext": "Record the size class of the particle at five evenly spaced points across each of the 11 transects and the 10 cross-sections midway between them (105 particles). The value is the percent of particles that are sand or finer.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 0.9523809552192688, + "y": 1.0 + }, + { + "x": 21.428571701049805, + "y": 0.7 + }, + { + "x": 52.14285781979561, + "y": 0.3 + }, + { + "x": 72.61904856562614, + "y": 0.0 + } + ] + }, + "referenceN": 51, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 8.4 (Ozark/Ouachita-Appalachian Forests) because this ecoregion has too few least-disturbed stations of its own. 51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 0.0, + 65.71428680419922 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "8.4", + "regionName": "Ozark/Ouachita-Appalachian Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 104, + "nComparable": 51, + "nUsable": 51, + "nLocal": 4, + "nHuc12": 47, + "disposition": "adequate", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.917, + "supportedLevel": "l2", + "transferRisk": "low", + "transferNote": "51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 23.809524059295654, + "q50": 36.66666603088379, + "q75": 44.523810386657715 + }, + "discrimination": { + "aucRefVsPressure": 0.716, + "nRef": 51, + "nPressure": 211, + "medianRefIndex": 0.908, + "medianPressureIndex": 0.669, + "aucRvsIm": 0.76, + "nR": 11, + "nIm": 31, + "verdict": "discriminates" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Hydraulics", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xembed", + "metricName": "Embeddedness", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Embeddedness (%)", + "howToMeasure": "Percent embeddedness; higher means interstitial spaces filled with fines (worse).", + "methodContext": "At five evenly spaced points across each of the 11 transects, estimate how much of the particle under the point is buried in sand and finer sediment, in percent. Record the 55 estimates. The value is their mean.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 11.09948444366455, + "y": 1.0 + }, + { + "x": 24.909090042114258, + "y": 1.0 + }, + { + "x": 52.52830123901367, + "y": 0.7 + }, + { + "x": 93.9571180343628, + "y": 0.3 + }, + { + "x": 100.0, + "y": 0.0 + } + ] + }, + "referenceN": 37, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 8.4 (Ozark/Ouachita-Appalachian Forests) because this ecoregion has too few least-disturbed stations of its own. 37 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 5.090909004211426, + 79.7272720336914 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "8.4", + "regionName": "Ozark/Ouachita-Appalachian Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 104, + "nComparable": 51, + "nUsable": 37, + "nLocal": 4, + "nHuc12": 36, + "disposition": "adequate", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.917, + "supportedLevel": "l2", + "transferRisk": "low", + "transferNote": "37 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 50.6045446395874, + "q50": 62.09090995788574, + "q75": 64.99545288085938 + }, + "discrimination": { + "aucRefVsPressure": 0.685, + "nRef": 37, + "nPressure": 139, + "medianRefIndex": 0.814, + "medianPressureIndex": 0.695, + "aucRvsIm": 0.848, + "nR": 9, + "nIm": 22, + "verdict": "discriminates" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Hydraulics", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "channel-evolution", + "functionName": "Channel evolution", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-bfwd-rat", + "metricName": "Bankfull width:depth ratio", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull width:depth ratio", + "howToMeasure": "Bankfull width-to-depth ratio; both over-widened (very high) and incised (very low) degrade condition. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the bankfull width and the bankfull height above the water surface, and the thalweg depth. The value is the mean bankfull width divided by the mean bankfull depth (bankfull height plus thalweg depth).", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 6.661259698867799, + "y": 0.7 + }, + { + "x": 11.576397895812988, + "y": 1.0 + }, + { + "x": 25.61964988708496, + "y": 1.0 + }, + { + "x": 30.53478808403015, + "y": 0.7 + }, + { + "x": 39.662901878356934, + "y": 0.3 + }, + { + "x": 53.706153869628906, + "y": 0.0 + } + ] + }, + "referenceN": 51, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference expectation likely varies with DrainageAreaClass (cross-validated improvement 25%, resample recurrence 93%); the curve is unstratified pending a larger reference pool, so sites at either end of that gradient may read as departures that are natural.", + "The reference stations for this curve were borrowed from Level II ecoregion 8.4 (Ozark/Ouachita-Appalachian Forests) because this ecoregion has too few least-disturbed stations of its own. 51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.67 of evaluation regions; two thirds required; net optimism +0.16, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 5.009241104125977, + 45.430450439453125 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "8.4", + "regionName": "Ozark/Ouachita-Appalachian Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 104, + "nComparable": 51, + "nUsable": 51, + "nLocal": 4, + "nHuc12": 47, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.917, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6667, + "net_opt": 0.16, + "n_cells": 18, + "c1_share": 0.2222 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 10.979074954986572, + "q50": 12.214230060577393, + "q75": 18.12623882293701 + }, + "discrimination": { + "aucRefVsPressure": 0.522, + "nRef": 51, + "nPressure": 211, + "medianRefIndex": 0.972, + "medianPressureIndex": 0.954, + "aucRvsIm": 0.704, + "nR": 11, + "nIm": 31, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6667, + "net_opt": 0.16, + "n_cells": 18, + "c1_share": 0.2222 + }, + "transferNote": "51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xbkf-h", + "metricName": "Bankfull height above channel", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull height above channel (m)", + "howToMeasure": "Mean bankfull height; both incision (very high banks) and over-widening (very low) depart from reference. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the height of the bankfull elevation above the present water surface in meters, with a rod at the water's edge and a clinometer held level at bankfull. The value is the mean of the 11 heights.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.16393181309103966, + "y": 0.7 + }, + { + "x": 0.3263636380434036, + "y": 1.0 + }, + { + "x": 0.7904545664787292, + "y": 1.0 + }, + { + "x": 0.9528863914310932, + "y": 0.7 + }, + { + "x": 1.2545454949140549, + "y": 0.3 + }, + { + "x": 1.7186364233493805, + "y": 0.0 + } + ] + }, + "referenceN": 51, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 8.4 (Ozark/Ouachita-Appalachian Forests) because this ecoregion has too few least-disturbed stations of its own. 51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.04, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.56 of evaluation regions; two thirds required); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.0, + 1.5909091234207153 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "8.4", + "regionName": "Ozark/Ouachita-Appalachian Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 104, + "nComparable": 51, + "nUsable": 51, + "nLocal": 4, + "nHuc12": 47, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.917, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.04, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.0354, + "n_cells": 18, + "c1_share": 0.3889 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 0.21913636475801468, + "q50": 0.26363635808229446, + "q75": 0.557727262377739 + }, + "discrimination": { + "aucRefVsPressure": 0.515, + "nRef": 51, + "nPressure": 211, + "medianRefIndex": 0.963, + "medianPressureIndex": 0.985, + "aucRvsIm": 0.406, + "nR": 11, + "nIm": 31, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.0354, + "n_cells": 18, + "c1_share": 0.3889 + }, + "transferNote": "51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.04, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Geomorphology", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "channel-floodplain-dynamics", + "functionName": "Channel and floodplain dynamics", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-sinu", + "metricName": "Sinuosity", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Sinuosity", + "howToMeasure": "Channel sinuosity; higher generally indicates a more natural planform.", + "methodContext": "Take a compass bearing (backsight) and the distance between each pair of neighboring transects. The value is the channel length along those segments divided by the straight line distance between the ends of the reach.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 1.0, + "y": 0.0 + }, + { + "x": 1.0447091162204742, + "y": 0.7 + }, + { + "x": 1.1640028953552246, + "y": 1.0 + }, + { + "x": 1.2236497849225998, + "y": 1.0 + } + ] + }, + "referenceN": 36, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 8.4 (Ozark/Ouachita-Appalachian Forests) because this ecoregion has too few least-disturbed stations of its own. 36 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 1.0076836347579956, + 1.544221043586731 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "8.4", + "regionName": "Ozark/Ouachita-Appalachian Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 104, + "nComparable": 51, + "nUsable": 36, + "nLocal": 4, + "nHuc12": 35, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.917, + "supportedLevel": "l3", + "transferRisk": "moderate", + "transferNote": "36 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 1.0499007105827332, + "q50": 1.1310014128684998, + "q75": 1.2288253903388977 + }, + "discrimination": { + "aucRefVsPressure": 0.463, + "nRef": 36, + "nPressure": 138, + "medianRefIndex": 0.854, + "medianPressureIndex": 0.874, + "aucRvsIm": 0.323, + "nR": 9, + "nIm": 21, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xbka", + "metricName": "Bank angle", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bank angle (degrees)", + "howToMeasure": "Mean bank angle; very steep banks indicate incision and very flat banks an over-widened, aggrading channel, so departure from the reference core in either direction departs from reference. Direction resolved at the Northeastern Highlands review gate (owner decision, 2026-08-21), consistent with the width-to-depth and bankfull-height treatment. low_tail flat added at the adversarial review gate (owner decision, 2026-08-21): a regraded or naturally gentle bank holds at the Functioning edge instead of being penalized, because the flat tail is not symmetric evidence of degradation and the framework's stated use is restoration evaluation.", + "methodContext": "At the left and the right bank of each transect, lay a pole about one meter long against the bank and read its angle from horizontal with a clinometer, in degrees. The value is the mean of the 22 readings.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.7 + }, + { + "x": 16.502793288230897, + "y": 0.7 + }, + { + "x": 22.602272510528564, + "y": 1.0 + }, + { + "x": 40.02935600280762, + "y": 1.0 + }, + { + "x": 46.128835225105284, + "y": 0.7 + }, + { + "x": 57.45643949508667, + "y": 0.3 + }, + { + "x": 74.88352298736572, + "y": 0.0 + } + ] + }, + "referenceN": 60, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level I ecoregion 8 (Eastern Temperate Forests) because this ecoregion has too few least-disturbed stations of its own. 60 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level I 8 (Eastern Temperate Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level II, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 12.636363983154297, + 73.63636016845703 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l1", + "level": "l1", + "levelLabel": "Level I", + "regionCode": "8", + "regionName": "Eastern Temperate Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 359, + "nComparable": 77, + "nUsable": 60, + "nLocal": 4, + "nHuc12": 59, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.917, + "supportedLevel": "l2", + "transferRisk": "moderate", + "transferNote": "60 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level I 8 (Eastern Temperate Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level II, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 24.954545974731445, + "q50": 27.477272987365723, + "q75": 30.625 + }, + "discrimination": { + "aucRefVsPressure": 0.483, + "nRef": 60, + "nPressure": 742, + "medianRefIndex": 0.987, + "medianPressureIndex": 1.0, + "aucRvsIm": 0.436, + "nR": 25, + "nIm": 137, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "sediment-continuity", + "functionName": "Sediment continuity", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-lrbs-use", + "metricName": "Relative bed stability", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Relative bed stability (log)", + "howToMeasure": "Log relative bed stability; departure from the reference core in EITHER direction departs from reference (negative excess fines, positive an armored, sediment-starved bed, the classic below-impoundment failure). The pilot's rising direction scored armored beds 1.0 and left Sediment continuity blind to its textbook failure mode. Two-sided form is an owner decision at the adversarial review gate, 2026-08-21.", + "methodContext": "Computed, not read in the field. It is the base 10 logarithm of the ratio of the geometric mean particle diameter to the largest diameter the bankfull flow can move, from the particle count, reach slope, bankfull depth, wood tally and residual pools, with the NRSA physical habitat calculations.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": -3.738181233406067, + "y": 0.0 + }, + { + "x": -2.2486587166786194, + "y": 0.3 + }, + { + "x": -1.2804690808057786, + "y": 0.7 + }, + { + "x": -0.7591361999511719, + "y": 1.0 + }, + { + "x": 0.7303863167762756, + "y": 1.0 + }, + { + "x": 1.2517191976308824, + "y": 0.7 + }, + { + "x": 2.219908833503723, + "y": 0.3 + }, + { + "x": 3.7094313502311707, + "y": 0.0 + } + ] + }, + "referenceN": 77, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level I ecoregion 8 (Eastern Temperate Forests) because this ecoregion has too few least-disturbed stations of its own. 77 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level I 8 (Eastern Temperate Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is high and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + -2.758829355239868, + 4.382752895355225 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l1", + "level": "l1", + "levelLabel": "Level I", + "regionCode": "8", + "regionName": "Eastern Temperate Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 359, + "nComparable": 77, + "nUsable": 77, + "nLocal": 4, + "nHuc12": 73, + "disposition": "adequate", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.917, + "supportedLevel": "l3", + "transferRisk": "high", + "transferNote": "77 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level I 8 (Eastern Temperate Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is high and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": -0.5134811550378799, + "q50": -0.24447233229875565, + "q75": 0.0665259063243866 + }, + "stratifier": { + "key": "NhdDrainageAreaClass", + "variable": "drainage_area_sqkm", + "units": "km2", + "source": "NHDPlus V2 total drainage area", + "breaks": [ + 10.0, + 100.0 + ], + "right": true, + "classes": [ + { + "key": "le_10", + "label": "Headwater (10 km2 and under)", + "hasCurve": true, + "n": 18 + }, + { + "key": "10_to_100", + "label": "Small stream (10 to 100 km2)", + "hasCurve": true, + "n": 24 + }, + { + "key": "gt_100", + "label": "Large stream (over 100 km2)", + "hasCurve": true, + "n": 35 + } + ], + "registryVersion": 1, + "status": "accept" + }, + "discrimination": { + "aucRefVsPressure": 0.587, + "nRef": 77, + "nPressure": 1098, + "medianRefIndex": 0.955, + "medianPressureIndex": 0.859, + "aucRvsIm": 0.62, + "nR": 36, + "nIm": 197, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "curveLayers": [ + { + "stratum": "", + "points": [ + { + "x": -3.738181233406067, + "y": 0.0 + }, + { + "x": -2.2486587166786194, + "y": 0.3 + }, + { + "x": -1.2804690808057786, + "y": 0.7 + }, + { + "x": -0.7591361999511719, + "y": 1.0 + }, + { + "x": 0.7303863167762756, + "y": 1.0 + }, + { + "x": 1.2517191976308824, + "y": 0.7 + }, + { + "x": 2.219908833503723, + "y": 0.3 + }, + { + "x": 3.7094313502311707, + "y": 0.0 + } + ] + }, + { + "stratum": "le_10", + "points": [ + { + "x": -3.6858043155662017, + "y": 0.0 + }, + { + "x": -2.433934960841725, + "y": 0.3 + }, + { + "x": -1.6202198802708154, + "y": 0.7 + }, + { + "x": -1.1820656061172485, + "y": 1.0 + }, + { + "x": 0.06980374860722804, + "y": 1.0 + }, + { + "x": 0.5079580227607948, + "y": 0.7 + }, + { + "x": 1.3216731033317046, + "y": 0.3 + }, + { + "x": 2.573542458056181, + "y": 0.0 + } + ] + }, + { + "stratum": "10_to_100", + "points": [ + { + "x": -2.537161038722843, + "y": 0.0 + }, + { + "x": -1.6918090141844004, + "y": 0.3 + }, + { + "x": -1.1423301982344127, + "y": 0.7 + }, + { + "x": -0.846456989645958, + "y": 1.0 + }, + { + "x": -0.0011049651075154543, + "y": 1.0 + }, + { + "x": 0.2947682434809394, + "y": 0.7 + }, + { + "x": 0.844247059430927, + "y": 0.3 + }, + { + "x": 1.6895990839693695, + "y": 0.0 + } + ] + }, + { + "stratum": "gt_100", + "points": [ + { + "x": -1.4436044581234455, + "y": 0.0 + }, + { + "x": -0.6486338898539543, + "y": 0.3 + }, + { + "x": -0.131903020478785, + "y": 0.7 + }, + { + "x": 0.14633667841553688, + "y": 1.0 + }, + { + "x": 0.9413072466850281, + "y": 1.0 + }, + { + "x": 1.21954694557935, + "y": 0.7 + }, + { + "x": 1.7362778149545193, + "y": 0.3 + }, + { + "x": 2.5312483832240105, + "y": 0.0 + } + ] + } + ], + "activeStratum": "", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-pct-safn", + "metricName": "Sand + fines", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Sand + fines (%)", + "howToMeasure": "Percent sand and fines; higher indicates fine-sediment loading (worse).", + "methodContext": "Record the size class of the particle at five evenly spaced points across each of the 11 transects and the 10 cross-sections midway between them (105 particles). The value is the percent of particles that are sand or finer.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 0.9523809552192688, + "y": 1.0 + }, + { + "x": 21.428571701049805, + "y": 0.7 + }, + { + "x": 52.14285781979561, + "y": 0.3 + }, + { + "x": 72.61904856562614, + "y": 0.0 + } + ] + }, + "referenceN": 51, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 8.4 (Ozark/Ouachita-Appalachian Forests) because this ecoregion has too few least-disturbed stations of its own. 51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 0.0, + 65.71428680419922 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "8.4", + "regionName": "Ozark/Ouachita-Appalachian Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 104, + "nComparable": 51, + "nUsable": 51, + "nLocal": 4, + "nHuc12": 47, + "disposition": "adequate", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.917, + "supportedLevel": "l2", + "transferRisk": "low", + "transferNote": "51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 23.809524059295654, + "q50": 36.66666603088379, + "q75": 44.523810386657715 + }, + "discrimination": { + "aucRefVsPressure": 0.716, + "nRef": 51, + "nPressure": 211, + "medianRefIndex": 0.908, + "medianPressureIndex": 0.669, + "aucRvsIm": 0.76, + "nR": 11, + "nIm": 31, + "verdict": "discriminates" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "bed-composition-bedform-dynamics", + "functionName": "Bed composition and bedform dynamics", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-xembed", + "metricName": "Embeddedness", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Embeddedness (%)", + "howToMeasure": "Percent embeddedness; higher means interstitial spaces filled with fines (worse).", + "methodContext": "At five evenly spaced points across each of the 11 transects, estimate how much of the particle under the point is buried in sand and finer sediment, in percent. Record the 55 estimates. The value is their mean.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 11.09948444366455, + "y": 1.0 + }, + { + "x": 24.909090042114258, + "y": 1.0 + }, + { + "x": 52.52830123901367, + "y": 0.7 + }, + { + "x": 93.9571180343628, + "y": 0.3 + }, + { + "x": 100.0, + "y": 0.0 + } + ] + }, + "referenceN": 37, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 8.4 (Ozark/Ouachita-Appalachian Forests) because this ecoregion has too few least-disturbed stations of its own. 37 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 5.090909004211426, + 79.7272720336914 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "8.4", + "regionName": "Ozark/Ouachita-Appalachian Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 104, + "nComparable": 51, + "nUsable": 37, + "nLocal": 4, + "nHuc12": 36, + "disposition": "adequate", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.917, + "supportedLevel": "l2", + "transferRisk": "low", + "transferNote": "37 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 50.6045446395874, + "q50": 62.09090995788574, + "q75": 64.99545288085938 + }, + "discrimination": { + "aucRefVsPressure": 0.685, + "nRef": 37, + "nPressure": 139, + "medianRefIndex": 0.814, + "medianPressureIndex": 0.695, + "aucRvsIm": 0.848, + "nR": 9, + "nIm": 22, + "verdict": "discriminates" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-lwdeqvolm100", + "metricName": "Large wood volume", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Large wood volume (m3/100m)", + "howToMeasure": "Large woody debris volume per 100 m; higher is better.", + "methodContext": "Between each pair of transects, tally every piece of wood at least 10 cm in diameter and 1.5 m long in or above the bankfull channel, by length and diameter class. The value is the wood volume per 100 m of channel, computed from the tally classes.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.2507321515253612, + "y": 0.3 + }, + { + "x": 0.5850416868925095, + "y": 0.7 + }, + { + "x": 18.273332595825195, + "y": 1.0 + }, + { + "x": 27.11747805029154, + "y": 1.0 + } + ] + }, + "referenceN": 71, + "curveCaveats": [ + "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + ], + "confidenceLabel": "Low", + "confidenceTotal": 53.5, + "criteriaBasis": "reference", + "referenceSupport": { + "status": "national", + "level": null, + "levelLabel": "", + "regionCode": "national", + "regionName": "National least-disturbed pool", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 768, + "nComparable": 71, + "nUsable": 71, + "nLocal": 0, + "nHuc12": 70, + "disposition": "adequate", + "family": "riparian", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "moderate", + "transferNote": "71 least-disturbed stations from the national pool, the three nearest to each of this ecoregion's streams on the natural setting that governs this metric family, none inside this ecoregion.", + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 7, + "q25": 0.37133336067199707, + "q50": 0.6440384387969971, + "q75": 4.723916530609131 + }, + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it.", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "light-thermal-regime", + "functionName": "Light & thermal regime", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-chem-chla", + "metricName": "Chlorophyll a", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Chlorophyll a (ug/L)", + "howToMeasure": "Chlorophyll a; higher indicates algal enrichment/eutrophication (worse).", + "methodContext": "Chlorophyll a of the water column in micrograms per liter, from a 2 L grab sample taken at mid-channel at the X-site in an amber bottle, filtered and analyzed in a laboratory.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 0.41999998688697815, + "y": 1.0 + }, + { + "x": 1.649999976158142, + "y": 0.7 + }, + { + "x": 3.494999960064888, + "y": 0.3 + }, + { + "x": 4.724999949336052, + "y": 0.0 + } + ] + }, + "referenceN": 29, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 8.4 (Ozark/Ouachita-Appalachian Forests) because this ecoregion has too few least-disturbed stations of its own. 29 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.53 of 17 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.53 of evaluation regions; two thirds required; net optimism +0.17, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.10000000149011612, + 9.680000305175781 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "8.4", + "regionName": "Ozark/Ouachita-Appalachian Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 104, + "nComparable": 29, + "nUsable": 29, + "nLocal": 4, + "nHuc12": 27, + "disposition": "adequate", + "family": "water_chemistry", + "covariates": [ + "bfiws", + "runoffws", + "lith_group" + ], + "selfCoverage": 0.917, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "29 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.53 of 17 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5294, + "net_opt": 0.1681, + "n_cells": 17, + "c1_share": 0.2941 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 0.552499994635582, + "q50": 1.001499980688095, + "q75": 1.9324999153614044 + }, + "discrimination": { + "aucRefVsPressure": 0.659, + "nRef": 29, + "nPressure": 211, + "medianRefIndex": 0.91, + "medianPressureIndex": 0.737, + "aucRvsIm": 0.641, + "nR": 11, + "nIm": 31, + "verdict": "discriminates" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5294, + "net_opt": 0.1681, + "n_cells": 17, + "c1_share": 0.2941 + }, + "transferNote": "29 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.53 of 17 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xcdenmid", + "metricName": "Canopy density, mid-channel", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Canopy density, mid-channel (%)", + "howToMeasure": "Mid-channel canopy density; higher shading generally better for thermal/light regime.", + "methodContext": "At mid-channel on each transect, read a convex spherical densiometer facing upstream, downstream, left and right, counting the covered points of 17. The value is the mean of the 44 readings as a percent.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 24.866309574672155, + "y": 0.3 + }, + { + "x": 58.02138900756836, + "y": 0.7 + }, + { + "x": 93.5828857421875, + "y": 1.0 + }, + { + "x": 100.0, + "y": 1.0 + } + ] + }, + "referenceN": 69, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 8.4 (Ozark/Ouachita-Appalachian Forests) because this ecoregion has too few least-disturbed stations of its own. 69 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.56 of evaluation regions; two thirds required; net optimism +0.17, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 3.07486629486084, + 100.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "8.4", + "regionName": "Ozark/Ouachita-Appalachian Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 104, + "nComparable": 87, + "nUsable": 69, + "nLocal": 4, + "nHuc12": 65, + "disposition": "adequate", + "family": "riparian", + "covariates": [ + "drainage_area_sqkm", + "precip8110ws" + ], + "selfCoverage": 1.0, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "69 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.1676, + "n_cells": 18, + "c1_share": 0.3889 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 63.97392749786377, + "q50": 72.9946517944336, + "q75": 83.22192764282227 + }, + "stratifier": { + "key": "NhdDrainageAreaClass", + "variable": "drainage_area_sqkm", + "units": "km2", + "source": "NHDPlus V2 total drainage area", + "breaks": [ + 10.0, + 100.0 + ], + "right": true, + "classes": [ + { + "key": "le_10", + "label": "Headwater (10 km2 and under)", + "hasCurve": true, + "n": 31 + }, + { + "key": "10_to_100", + "label": "Small stream (10 to 100 km2)", + "hasCurve": true, + "n": 21 + }, + { + "key": "gt_100", + "label": "Large stream (over 100 km2)", + "hasCurve": true, + "n": 17 + } + ], + "registryVersion": 1, + "status": "accept" + }, + "discrimination": { + "aucRefVsPressure": 0.576, + "nRef": 69, + "nPressure": 139, + "medianRefIndex": 0.867, + "medianPressureIndex": 0.786, + "aucRvsIm": 0.222, + "nR": 9, + "nIm": 22, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.1676, + "n_cells": 18, + "c1_share": 0.3889 + }, + "transferNote": "69 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "curveLayers": [ + { + "stratum": "", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 24.866309574672155, + "y": 0.3 + }, + { + "x": 58.02138900756836, + "y": 0.7 + }, + { + "x": 93.5828857421875, + "y": 1.0 + }, + { + "x": 100.0, + "y": 1.0 + } + ] + }, + { + "stratum": "le_10", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 35.49465342930385, + "y": 0.3 + }, + { + "x": 82.82085800170898, + "y": 0.7 + }, + { + "x": 96.65775299072266, + "y": 1.0 + }, + { + "x": 100.0, + "y": 1.0 + } + ] + }, + { + "stratum": "10_to_100", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 29.67914363316127, + "y": 0.3 + }, + { + "x": 69.25133514404297, + "y": 0.7 + }, + { + "x": 90.24063873291016, + "y": 1.0 + }, + { + "x": 100.0, + "y": 1.0 + } + ] + }, + { + "stratum": "gt_100", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 7.620320728846958, + "y": 0.3 + }, + { + "x": 17.78074836730957, + "y": 0.7 + }, + { + "x": 58.02138900756836, + "y": 1.0 + }, + { + "x": 78.14170932769775, + "y": 1.0 + } + ] + } + ], + "activeStratum": "", + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "carbon-processing", + "functionName": "Carbon processing", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-phab-xcmgw", + "metricName": "Riparian veg cover, woody", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Riparian veg cover, woody (frac)", + "howToMeasure": "Riparian canopy plus mid-layer plus ground cover; higher is better.", + "methodContext": "In a 10 m by 10 m plot on each bank at each transect, estimate the areal cover class of woody vegetation in the canopy, the understory and the ground layer. The value is the summed woody cover of the three layers, averaged over the 22 plots, as a fraction.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.334577922310148, + "y": 0.3 + }, + { + "x": 0.7806818187236786, + "y": 0.7 + }, + { + "x": 1.4625000357627869, + "y": 1.0 + }, + { + "x": 1.803409144282341, + "y": 1.0 + } + ] + }, + "referenceN": 87, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 8.4 (Ozark/Ouachita-Appalachian Forests) because this ecoregion has too few least-disturbed stations of its own. 87 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.50 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.10, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.50 of evaluation regions; two thirds required; net optimism +0.10, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.2397727221250534, + 2.892045497894287 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "8.4", + "regionName": "Ozark/Ouachita-Appalachian Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 104, + "nComparable": 87, + "nUsable": 87, + "nLocal": 4, + "nHuc12": 78, + "disposition": "adequate", + "family": "riparian", + "covariates": [ + "drainage_area_sqkm", + "precip8110ws" + ], + "selfCoverage": 1.0, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "87 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.50 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.10, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5, + "net_opt": 0.0977, + "n_cells": 18, + "c1_share": 0.5 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 0.7392045557498932, + "q50": 0.8068181872367859, + "q75": 0.9085227400064468 + }, + "discrimination": { + "aucRefVsPressure": 0.583, + "nRef": 87, + "nPressure": 211, + "medianRefIndex": 0.869, + "medianPressureIndex": 0.804, + "aucRvsIm": 0.499, + "nR": 11, + "nIm": 31, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5, + "net_opt": 0.0977, + "n_cells": 18, + "c1_share": 0.5 + }, + "transferNote": "87 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.50 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.10, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "nutrient-cycling", + "functionName": "Nutrient cycling", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-chem-ntl", + "metricName": "Total nitrogen", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2018-19 regional total nitrogen thresholds, NARS-9 region SAP", + "xLabel": "Total nitrogen (mg N/L)", + "howToMeasure": "Total nitrogen; higher indicates nutrient enrichment (worse). The total fraction, reported in every NRSA cycle, and the fraction published nitrogen criteria are written against.", + "methodContext": "Total nitrogen in milligrams of nitrogen per liter, laboratory analysis of the unfiltered mid-channel grab sample from the X-site, kept on ice.", + "curve": { + "layerName": "USEPA NRSA 2018-19 regional total nitrogen thresholds, NARS-9 region SAP", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 0.2405, + "y": 0.69 + }, + { + "x": 0.456, + "y": 0.39 + }, + { + "x": 0.73615, + "y": 0.0 + } + ] + }, + "curveCaveats": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ], + "confidenceLabel": "Published benchmark", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "NRSA 2018-19 regional total nitrogen thresholds, NARS-9 region SAP", + "easiMethod": "regional-nutrient-condition", + "region": "SAP", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "≤0.24 mg N/L" + }, + { + "rating": "Fair", + "label": ">0.24 to <0.456 mg N/L" + }, + { + "rating": "Poor", + "label": "≥0.456 mg N/L" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "nars-regions", + "text": "Ecoregions Used in the National Aquatic Resource Surveys" + } + ], + "limitations": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ] + }, + "referenceSupport": { + "status": "published", + "level": null, + "levelLabel": "", + "regionCode": "70", + "regionName": "Western Allegheny Plateau", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 0, + "nComparable": 0, + "nUsable": 0, + "nLocal": 0, + "nHuc12": 0, + "disposition": "exploratory", + "family": "water_chemistry", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Scored against a published criterion for NARS-9 region SAP rather than against stations of this ecoregion. Its breakpoints are 0.24 and 0.456 mg N/L. The criterion carries its own definition of reference, which need not match this assessment's.", + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 0.21775000542402267, + "q50": 0.33500000834465027, + "q75": 0.4612499922513962 + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "publishedBenchmark": { + "benchmark": "Nutrient condition", + "methodKey": "regional-nutrient-condition", + "analyte": "total nitrogen", + "fraction": "total", + "citations": [ + "nrsa-2018-19", + "nars-regions", + "wqp" + ], + "sourceTier": "connected-nearby", + "confidence": "M/L", + "provisional": false, + "limitations": [ + "Nearby monitoring stations are not necessarily reach-specific.", + "Each station is reduced to a median before station medians are combined, preventing heavily sampled stations from dominating.", + "One analyte may produce a partial rating.", + "When observations are unavailable, the CHEM fallback represents landscape integrity rather than measured nutrient concentration." + ], + "unitConversion": "mg/L to mg N/L x1.0", + "region": "SAP" + }, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical" + }, + { + "metricId": "spring-chem-ptl", + "metricName": "Total phosphorus", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2018-19 regional total phosphorus thresholds, NARS-9 region SAP", + "xLabel": "Total phosphorus (ug/L)", + "howToMeasure": "Total phosphorus; higher indicates nutrient enrichment (worse).", + "methodContext": "Total phosphorus in micrograms per liter, laboratory analysis of the mid-channel grab sample from the X-site, kept on ice.", + "curve": { + "layerName": "USEPA NRSA 2018-19 regional total phosphorus thresholds, NARS-9 region SAP", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 14.85, + "y": 0.69 + }, + { + "x": 24.4, + "y": 0.39 + }, + { + "x": 36.815, + "y": 0.0 + } + ] + }, + "curveCaveats": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ], + "confidenceLabel": "Published benchmark", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "NRSA 2018-19 regional total phosphorus thresholds, NARS-9 region SAP", + "easiMethod": "regional-nutrient-condition", + "region": "SAP", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "≤14.8 ug/L" + }, + { + "rating": "Fair", + "label": ">14.8 to <24.4 ug/L" + }, + { + "rating": "Poor", + "label": "≥24.4 ug/L" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "nars-regions", + "text": "Ecoregions Used in the National Aquatic Resource Surveys" + } + ], + "limitations": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ] + }, + "referenceSupport": { + "status": "published", + "level": null, + "levelLabel": "", + "regionCode": "70", + "regionName": "Western Allegheny Plateau", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 0, + "nComparable": 0, + "nUsable": 0, + "nLocal": 0, + "nHuc12": 0, + "disposition": "exploratory", + "family": "water_chemistry", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Scored against a published criterion for NARS-9 region SAP rather than against stations of this ecoregion. Its breakpoints are 14.8 and 24.4 ug/L. The criterion carries its own definition of reference, which need not match this assessment's.", + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 14.318250179290771, + "q50": 18.84000015258789, + "q75": 40.57525014877319 + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "publishedBenchmark": { + "benchmark": "Nutrient condition", + "methodKey": "regional-nutrient-condition", + "analyte": "total phosphorus", + "fraction": "total", + "citations": [ + "nrsa-2018-19", + "nars-regions", + "wqp" + ], + "sourceTier": "connected-nearby", + "confidence": "M/L", + "provisional": false, + "limitations": [ + "Nearby monitoring stations are not necessarily reach-specific.", + "Each station is reduced to a median before station medians are combined, preventing heavily sampled stations from dominating.", + "One analyte may produce a partial rating.", + "When observations are unavailable, the CHEM fallback represents landscape integrity rather than measured nutrient concentration." + ], + "unitConversion": "mg/L to ug/L x1000.0", + "region": "SAP" + }, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "water-soil-quality", + "functionName": "Water & soil quality", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-chem-ph", + "metricName": "pH", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "pH (Std. Units)", + "howToMeasure": "pH degrades condition at BOTH extremes. Two-sided (optimum) curve: scored 1.0 across the reference interquartile core, falling in both tails.", + "methodContext": "pH of the mid-channel grab sample from the X-site, as NRSA reports it. A calibrated multi-parameter meter reads pH in the stream at the same point, at 0.5 m depth or mid-depth in shallow water.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 6.089998722076416, + "y": 0.0 + }, + { + "x": 6.7599992752075195, + "y": 0.3 + }, + { + "x": 7.1954996347427365, + "y": 0.7 + }, + { + "x": 7.429999828338623, + "y": 1.0 + }, + { + "x": 8.100000381469727, + "y": 1.0 + }, + { + "x": 8.334500575065613, + "y": 0.7 + }, + { + "x": 8.77000093460083, + "y": 0.3 + }, + { + "x": 9.440001487731934, + "y": 0.0 + } + ] + }, + "referenceN": 29, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "pH carries natural geology (calcareous or naturally acidic waters) as well as disturbance, and a two-sided core narrower than measurement precision is noise rather than condition.", + "The reference stations for this curve were borrowed from Level II ecoregion 8.4 (Ozark/Ouachita-Appalachian Forests) because this ecoregion has too few least-disturbed stations of its own. 29 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 6.440000057220459, + 8.34000015258789 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "8.4", + "regionName": "Ozark/Ouachita-Appalachian Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 104, + "nComparable": 29, + "nUsable": 29, + "nLocal": 4, + "nHuc12": 27, + "disposition": "adequate", + "family": "water_chemistry", + "covariates": [ + "bfiws", + "runoffws", + "lith_group" + ], + "selfCoverage": 0.917, + "supportedLevel": "l2", + "transferRisk": "low", + "transferNote": "29 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 7.7124998569488525, + "q50": 7.924999952316284, + "q75": 7.990000009536743 + }, + "discrimination": { + "aucRefVsPressure": 0.477, + "nRef": 29, + "nPressure": 209, + "medianRefIndex": 0.971, + "medianPressureIndex": 0.987, + "aucRvsIm": 0.548, + "nR": 8, + "nIm": 31, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-chem-turb", + "metricName": "Turbidity", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Turbidity (NTU)", + "howToMeasure": "Turbidity; higher indicates more suspended sediment (worse).", + "methodContext": "Turbidity in nephelometric turbidity units, laboratory analysis of the mid-channel grab sample from the X-site. Sample before anyone walks the channel upstream.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 1.618778206273528, + "y": 1.0 + }, + { + "x": 6.944500415821734, + "y": 0.7 + }, + { + "x": 14.933083730144043, + "y": 0.3 + }, + { + "x": 20.25880593969225, + "y": 0.0 + } + ] + }, + "curveCaveats": [ + "Too few streams in this ecoregion are clean enough to observe the reference condition directly, so the expectation is an extrapolation and not a measurement." + ], + "confidenceLabel": "Low", + "confidenceTotal": 47.5, + "criteriaBasis": "reference", + "referenceSupport": { + "status": "modeled", + "level": null, + "levelLabel": "", + "regionCode": "70", + "regionName": "Western Allegheny Plateau", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 3149, + "nComparable": 3149, + "nUsable": 3149, + "nLocal": 34, + "nHuc12": 0, + "disposition": "exploratory", + "family": "water_chemistry", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Only 2 of this ecoregion's stations pass the reference screen, too few to observe reference condition, and no station pool passed the acceptance criteria. The response to landscape pressure was fitted across 3,149 stations nationally and evaluated at the median pressure of the national reference streams. This ecoregion's own level was estimated from 34 of its stations. This ecoregion's least agricultural stream carries 0.5 percentage points more agricultural cover than that point, so the curve is an extrapolation.", + "basis": "modeled-reference", + "basisLabel": "Modeled reference", + "basisStatement": "Reference curve from a modeled expectation. The response to landscape pressure is estimated nationally and this ecoregion's own level is added, because the ecoregion holds too few streams clean enough to observe reference condition directly.", + "basisLimit": "Too few streams in this ecoregion are clean enough to observe the reference condition directly, so the expectation is an extrapolation and not a measurement." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 2.125, + "q50": 4.080000042915344, + "q75": 6.254999995231628 + }, + "basis": "modeled-reference", + "basisLabel": "Modeled reference", + "basisStatement": "Reference curve from a modeled expectation. The response to landscape pressure is estimated nationally and this ecoregion's own level is added, because the ecoregion holds too few streams clean enough to observe reference condition directly.", + "basisLimit": "Too few streams in this ecoregion are clean enough to observe the reference condition directly, so the expectation is an extrapolation and not a measurement.", + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "habitat-provision", + "functionName": "Habitat provision", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-phab-pct-fast", + "metricName": "Fast-water / riffle habitat", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Fast-water / riffle habitat (%)", + "howToMeasure": "Percent fast-water (riffle/run) habitat; more generally better for many biota. Ecoregion-dependent.", + "methodContext": "At each thalweg station record the channel unit (falls, cascade, rapid, riffle, glide, pool, dry). The value is the percent of stations in fast water (falls, cascade, rapid or riffle).", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 5.5417256355285645, + "y": 0.3 + }, + { + "x": 12.93069314956665, + "y": 0.7 + }, + { + "x": 37.5, + "y": 1.0 + }, + { + "x": 49.784653425216675, + "y": 1.0 + } + ] + }, + "referenceN": 51, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 8.4 (Ozark/Ouachita-Appalachian Forests) because this ecoregion has too few least-disturbed stations of its own. 51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 0.0, + 91.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "8.4", + "regionName": "Ozark/Ouachita-Appalachian Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 104, + "nComparable": 51, + "nUsable": 51, + "nLocal": 4, + "nHuc12": 47, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.917, + "supportedLevel": "l2", + "transferRisk": "low", + "transferNote": "51 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 5.25, + "q50": 19.0, + "q75": 27.000000476837158 + }, + "stratifier": { + "key": "NhdSlopeClass", + "variable": "nhd_slope", + "units": "m/m", + "source": "NHDPlus V2 flowline slope", + "breaks": [ + 0.005, + 0.02 + ], + "right": false, + "classes": [ + { + "key": "lt_0.5", + "label": "Low gradient (under 0.5 percent)", + "hasCurve": true, + "n": 26 + }, + { + "key": "0.5_to_2", + "label": "Moderate gradient (0.5 to 2 percent)", + "hasCurve": true, + "n": 20 + }, + { + "key": "ge_2", + "label": "Steep (2 percent and above)", + "hasCurve": false, + "n": 5 + } + ], + "registryVersion": 1, + "status": "accept" + }, + "discrimination": { + "aucRefVsPressure": 0.547, + "nRef": 51, + "nPressure": 211, + "medianRefIndex": 0.807, + "medianPressureIndex": 0.774, + "aucRvsIm": 0.56, + "nR": 11, + "nIm": 31, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "curveLayers": [ + { + "stratum": "", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 5.5417256355285645, + "y": 0.3 + }, + { + "x": 12.93069314956665, + "y": 0.7 + }, + { + "x": 37.5, + "y": 1.0 + }, + { + "x": 49.784653425216675, + "y": 1.0 + } + ] + }, + { + "stratum": "lt_0.5", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 4.699434246335711, + "y": 0.3 + }, + { + "x": 10.965346574783325, + "y": 0.7 + }, + { + "x": 27.81818199157715, + "y": 1.0 + }, + { + "x": 36.24459969997406, + "y": 1.0 + } + ] + }, + { + "stratum": "0.5_to_2", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 6.75, + "y": 0.3 + }, + { + "x": 15.75, + "y": 0.7 + }, + { + "x": 60.0, + "y": 1.0 + }, + { + "x": 82.125, + "y": 1.0 + } + ] + } + ], + "activeStratum": "", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xfc-nat", + "metricName": "Natural fish cover", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Natural fish cover (frac)", + "howToMeasure": "Natural fish cover; higher is better.", + "methodContext": "In the 10 m of channel centered on each transect, estimate the areal cover class of each fish cover type on the form (wood, brush, overhanging vegetation, undercut banks, boulders and the rest). The value is the summed areal cover of the types that are not man-made, averaged over the transects.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.08620129632098335, + "y": 0.3 + }, + { + "x": 0.20113635808229446, + "y": 0.7 + }, + { + "x": 0.4534090906381607, + "y": 1.0 + }, + { + "x": 0.5795454569160938, + "y": 1.0 + } + ] + }, + "referenceN": 87, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 8.4 (Ozark/Ouachita-Appalachian Forests) because this ecoregion has too few least-disturbed stations of its own. 87 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.61 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.15, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.61 of evaluation regions; two thirds required; net optimism +0.15, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.014999999664723873, + 1.2454545497894287 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "8.4", + "regionName": "Ozark/Ouachita-Appalachian Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 104, + "nComparable": 87, + "nUsable": 87, + "nLocal": 4, + "nHuc12": 78, + "disposition": "adequate", + "family": "riparian", + "covariates": [ + "drainage_area_sqkm", + "precip8110ws" + ], + "selfCoverage": 1.0, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "87 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.61 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.15, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6111, + "net_opt": 0.1469, + "n_cells": 18, + "c1_share": 0.3889 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 0.14772726967930794, + "q50": 0.2090909108519554, + "q75": 0.3755681812763214 + }, + "stratifier": { + "key": "NhdDrainageAreaClass", + "variable": "drainage_area_sqkm", + "units": "km2", + "source": "NHDPlus V2 total drainage area", + "breaks": [ + 10.0, + 100.0 + ], + "right": true, + "classes": [ + { + "key": "le_10", + "label": "Headwater (10 km2 and under)", + "hasCurve": true, + "n": 31 + }, + { + "key": "10_to_100", + "label": "Small stream (10 to 100 km2)", + "hasCurve": true, + "n": 21 + }, + { + "key": "gt_100", + "label": "Large stream (over 100 km2)", + "hasCurve": true, + "n": 35 + } + ], + "registryVersion": 1, + "status": "accept" + }, + "discrimination": { + "aucRefVsPressure": 0.55, + "nRef": 87, + "nPressure": 211, + "medianRefIndex": 0.825, + "medianPressureIndex": 0.774, + "aucRvsIm": 0.365, + "nR": 11, + "nIm": 31, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6111, + "net_opt": 0.1469, + "n_cells": 18, + "c1_share": 0.3889 + }, + "transferNote": "87 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level II 8.4 (Ozark/Ouachita-Appalachian Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.61 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.15, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "curveLayers": [ + { + "stratum": "", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.08620129632098335, + "y": 0.3 + }, + { + "x": 0.20113635808229446, + "y": 0.7 + }, + { + "x": 0.4534090906381607, + "y": 1.0 + }, + { + "x": 0.5795454569160938, + "y": 1.0 + } + ] + }, + { + "stratum": "le_10", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.09253246869359698, + "y": 0.3 + }, + { + "x": 0.21590909361839294, + "y": 0.7 + }, + { + "x": 0.42056818306446075, + "y": 1.0 + }, + { + "x": 0.5228977277874947, + "y": 1.0 + } + ] + }, + { + "stratum": "10_to_100", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.08961038717201777, + "y": 0.3 + }, + { + "x": 0.20909090340137482, + "y": 0.7 + }, + { + "x": 0.7772727012634277, + "y": 1.0 + }, + { + "x": 1.0613636001944542, + "y": 1.0 + } + ] + }, + { + "stratum": "gt_100", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.06769480449812752, + "y": 0.3 + }, + { + "x": 0.15795454382896423, + "y": 0.7 + }, + { + "x": 0.39886362850666046, + "y": 1.0 + }, + { + "x": 0.5193181708455086, + "y": 1.0 + } + ] + } + ], + "activeStratum": "", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "population-support", + "functionName": "Population support", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-fish-nat-lithpind", + "metricName": "Simple lithophil fish individuals", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Simple lithophil fish individuals (%)", + "howToMeasure": "Percent of native fish individuals that are simple lithophils, spawning on clean coarse substrate without nest building; higher is better. Reproduction depends on substrate that fine sediment smothers.", + "methodContext": "From the same upstream electrofishing pass over every habitat between the transects, with every fish identified and counted. The value is the percent of native individuals that are simple lithophils, spawning on clean coarse substrate without building a nest.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 21.55285712650844, + "y": 0.3 + }, + { + "x": 50.28999996185303, + "y": 0.7 + }, + { + "x": 68.6449966430664, + "y": 1.0 + }, + { + "x": 77.8224949836731, + "y": 1.0 + } + ] + }, + "referenceN": 28, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level I ecoregion 8 (Eastern Temperate Forests) because this ecoregion has too few least-disturbed stations of its own. 28 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level I 8 (Eastern Temperate Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is high and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.0, + 100.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l1", + "level": "l1", + "levelLabel": "Level I", + "regionCode": "8", + "regionName": "Eastern Temperate Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 359, + "nComparable": 29, + "nUsable": 28, + "nLocal": 4, + "nHuc12": 27, + "disposition": "adequate", + "family": "biology", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "tmean8110ws" + ], + "selfCoverage": 0.944, + "supportedLevel": "l3", + "transferRisk": "high", + "transferNote": "28 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level I 8 (Eastern Temperate Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is high and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 9, + "q25": 65.12000274658203, + "q50": 81.62000274658203, + "q75": 87.3499984741211 + }, + "discrimination": { + "aucRefVsPressure": 0.657, + "nRef": 28, + "nPressure": 1014, + "medianRefIndex": 0.931, + "medianPressureIndex": 0.535, + "aucRvsIm": 0.552, + "nR": 34, + "nIm": 176, + "verdict": "discriminates" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-fish-nat-ntolptax", + "metricName": "Native non-tolerant fish taxa", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Native non-tolerant fish taxa (%)", + "howToMeasure": "Percent of native fish taxa not classed tolerant (TOLERANCE_NRSA); higher is better. A proportion, so it does not carry the size of a region's species pool the way a richness count does.", + "methodContext": "From the same upstream electrofishing pass over every habitat between the transects, with every fish identified and counted. The value is the percent of native taxa that are not classed tolerant.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 23.303571019853866, + "y": 0.3 + }, + { + "x": 54.374999046325684, + "y": 0.7 + }, + { + "x": 75.0, + "y": 1.0 + }, + { + "x": 85.31250047683716, + "y": 1.0 + } + ] + }, + "referenceN": 28, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level I ecoregion 8 (Eastern Temperate Forests) because this ecoregion has too few least-disturbed stations of its own. 28 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level I 8 (Eastern Temperate Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is high and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.0, + 100.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l1", + "level": "l1", + "levelLabel": "Level I", + "regionCode": "8", + "regionName": "Eastern Temperate Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 359, + "nComparable": 29, + "nUsable": 28, + "nLocal": 4, + "nHuc12": 27, + "disposition": "adequate", + "family": "biology", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "tmean8110ws" + ], + "selfCoverage": 0.944, + "supportedLevel": "l3", + "transferRisk": "high", + "transferNote": "28 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level I 8 (Eastern Temperate Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is high and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 9, + "q25": 60.0, + "q50": 64.29000091552734, + "q75": 68.97000122070312 + }, + "discrimination": { + "aucRefVsPressure": 0.619, + "nRef": 28, + "nPressure": 1014, + "medianRefIndex": 0.878, + "medianPressureIndex": 0.751, + "aucRvsIm": 0.682, + "nR": 34, + "nIm": 176, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "community-dynamics", + "functionName": "Community dynamics", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-bent-tolrpind", + "metricName": "Tolerant individuals (%) ~ HBI", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Tolerant individuals (%) ~ HBI", + "howToMeasure": "Percent tolerant individuals; a higher share of pollution-tolerant taxa indicates worse condition.", + "methodContext": "From the same 11-transect composite D-frame net sample (500 micrometer mesh) and laboratory subsample. The value is the percent of individuals that belong to pollution tolerant taxa.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 8.329999923706055, + "y": 1.0 + }, + { + "x": 25.329999923706055, + "y": 0.7 + }, + { + "x": 50.829999923706055, + "y": 0.3 + }, + { + "x": 67.82999992370605, + "y": 0.0 + } + ] + }, + "referenceN": 29, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level I ecoregion 8 (Eastern Temperate Forests) because this ecoregion has too few least-disturbed stations of its own. 29 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level I 8 (Eastern Temperate Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.39 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.15, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.39 of evaluation regions; two thirds required; net optimism +0.15, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 2.0, + 48.119998931884766 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l1", + "level": "l1", + "levelLabel": "Level I", + "regionCode": "8", + "regionName": "Eastern Temperate Forests", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 37.8 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 37.8, + "agricultureRule": "epa_reference_range", + "nPool": 359, + "nComparable": 29, + "nUsable": 29, + "nLocal": 4, + "nHuc12": 28, + "disposition": "adequate", + "family": "biology", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "tmean8110ws" + ], + "selfCoverage": 0.944, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "29 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level I 8 (Eastern Temperate Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.39 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.15, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l1", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.3889, + "net_opt": 0.1497, + "n_cells": 18, + "c1_share": 0.2778 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 7.414999961853027, + "q50": 14.545000076293945, + "q75": 32.582499980926514 + }, + "discrimination": { + "aucRefVsPressure": 0.604, + "nRef": 29, + "nPressure": 1118, + "medianRefIndex": 0.926, + "medianPressureIndex": 0.788, + "aucRvsIm": 0.666, + "nR": 36, + "nIm": 199, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l1", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.3889, + "net_opt": 0.1497, + "n_cells": 18, + "c1_share": 0.2778 + }, + "transferNote": "29 stations passing the regional least-disturbed screen (watershed agriculture up to 37.8 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region SAP, with the relaxed tier's other limits) from Level I 8 (Eastern Temperate Forests), 4 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.39 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.15, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-bent-hprime", + "metricName": "Shannon diversity (H')", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Shannon diversity (H')", + "howToMeasure": "Benthic Shannon diversity; higher diversity indicates better condition.", + "methodContext": "From the same 11-transect composite D-frame net sample (500 micrometer mesh) and laboratory subsample. The value is the Shannon diversity of the taxa counted.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 70), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 1.1014972296812842, + "y": 0.3 + }, + { + "x": 2.570160202589663, + "y": 0.7 + }, + { + "x": 3.1894696245986465, + "y": 1.0 + }, + { + "x": 3.4991243356031383, + "y": 1.0 + } + ] + }, + "curveCaveats": [ + "Too few streams in this ecoregion are clean enough to observe the reference condition directly, so the expectation is an extrapolation and not a measurement." + ], + "confidenceLabel": "Low", + "confidenceTotal": 44.2, + "criteriaBasis": "reference", + "referenceSupport": { + "status": "modeled", + "level": null, + "levelLabel": "", + "regionCode": "70", + "regionName": "Western Allegheny Plateau", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 3180, + "nComparable": 3180, + "nUsable": 3180, + "nLocal": 34, + "nHuc12": 0, + "disposition": "exploratory", + "family": "biology", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Only 2 of this ecoregion's stations pass the reference screen, too few to observe reference condition, and no station pool passed the acceptance criteria. The response to landscape pressure was fitted across 3,180 stations nationally and evaluated at the median pressure of the national reference streams. This ecoregion's own level was estimated from 34 of its stations. This ecoregion's least agricultural stream carries 0.5 percentage points more agricultural cover than that point, so the curve is an extrapolation.", + "basis": "modeled-reference", + "basisLabel": "Modeled reference", + "basisStatement": "Reference curve from a modeled expectation. The response to landscape pressure is estimated nationally and this ecoregion's own level is added, because the ecoregion holds too few streams clean enough to observe reference condition directly.", + "basisLimit": "Too few streams in this ecoregion are clean enough to observe the reference condition directly, so the expectation is an extrapolation and not a measurement." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 2.8975000977516174, + "q50": 2.990000009536743, + "q75": 3.0999999046325684 + }, + "basis": "modeled-reference", + "basisLabel": "Modeled reference", + "basisStatement": "Reference curve from a modeled expectation. The response to landscape pressure is estimated nationally and this ecoregion's own level is added, because the ecoregion holds too few streams clean enough to observe reference condition directly.", + "basisLimit": "Too few streams in this ecoregion are clean enough to observe the reference condition directly, so the expectation is an extrapolation and not a measurement.", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "watershed-connectivity", + "functionName": "Watershed connectivity", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-nid-dams-1mi", + "metricName": "Mapped dams within one mile", + "inputType": "count", + "sourceCitation": "EASI fixed criteria, Nearby dam-proximity proxy", + "xLabel": "Mapped dams within one mile (dams)", + "howToMeasure": "Mapped dams within one mile is scored on the same fixed criteria EASI uses in every region. Good 0 mapped dams, Fair 1 mapped dam, Poor ≥2 mapped dams.", + "methodContext": "Number of dams in the USACE National Inventory of Dams within one mile of the site. DEEP counts them. Note in the field any barrier the inventory does not show.", + "curve": { + "layerName": "EASI fixed criteria, Nearby dam-proximity proxy", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 1.0, + "y": 0.545 + }, + { + "x": 2.0, + "y": 0.195 + }, + { + "x": 3.0, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Nearby dam-proximity proxy", + "easiMethod": "nearby-dam-proximity", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "0 mapped dams" + }, + { + "rating": "Fair", + "label": "1 mapped dam" + }, + { + "rating": "Poor", + "label": "≥2 mapped dams" + } + ], + "citations": [ + { + "key": "nid", + "text": "USACE National Inventory of Dams" + } + ], + "limitations": [ + "A mapped dam count is a proximity screen and cannot confirm passability or the severity of a barrier.", + "NID carries about 91,000 regulated dams while the National Aquatic Barrier Inventory maps over 500,000 barriers of all sizes, so zero mapped dams is frequently a false negative for passage.", + "Query failure is unscored, not Good." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. 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+ "statement": "Reference condition is set by a fixed landscape-pressure screen, never by a score. 23 borrow comparable least-disturbed stations from a wider region, stating the region and the transfer risk. 2 carry the national reference label: reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own. 2 carry the modeled reference label: reference curve from a modeled expectation. The response to landscape pressure is estimated nationally and this ecoregion's own level is added, because the ecoregion holds too few streams clean enough to observe reference condition directly. 5 carry the published benchmark label: scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's. 12 rest on a flagged transfer: a comparable least-disturbed pool the recovery test did not confirm for this ecoregion, used because no validated source supports the metric here, with transfer risk unvalidated and confidence capped. 1 function rests on a method adopted from EASI's national screening method (provisional), because no reference pool, national donor, model, published benchmark or flagged transfer supported the function in this ecoregion. A metric that no basis supports is not scored, and the function it would have scored is reported as unassessed.", + "nHeldForReview": 0 + }, + "contentDigest": "sha256:2bcc053d3d14cdb214b4cbdf43c9e8482685813f27af6528a45e79e000f13e3e", + "library": { + "libraryId": "western-allegheny-plateau", + "version": 1, + "updatedAt": "2026-09-30T07:05:06Z", + "author": "StreamCurves regional analysis (STAF)", + "revisionNotes": "Reference condition is the fixed landscape-pressure screen least-disturbed-v1 (strict), wadeable non-canal frame. 2 of 36 stations of this ecoregion pass. 0 reference curves use local stations, 23 borrow from a wider region, 5 metrics use fixed criteria, and 0 metrics are withheld for insufficient reference support.", + "region": { + "kind": "ecoregion", + "code": "70", + "name": "Western Allegheny Plateau" + }, + "contentDigest": "sha256:2bcc053d3d14cdb214b4cbdf43c9e8482685813f27af6528a45e79e000f13e3e", + "supersedesVersion": null + } +} diff --git a/library/western-allegheny-plateau-v1-calculator-c7eb5946.c7eb59463ae9.xlsx b/library/western-allegheny-plateau-v1-calculator-c7eb5946.c7eb59463ae9.xlsx new file mode 100644 index 0000000000000000000000000000000000000000..4245e1115a9e8f7bc5e2bd12306ffa7c8a568f92 Binary files /dev/null and b/library/western-allegheny-plateau-v1-calculator-c7eb5946.c7eb59463ae9.xlsx differ diff --git a/library/western-corn-belt-plains-v1-2ce68af6.deep.2ce68af693c1.json b/library/western-corn-belt-plains-v1-2ce68af6.deep.2ce68af693c1.json new file mode 100644 index 0000000000000000000000000000000000000000..0f2387a539ee0d91ca008cdc2efbc3bc2dfc0c7f --- /dev/null +++ b/library/western-corn-belt-plains-v1-2ce68af6.deep.2ce68af693c1.json @@ -0,0 +1,6113 @@ +{ + "schemaVersion": 1, + "tier": "detailed", + "assessmentId": "western-corn-belt-plains", + "assessmentName": "Western Corn Belt Plains reference assessment", + "stateCode": "", + "stateName": "", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "applicability": "Western Corn Belt Plains", + "metricsByFunction": [ + { + "functionId": "catchment-hydrology", + "functionName": "Catchment hydrology", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-pctimp2019ws", + "metricName": "Impervious surface", + "inputType": "proportion", + "sourceCitation": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "xLabel": "Impervious surface (%)", + "howToMeasure": "Impervious surface (%) is scored on the same fixed criteria EASI uses in every region. Good <10%, Fair 10-25%, Poor >25%.", + "methodContext": "Percent of the watershed in impervious surface. DEEP computes it for the delineated watershed. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 10.0, + "y": 0.69 + }, + { + "x": 25.005, + "y": 0.39 + }, + { + "x": 44.5115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Catchment hydrology (land-cover pressure)", + "easiMethod": "catchment-land-cover-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<10%" + }, + { + "rating": "Fair", + "label": "10-25%" + }, + { + "rating": "Poor", + "label": ">25%" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "schueler-1994", + "text": "Schueler 1994, The importance of imperviousness" + }, + { + "key": "allan-2004", + "text": "Allan 2004, Landscapes and riverscapes: the influence of land use on stream ecosystems" + }, + { + "key": "wang-1997", + "text": "Wang et al. 1997, Influences of watershed land use on habitat quality and biotic integrity in Wisconsin streams" + }, + { + "key": "king-2011", + "text": "King et al. 2011, Stream community thresholds at exceptionally low levels of catchment urbanization" + } + ], + "limitations": [ + "The worse input governs because hydrologic alteration through one pathway is not offset by low pressure in the other.", + "Agricultural bands are national screening tiers, not ecological criteria.", + "A result computed from one input is labeled partial.", + "Sensitive macroinvertebrate taxa decline well below the 10 percent impervious Good boundary (community thresholds near 0.5 to 2 percent), so a Good rating is not a no-effect finding (King et al. 2011)." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + }, + { + "metricId": "spring-pctag2019ws", + "metricName": "Agriculture, crop and hay", + "inputType": "proportion", + "sourceCitation": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "xLabel": "Agriculture, crop and hay (%)", + "howToMeasure": "Agriculture, crop and hay (%) is scored on the same fixed criteria EASI uses in every region. Good <30%, Fair 30-50%, Poor >50%.", + "methodContext": "Percent of the watershed in cultivated crops plus hay and pasture. DEEP computes it for the delineated watershed. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 30.0, + "y": 0.69 + }, + { + "x": 50.005, + "y": 0.39 + }, + { + "x": 76.0115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Catchment hydrology (land-cover pressure)", + "easiMethod": "catchment-land-cover-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<30%" + }, + { + "rating": "Fair", + "label": "30-50%" + }, + { + "rating": "Poor", + "label": ">50%" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "schueler-1994", + "text": "Schueler 1994, The importance of imperviousness" + }, + { + "key": "allan-2004", + "text": "Allan 2004, Landscapes and riverscapes: the influence of land use on stream ecosystems" + }, + { + "key": "wang-1997", + "text": "Wang et al. 1997, Influences of watershed land use on habitat quality and biotic integrity in Wisconsin streams" + }, + { + "key": "king-2011", + "text": "King et al. 2011, Stream community thresholds at exceptionally low levels of catchment urbanization" + } + ], + "limitations": [ + "The worse input governs because hydrologic alteration through one pathway is not offset by low pressure in the other.", + "Agricultural bands are national screening tiers, not ecological criteria.", + "A result computed from one input is labeled partial.", + "Sensitive macroinvertebrate taxa decline well below the 10 percent impervious Good boundary (community thresholds near 0.5 to 2 percent), so a Good rating is not a no-effect finding (King et al. 2011)." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "surface-water-storage", + "functionName": "Surface water storage", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-pctwet2019ws", + "metricName": "Wetland", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Wetland (%)", + "howToMeasure": "Watershed wetland (%), woody plus herbaceous, both classes required; wetlands store surface water and attenuate flow peaks. EASI scores Surface water storage on the same sum (method watershed-wetland-extent).", + "methodContext": "Percent of the watershed in woody plus herbaceous wetland (NLCD 2019). DEEP reads it from EPA StreamCat for the reach. Nothing is measured in the field.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 2.262857142857143, + "y": 0.3 + }, + { + "x": 5.28, + "y": 0.7 + }, + { + "x": 27.19, + "y": 1.0 + }, + { + "x": 38.145, + "y": 1.0 + } + ] + }, + "referenceN": 69, + "curveCaveats": [ + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.47 of evaluation regions; two thirds required); confidence capped at 39.", + "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "criteriaBasis": "reference", + "referenceSupport": { + "status": "national", + "level": null, + "levelLabel": "", + "regionCode": "national", + "regionName": "National least-disturbed pool", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 770, + "nComparable": 69, + "nUsable": 69, + "nLocal": 0, + "nHuc12": 69, + "disposition": "adequate", + "family": "hydrology", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "unvalidated", + "transferNote": "69 least-disturbed stations from the national pool, the three nearest to each of this ecoregion's streams on the natural setting that governs this metric family, none inside this ecoregion. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.47 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism -0.03, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "3c_matched", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.4737, + "net_opt": -0.0286, + "n_cells": 19, + "c1_share": 0.0526 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 0.0275, + "q50": 0.245, + "q75": 1.205 + }, + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it.", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "3c_matched", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.4737, + "net_opt": -0.0286, + "n_cells": 19, + "c1_share": 0.0526 + }, + "transferNote": "69 least-disturbed stations from the national pool, the three nearest to each of this ecoregion's streams on the natural setting that governs this metric family, none inside this ecoregion. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.47 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism -0.03, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydrology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "reach-inflow", + "functionName": "Reach inflow", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-rddensws", + "metricName": "Road density", + "inputType": "continuous", + "sourceCitation": "EASI fixed criteria, Road-density proxy for concentrated inflow pressure", + "xLabel": "Road density (km/sq km)", + "howToMeasure": "Road density (km/sq km) is scored on the same fixed criteria EASI uses in every region. Good <1 km/km², Fair 1-<3 km/km², Poor ≥3 km/km².", + "methodContext": "Road length per square kilometer of watershed. DEEP computes it for the delineated watershed. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Road-density proxy for concentrated inflow pressure", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 1.0, + "y": 0.69 + }, + { + "x": 3.0, + "y": 0.39 + }, + { + "x": 5.6, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Road-density proxy for concentrated inflow pressure", + "easiMethod": "road-density-inflow-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<1 km/km²" + }, + { + "rating": "Fair", + "label": "1-<3 km/km²" + }, + { + "rating": "Poor", + "label": "≥3 km/km²" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "usfs-wcf", + "text": "USDA Forest Service 2011, Watershed Condition Classification Technical Guide (FS-978)" + } + ], + "limitations": [ + "Road density does not count actual outfalls or establish whether runoff is treated.", + "The 1 km/km² breakpoint is a screening judgment.", + "USFS watershed-condition guidance classes road density more strictly (good under 1, impaired over 2.4 miles per square mile, about 0.62 and 1.49 km/km²), derived from salmonid watersheds. EASI keeps the NRSA-anchored national screen and discloses the stricter alternative." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "streamflow-regime", + "functionName": "Streamflow regime", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-bfiws", + "metricName": "Base flow index", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Base flow index (%)", + "howToMeasure": "Base-flow index (% of streamflow from baseflow); a higher baseflow share indicates a more stable, groundwater-supported flow regime. Moderate confidence: hydrogeology sets the baseline, so a naturally flashy till catchment reads low without being degraded (see the natural-context criterion below). Scored because flow alteration and withdrawal also move it.", + "methodContext": "Base flow index of the watershed, the percent of streamflow that comes from base flow (USGS base flow index grid). DEEP reads it from EPA StreamCat for the reach. Nothing is measured in the field.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 9.031510714285714, + "y": 0.3 + }, + { + "x": 21.073525, + "y": 0.7 + }, + { + "x": 40.15005, + "y": 1.0 + }, + { + "x": 49.6883125, + "y": 1.0 + } + ] + }, + "referenceN": 38, + "sampleDisposition": "adequate", + "metricRole": "landscape_expectation", + "curveCaveats": [ + "Base-flow index is set largely by hydrogeology: a naturally flashy till catchment reads low on this curve without being degraded.", + "The reference stations for this curve were borrowed from Level I ecoregion 9 (Great Plains) because this ecoregion has too few least-disturbed stations of its own. 38 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level I 9 (Great Plains), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on hydraulic conductivity, precipitation, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.44 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.06, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.44 of evaluation regions; two thirds required; net optimism +0.06, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 7.0, + 70.4545 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l1", + "level": "l1", + "levelLabel": "Level I", + "regionCode": "9", + "regionName": "Great Plains", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 219, + "nComparable": 38, + "nUsable": 38, + "nLocal": 17, + "nHuc12": 33, + "disposition": "adequate", + "family": "hydrology", + "covariates": [ + "hydrlcondws", + "precip8110ws", + "lith_group" + ], + "selfCoverage": 0.89, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "38 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level I 9 (Great Plains), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on hydraulic conductivity, precipitation, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.44 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.06, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l1", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.4444, + "net_opt": 0.0641, + "n_cells": 18, + "c1_share": 0.0556 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 22.2501, + "q50": 37.9045, + "q75": 52.6471 + }, + "discrimination": { + "aucRefVsPressure": 0.497, + "nRef": 38, + "nPressure": 555, + "medianRefIndex": 0.846, + "medianPressureIndex": 0.83, + "aucRvsIm": 0.578, + "nR": 66, + "nIm": 83, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l1", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.4444, + "net_opt": 0.0641, + "n_cells": 18, + "c1_share": 0.0556 + }, + "transferNote": "38 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level I 9 (Great Plains), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on hydraulic conductivity, precipitation, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.44 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.06, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydrology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-dorws", + "metricName": "Degree of regulation", + "inputType": "continuous", + "sourceCitation": "EASI fixed criteria, Flow alteration (degree of regulation)", + "xLabel": "Degree of regulation (%)", + "howToMeasure": "Degree of regulation (%) is scored on the same fixed criteria EASI uses in every region. Good <2%, Fair 2-15%, Poor >15%.", + "methodContext": "Degree of regulation, the normal storage of upstream dams as a percent of mean annual runoff. DEEP reads both from EPA StreamCat for the reach. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Flow alteration (degree of regulation)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 2.0, + "y": 0.69 + }, + { + "x": 15.005, + "y": 0.39 + }, + { + "x": 31.9115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Flow alteration (degree of regulation)", + "easiMethod": "degree-of-regulation", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "<2%" + }, + { + "rating": "Fair", + "label": "2-15%" + }, + { + "rating": "Poor", + "label": ">15%" + } + ], + "citations": [ + { + "key": "streamcat", + "text": "EPA StreamCat Metrics and Definitions" + }, + { + "key": "lehner-2011", + "text": "Lehner et al. 2011, High-resolution mapping of the world's reservoirs and dams" + }, + { + "key": "grill-2019", + "text": "Grill et al. 2019, Mapping the world's free-flowing rivers" + } + ], + "limitations": [ + "Degree of regulation does not describe operating rules, diversions, seasonality, or dam location on the network.", + "Missing or non-positive runoff is not converted to zero and leaves the metric unscored." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "low-flow-baseflow-dynamics", + "functionName": "Low flow and baseflow dynamics", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-bfiws", + "metricName": "Base flow index", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Base flow index (%)", + "howToMeasure": "Base-flow index (% of streamflow from baseflow); a higher baseflow share indicates a more stable, groundwater-supported flow regime. Moderate confidence: hydrogeology sets the baseline, so a naturally flashy till catchment reads low without being degraded (see the natural-context criterion below). Scored because flow alteration and withdrawal also move it.", + "methodContext": "Base flow index of the watershed, the percent of streamflow that comes from base flow (USGS base flow index grid). DEEP reads it from EPA StreamCat for the reach. Nothing is measured in the field.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 9.031510714285714, + "y": 0.3 + }, + { + "x": 21.073525, + "y": 0.7 + }, + { + "x": 40.15005, + "y": 1.0 + }, + { + "x": 49.6883125, + "y": 1.0 + } + ] + }, + "referenceN": 38, + "sampleDisposition": "adequate", + "metricRole": "landscape_expectation", + "curveCaveats": [ + "Base-flow index is set largely by hydrogeology: a naturally flashy till catchment reads low on this curve without being degraded.", + "The reference stations for this curve were borrowed from Level I ecoregion 9 (Great Plains) because this ecoregion has too few least-disturbed stations of its own. 38 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level I 9 (Great Plains), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on hydraulic conductivity, precipitation, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.44 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.06, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.44 of evaluation regions; two thirds required; net optimism +0.06, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 7.0, + 70.4545 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l1", + "level": "l1", + "levelLabel": "Level I", + "regionCode": "9", + "regionName": "Great Plains", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 219, + "nComparable": 38, + "nUsable": 38, + "nLocal": 17, + "nHuc12": 33, + "disposition": "adequate", + "family": "hydrology", + "covariates": [ + "hydrlcondws", + "precip8110ws", + "lith_group" + ], + "selfCoverage": 0.89, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "38 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level I 9 (Great Plains), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on hydraulic conductivity, precipitation, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.44 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.06, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l1", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.4444, + "net_opt": 0.0641, + "n_cells": 18, + "c1_share": 0.0556 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 22.2501, + "q50": 37.9045, + "q75": 52.6471 + }, + "discrimination": { + "aucRefVsPressure": 0.497, + "nRef": 38, + "nPressure": 555, + "medianRefIndex": 0.846, + "medianPressureIndex": 0.83, + "aucRvsIm": 0.578, + "nR": 66, + "nIm": 83, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l1", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.4444, + "net_opt": 0.0641, + "n_cells": 18, + "c1_share": 0.0556 + }, + "transferNote": "38 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level I 9 (Great Plains), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on hydraulic conductivity, precipitation, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.44 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.06, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydraulics", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-rp100-cm", + "metricName": "Residual pool depth", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Residual pool depth (cm)", + "howToMeasure": "Residual pool depth per 100 m; deeper residual pools generally better habitat.", + "methodContext": "Measure the thalweg depth at 10 or 15 evenly spaced stations between each pair of transects (100 or 150 along the reach). The value is the mean residual pool depth in centimeters, computed from that depth profile and the reach slope with the NRSA physical habitat calculations.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 3.9027237551552907, + "y": 0.3 + }, + { + "x": 9.106355428695679, + "y": 0.7 + }, + { + "x": 26.685336112976074, + "y": 1.0 + }, + { + "x": 35.47482645511627, + "y": 1.0 + } + ] + }, + "referenceN": 27, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 9.2 (Temperate Prairies) because this ecoregion has too few least-disturbed stations of its own. 27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 2.9731075763702393, + 52.950584411621094 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "9.2", + "regionName": "Temperate Prairies", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 35, + "nComparable": 27, + "nUsable": 27, + "nLocal": 17, + "nHuc12": 23, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.872, + "supportedLevel": "l3", + "transferRisk": "moderate", + "transferNote": "27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 8.36575973033905, + "q50": 15.66655683517456, + "q75": 24.365291595458984 + }, + "discrimination": { + "aucRefVsPressure": 0.455, + "nRef": 27, + "nPressure": 198, + "medianRefIndex": 0.835, + "medianPressureIndex": 0.894, + "aucRvsIm": null, + "nR": 4, + "nIm": 25, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Hydraulics", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "high-flow-dynamics", + "functionName": "High flow dynamics", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-pctimp2019ws", + "metricName": "Impervious surface", + "inputType": "proportion", + "sourceCitation": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "xLabel": "Impervious surface (%)", + "howToMeasure": "Impervious surface (%) is scored on the same fixed criteria EASI uses in every region. Good <10%, Fair 10-25%, Poor >25%.", + "methodContext": "Percent of the watershed in impervious surface. DEEP computes it for the delineated watershed. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 10.0, + "y": 0.69 + }, + { + "x": 25.005, + "y": 0.39 + }, + { + "x": 44.5115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Catchment hydrology (land-cover pressure)", + "easiMethod": "catchment-land-cover-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<10%" + }, + { + "rating": "Fair", + "label": "10-25%" + }, + { + "rating": "Poor", + "label": ">25%" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "schueler-1994", + "text": "Schueler 1994, The importance of imperviousness" + }, + { + "key": "allan-2004", + "text": "Allan 2004, Landscapes and riverscapes: the influence of land use on stream ecosystems" + }, + { + "key": "wang-1997", + "text": "Wang et al. 1997, Influences of watershed land use on habitat quality and biotic integrity in Wisconsin streams" + }, + { + "key": "king-2011", + "text": "King et al. 2011, Stream community thresholds at exceptionally low levels of catchment urbanization" + } + ], + "limitations": [ + "The worse input governs because hydrologic alteration through one pathway is not offset by low pressure in the other.", + "Agricultural bands are national screening tiers, not ecological criteria.", + "A result computed from one input is labeled partial.", + "Sensitive macroinvertebrate taxa decline well below the 10 percent impervious Good boundary (community thresholds near 0.5 to 2 percent), so a Good rating is not a no-effect finding (King et al. 2011)." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydraulics", + "assignmentOrigin": "additional-function" + } + ] + }, + { + "functionId": "floodplain-connectivity", + "functionName": "Floodplain connectivity", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-phab-bfwd-rat", + "metricName": "Bankfull width:depth ratio", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull width:depth ratio", + "howToMeasure": "Bankfull width-to-depth ratio; both over-widened (very high) and incised (very low) degrade condition. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the bankfull width and the bankfull height above the water surface, and the thalweg depth. The value is the mean bankfull width divided by the mean bankfull depth (bankfull height plus thalweg depth).", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 2.850760078430176, + "y": 0.7 + }, + { + "x": 6.044569492340088, + "y": 1.0 + }, + { + "x": 15.169739246368408, + "y": 1.0 + }, + { + "x": 18.36354866027832, + "y": 0.7 + }, + { + "x": 24.29490900039673, + "y": 0.3 + }, + { + "x": 33.42007875442505, + "y": 0.0 + } + ] + }, + "referenceN": 27, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 9.2 (Temperate Prairies) because this ecoregion has too few least-disturbed stations of its own. 27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.67 of evaluation regions; two thirds required; net optimism +0.16, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 3.1697096824645996, + 33.39263153076172 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "9.2", + "regionName": "Temperate Prairies", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 35, + "nComparable": 27, + "nUsable": 27, + "nLocal": 17, + "nHuc12": 23, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.872, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6667, + "net_opt": 0.16, + "n_cells": 18, + "c1_share": 0.2222 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 7.6606258153915405, + "q50": 10.933428287506104, + "q75": 19.935202598571777 + }, + "discrimination": { + "aucRefVsPressure": 0.475, + "nRef": 27, + "nPressure": 199, + "medianRefIndex": 0.982, + "medianPressureIndex": 1.0, + "aucRvsIm": null, + "nR": 4, + "nIm": 25, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6667, + "net_opt": 0.16, + "n_cells": 18, + "c1_share": 0.2222 + }, + "transferNote": "27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydraulics", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xbkf-h", + "metricName": "Bankfull height above channel", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull height above channel (m)", + "howToMeasure": "Mean bankfull height; both incision (very high banks) and over-widening (very low) depart from reference. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the height of the bankfull elevation above the present water surface in meters, with a rod at the water's edge and a clinometer held level at bankfull. The value is the mean of the 11 heights.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.23159091919660568, + "y": 0.7 + }, + { + "x": 0.3954545557498932, + "y": 1.0 + }, + { + "x": 0.8636363744735718, + "y": 1.0 + }, + { + "x": 1.0275000110268593, + "y": 0.7 + }, + { + "x": 1.3318181931972504, + "y": 0.3 + }, + { + "x": 1.800000011920929, + "y": 0.0 + } + ] + }, + "referenceN": 27, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 9.2 (Temperate Prairies) because this ecoregion has too few least-disturbed stations of its own. 27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.04, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.56 of evaluation regions; two thirds required); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.15636363625526428, + 3.0681817531585693 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "9.2", + "regionName": "Temperate Prairies", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 35, + "nComparable": 27, + "nUsable": 27, + "nLocal": 17, + "nHuc12": 23, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.872, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.04, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.0354, + "n_cells": 18, + "c1_share": 0.3889 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 0.38863637298345566, + "q50": 0.6009091138839722, + "q75": 0.7396136373281479 + }, + "discrimination": { + "aucRefVsPressure": 0.49, + "nRef": 27, + "nPressure": 199, + "medianRefIndex": 0.957, + "medianPressureIndex": 0.975, + "aucRvsIm": null, + "nR": 4, + "nIm": 25, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.0354, + "n_cells": 18, + "c1_share": 0.3889 + }, + "transferNote": "27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.04, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydraulics", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "hyporheic-connectivity", + "functionName": "Hyporheic connectivity", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-phab-pct-safn", + "metricName": "Sand + fines", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Sand + fines (%)", + "howToMeasure": "Percent sand and fines; higher indicates fine-sediment loading (worse).", + "methodContext": "Record the size class of the particle at five evenly spaced points across each of the 11 transects and the 10 cross-sections midway between them (105 particles). The value is the percent of particles that are sand or finer.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 24.761905670166016, + "y": 1.0 + }, + { + "x": 43.80952453613281, + "y": 1.0 + }, + { + "x": 81.9047622680664, + "y": 0.7 + }, + { + "x": 100.0, + "y": 0.0 + } + ] + }, + "referenceN": 27, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 9.2 (Temperate Prairies) because this ecoregion has too few least-disturbed stations of its own. 27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 24.761905670166016, + 100.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "9.2", + "regionName": "Temperate Prairies", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 35, + "nComparable": 27, + "nUsable": 27, + "nLocal": 17, + "nHuc12": 23, + "disposition": "adequate", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.872, + "supportedLevel": "l2", + "transferRisk": "low", + "transferNote": "27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 55.9523811340332, + "q50": 80.0, + "q75": 95.0 + }, + "discrimination": { + "aucRefVsPressure": 0.621, + "nRef": 27, + "nPressure": 199, + "medianRefIndex": 0.829, + "medianPressureIndex": 0.708, + "aucRvsIm": null, + "nR": 4, + "nIm": 25, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Hydraulics", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xembed", + "metricName": "Embeddedness", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Embeddedness (%)", + "howToMeasure": "Percent embeddedness; higher means interstitial spaces filled with fines (worse).", + "methodContext": "At five evenly spaced points across each of the 11 transects, estimate how much of the particle under the point is buried in sand and finer sediment, in percent. Record the 55 estimates. The value is their mean.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 51.18181228637695, + "y": 1.0 + }, + { + "x": 64.90908813476562, + "y": 1.0 + }, + { + "x": 92.36363983154297, + "y": 0.7 + }, + { + "x": 100.0, + "y": 0.0 + } + ] + }, + "referenceN": 17, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 17 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 46.181819915771484, + 99.81818389892578 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local_relaxed", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "47", + "regionName": "Western Corn Belt Plains", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 17, + "nComparable": 17, + "nUsable": 17, + "nLocal": 17, + "nHuc12": 15, + "disposition": "exploratory", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.872, + "supportedLevel": "l2", + "transferRisk": "none", + "transferNote": "17 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) of this ecoregion.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 25, + "q25": 67.2727279663086, + "q50": 90.54545593261719, + "q75": 96.36363983154297 + }, + "discrimination": { + "aucRefVsPressure": 0.611, + "nRef": 17, + "nPressure": 89, + "medianRefIndex": 0.822, + "medianPressureIndex": 0.71, + "aucRvsIm": null, + "nR": 0, + "nIm": 10, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Hydraulics", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "channel-evolution", + "functionName": "Channel evolution", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-bfwd-rat", + "metricName": "Bankfull width:depth ratio", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull width:depth ratio", + "howToMeasure": "Bankfull width-to-depth ratio; both over-widened (very high) and incised (very low) degrade condition. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the bankfull width and the bankfull height above the water surface, and the thalweg depth. The value is the mean bankfull width divided by the mean bankfull depth (bankfull height plus thalweg depth).", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 2.850760078430176, + "y": 0.7 + }, + { + "x": 6.044569492340088, + "y": 1.0 + }, + { + "x": 15.169739246368408, + "y": 1.0 + }, + { + "x": 18.36354866027832, + "y": 0.7 + }, + { + "x": 24.29490900039673, + "y": 0.3 + }, + { + "x": 33.42007875442505, + "y": 0.0 + } + ] + }, + "referenceN": 27, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 9.2 (Temperate Prairies) because this ecoregion has too few least-disturbed stations of its own. 27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.67 of evaluation regions; two thirds required; net optimism +0.16, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 3.1697096824645996, + 33.39263153076172 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "9.2", + "regionName": "Temperate Prairies", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 35, + "nComparable": 27, + "nUsable": 27, + "nLocal": 17, + "nHuc12": 23, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.872, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6667, + "net_opt": 0.16, + "n_cells": 18, + "c1_share": 0.2222 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 7.6606258153915405, + "q50": 10.933428287506104, + "q75": 19.935202598571777 + }, + "discrimination": { + "aucRefVsPressure": 0.475, + "nRef": 27, + "nPressure": 199, + "medianRefIndex": 0.982, + "medianPressureIndex": 1.0, + "aucRvsIm": null, + "nR": 4, + "nIm": 25, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6667, + "net_opt": 0.16, + "n_cells": 18, + "c1_share": 0.2222 + }, + "transferNote": "27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xbkf-h", + "metricName": "Bankfull height above channel", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull height above channel (m)", + "howToMeasure": "Mean bankfull height; both incision (very high banks) and over-widening (very low) depart from reference. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the height of the bankfull elevation above the present water surface in meters, with a rod at the water's edge and a clinometer held level at bankfull. The value is the mean of the 11 heights.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.23159091919660568, + "y": 0.7 + }, + { + "x": 0.3954545557498932, + "y": 1.0 + }, + { + "x": 0.8636363744735718, + "y": 1.0 + }, + { + "x": 1.0275000110268593, + "y": 0.7 + }, + { + "x": 1.3318181931972504, + "y": 0.3 + }, + { + "x": 1.800000011920929, + "y": 0.0 + } + ] + }, + "referenceN": 27, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 9.2 (Temperate Prairies) because this ecoregion has too few least-disturbed stations of its own. 27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.04, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.56 of evaluation regions; two thirds required); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.15636363625526428, + 3.0681817531585693 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "9.2", + "regionName": "Temperate Prairies", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 35, + "nComparable": 27, + "nUsable": 27, + "nLocal": 17, + "nHuc12": 23, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.872, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.04, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.0354, + "n_cells": 18, + "c1_share": 0.3889 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 0.38863637298345566, + "q50": 0.6009091138839722, + "q75": 0.7396136373281479 + }, + "discrimination": { + "aucRefVsPressure": 0.49, + "nRef": 27, + "nPressure": 199, + "medianRefIndex": 0.957, + "medianPressureIndex": 0.975, + "aucRvsIm": null, + "nR": 4, + "nIm": 25, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.0354, + "n_cells": 18, + "c1_share": 0.3889 + }, + "transferNote": "27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.04, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Geomorphology", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "channel-floodplain-dynamics", + "functionName": "Channel and floodplain dynamics", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-sinu", + "metricName": "Sinuosity", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Sinuosity", + "howToMeasure": "Channel sinuosity; higher generally indicates a more natural planform.", + "methodContext": "Take a compass bearing (backsight) and the distance between each pair of neighboring transects. The value is the channel length along those segments divided by the straight line distance between the ends of the reach.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 1.0, + "y": 0.0 + }, + { + "x": 1.0847663283348083, + "y": 0.7 + }, + { + "x": 1.507570743560791, + "y": 1.0 + }, + { + "x": 1.7189729511737823, + "y": 1.0 + } + ] + }, + "referenceN": 27, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 9.2 (Temperate Prairies) because this ecoregion has too few least-disturbed stations of its own. 27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 1.0130093097686768, + 6.67811918258667 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "9.2", + "regionName": "Temperate Prairies", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 35, + "nComparable": 27, + "nUsable": 27, + "nLocal": 17, + "nHuc12": 23, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.872, + "supportedLevel": "l3", + "transferRisk": "moderate", + "transferNote": "27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 25, + "q25": 1.0949368476867676, + "q50": 1.2394990921020508, + "q75": 1.5285162925720215 + }, + "discrimination": { + "aucRefVsPressure": 0.541, + "nRef": 27, + "nPressure": 159, + "medianRefIndex": 0.903, + "medianPressureIndex": 0.804, + "aucRvsIm": null, + "nR": 4, + "nIm": 19, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xbka", + "metricName": "Bank angle", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bank angle (degrees)", + "howToMeasure": "Mean bank angle; very steep banks indicate incision and very flat banks an over-widened, aggrading channel, so departure from the reference core in either direction departs from reference. Direction resolved at the Northeastern Highlands review gate (owner decision, 2026-08-21), consistent with the width-to-depth and bankfull-height treatment. low_tail flat added at the adversarial review gate (owner decision, 2026-08-21): a regraded or naturally gentle bank holds at the Functioning edge instead of being penalized, because the flat tail is not symmetric evidence of degradation and the framework's stated use is restoration evaluation.", + "methodContext": "At the left and the right bank of each transect, lay a pole about one meter long against the bank and read its angle from horizontal with a clinometer, in degrees. The value is the mean of the 22 readings.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.7 + }, + { + "x": 16.00602345466614, + "y": 0.7 + }, + { + "x": 22.227272987365723, + "y": 1.0 + }, + { + "x": 40.00227165222168, + "y": 1.0 + }, + { + "x": 46.22352118492127, + "y": 0.7 + }, + { + "x": 57.77727031707764, + "y": 0.3 + }, + { + "x": 75.5522689819336, + "y": 0.0 + } + ] + }, + "referenceN": 55, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level I ecoregion 9 (Great Plains) because this ecoregion has too few least-disturbed stations of its own. 55 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level I 9 (Great Plains), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level II, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 5.0, + 68.81818389892578 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l1", + "level": "l1", + "levelLabel": "Level I", + "regionCode": "9", + "regionName": "Great Plains", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 219, + "nComparable": 57, + "nUsable": 55, + "nLocal": 17, + "nHuc12": 50, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.872, + "supportedLevel": "l2", + "transferRisk": "moderate", + "transferNote": "55 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level I 9 (Great Plains), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level II, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 25, + "q25": 22.68181800842285, + "q50": 28.227272033691406, + "q75": 36.59090805053711 + }, + "discrimination": { + "aucRefVsPressure": 0.482, + "nRef": 55, + "nPressure": 480, + "medianRefIndex": 0.954, + "medianPressureIndex": 1.0, + "aucRvsIm": 0.561, + "nR": 63, + "nIm": 76, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "sediment-continuity", + "functionName": "Sediment continuity", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-lrbs-use", + "metricName": "Relative bed stability", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Relative bed stability (log)", + "howToMeasure": "Log relative bed stability; departure from the reference core in EITHER direction departs from reference (negative excess fines, positive an armored, sediment-starved bed, the classic below-impoundment failure). The pilot's rising direction scored armored beds 1.0 and left Sediment continuity blind to its textbook failure mode. Two-sided form is an owner decision at the adversarial review gate, 2026-08-21.", + "methodContext": "Computed, not read in the field. It is the base 10 logarithm of the ratio of the geometric mean particle diameter to the largest diameter the bankfull flow can move, from the particle count, reach slope, bankfull depth, wood tally and residual pools, with the NRSA physical habitat calculations.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": -4.335484743118286, + "y": 0.0 + }, + { + "x": -3.204684615135193, + "y": 0.3 + }, + { + "x": -2.469664531946182, + "y": 0.7 + }, + { + "x": -2.0738844871520996, + "y": 1.0 + }, + { + "x": -0.9430843591690063, + "y": 1.0 + }, + { + "x": -0.5473043143749237, + "y": 0.7 + }, + { + "x": 0.18771576881408691, + "y": 0.3 + }, + { + "x": 1.3185158967971802, + "y": 0.0 + } + ] + }, + "referenceN": 57, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level I ecoregion 9 (Great Plains) because this ecoregion has too few least-disturbed stations of its own. 57 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level I 9 (Great Plains), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is high and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + -3.121997356414795, + 0.7613613605499268 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l1", + "level": "l1", + "levelLabel": "Level I", + "regionCode": "9", + "regionName": "Great Plains", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 219, + "nComparable": 57, + "nUsable": 57, + "nLocal": 17, + "nHuc12": 52, + "disposition": "adequate", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.872, + "supportedLevel": "l3", + "transferRisk": "high", + "transferNote": "57 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level I 9 (Great Plains), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is high and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": -1.7022906243801117, + "q50": -1.4156545996665955, + "q75": -0.7455312311649323 + }, + "stratifier": { + "key": "NhdDrainageAreaClass", + "variable": "drainage_area_sqkm", + "units": "km2", + "source": "NHDPlus V2 total drainage area", + "breaks": [ + 10.0, + 100.0 + ], + "right": true, + "classes": [ + { + "key": "le_10", + "label": "Headwater (10 km2 and under)", + "hasCurve": false, + "n": 1 + }, + { + "key": "10_to_100", + "label": "Small stream (10 to 100 km2)", + "hasCurve": true, + "n": 25 + }, + { + "key": "gt_100", + "label": "Large stream (over 100 km2)", + "hasCurve": true, + "n": 31 + } + ], + "registryVersion": 1, + "status": "accept" + }, + "discrimination": { + "aucRefVsPressure": 0.515, + "nRef": 57, + "nPressure": 552, + "medianRefIndex": 0.995, + "medianPressureIndex": 0.95, + "aucRvsIm": 0.373, + "nR": 66, + "nIm": 86, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "curveLayers": [ + { + "stratum": "", + "points": [ + { + "x": -4.335484743118286, + "y": 0.0 + }, + { + "x": -3.204684615135193, + "y": 0.3 + }, + { + "x": -2.469664531946182, + "y": 0.7 + }, + { + "x": -2.0738844871520996, + "y": 1.0 + }, + { + "x": -0.9430843591690063, + "y": 1.0 + }, + { + "x": -0.5473043143749237, + "y": 0.7 + }, + { + "x": 0.18771576881408691, + "y": 0.3 + }, + { + "x": 1.3185158967971802, + "y": 0.0 + } + ] + }, + { + "stratum": "10_to_100", + "points": [ + { + "x": -5.096640467643738, + "y": 0.0 + }, + { + "x": -3.604493200778961, + "y": 0.3 + }, + { + "x": -2.6345974773168566, + "y": 0.7 + }, + { + "x": -2.1123459339141846, + "y": 1.0 + }, + { + "x": -0.620198667049408, + "y": 1.0 + }, + { + "x": -0.09794712364673619, + "y": 0.7 + }, + { + "x": 0.8719485998153687, + "y": 0.3 + }, + { + "x": 2.3640958666801453, + "y": 0.0 + } + ] + }, + { + "stratum": "gt_100", + "points": [ + { + "x": -3.8779858350753784, + "y": 0.0 + }, + { + "x": -2.94109770655632, + "y": 0.3 + }, + { + "x": -2.3321204230189325, + "y": 0.7 + }, + { + "x": -2.004209578037262, + "y": 1.0 + }, + { + "x": -1.0673214495182037, + "y": 1.0 + }, + { + "x": -0.7394106045365334, + "y": 0.7 + }, + { + "x": -0.1304333209991455, + "y": 0.3 + }, + { + "x": 0.8064548075199127, + "y": 0.0 + } + ] + } + ], + "activeStratum": "", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-pct-safn", + "metricName": "Sand + fines", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Sand + fines (%)", + "howToMeasure": "Percent sand and fines; higher indicates fine-sediment loading (worse).", + "methodContext": "Record the size class of the particle at five evenly spaced points across each of the 11 transects and the 10 cross-sections midway between them (105 particles). The value is the percent of particles that are sand or finer.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 24.761905670166016, + "y": 1.0 + }, + { + "x": 43.80952453613281, + "y": 1.0 + }, + { + "x": 81.9047622680664, + "y": 0.7 + }, + { + "x": 100.0, + "y": 0.0 + } + ] + }, + "referenceN": 27, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 9.2 (Temperate Prairies) because this ecoregion has too few least-disturbed stations of its own. 27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 24.761905670166016, + 100.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "9.2", + "regionName": "Temperate Prairies", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 35, + "nComparable": 27, + "nUsable": 27, + "nLocal": 17, + "nHuc12": 23, + "disposition": "adequate", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.872, + "supportedLevel": "l2", + "transferRisk": "low", + "transferNote": "27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 55.9523811340332, + "q50": 80.0, + "q75": 95.0 + }, + "discrimination": { + "aucRefVsPressure": 0.621, + "nRef": 27, + "nPressure": 199, + "medianRefIndex": 0.829, + "medianPressureIndex": 0.708, + "aucRvsIm": null, + "nR": 4, + "nIm": 25, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "bed-composition-bedform-dynamics", + "functionName": "Bed composition and bedform dynamics", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-lsub-dmm", + "metricName": "Substrate size", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Substrate size (log mm)", + "howToMeasure": "Log mean substrate diameter; coarser substrate generally better, but valley-type dependent.", + "methodContext": "From the same 105-particle size class count as sand and fines. The value is the base 10 logarithm of the geometric mean particle diameter in millimeters, computed from the size classes with the NRSA physical habitat calculations.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": -2.9022344052791595, + "y": 0.0 + }, + { + "x": -1.9477725327014923, + "y": 0.3 + }, + { + "x": -0.5160797238349915, + "y": 0.7 + }, + { + "x": 0.4383821487426758, + "y": 1.0 + }, + { + "x": 0.9156130850315094, + "y": 1.0 + } + ] + }, + "referenceN": 17, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 17 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + -2.110924482345581, + 1.062111735343933 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local_relaxed", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "47", + "regionName": "Western Corn Belt Plains", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 17, + "nComparable": 17, + "nUsable": 17, + "nLocal": 17, + "nHuc12": 15, + "disposition": "exploratory", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.872, + "supportedLevel": "l2", + "transferRisk": "none", + "transferNote": "17 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) of this ecoregion.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": -0.5506653487682343, + "q50": -0.3756772130727768, + "q75": 0.30157695710659027 + }, + "discrimination": { + "aucRefVsPressure": 0.641, + "nRef": 17, + "nPressure": 103, + "medianRefIndex": 0.881, + "medianPressureIndex": 0.717, + "aucRvsIm": null, + "nR": 0, + "nIm": 12, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xembed", + "metricName": "Embeddedness", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Embeddedness (%)", + "howToMeasure": "Percent embeddedness; higher means interstitial spaces filled with fines (worse).", + "methodContext": "At five evenly spaced points across each of the 11 transects, estimate how much of the particle under the point is buried in sand and finer sediment, in percent. Record the 55 estimates. The value is their mean.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 51.18181228637695, + "y": 1.0 + }, + { + "x": 64.90908813476562, + "y": 1.0 + }, + { + "x": 92.36363983154297, + "y": 0.7 + }, + { + "x": 100.0, + "y": 0.0 + } + ] + }, + "referenceN": 17, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 17 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 46.181819915771484, + 99.81818389892578 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local_relaxed", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "47", + "regionName": "Western Corn Belt Plains", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 17, + "nComparable": 17, + "nUsable": 17, + "nLocal": 17, + "nHuc12": 15, + "disposition": "exploratory", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.872, + "supportedLevel": "l2", + "transferRisk": "none", + "transferNote": "17 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) of this ecoregion.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 25, + "q25": 67.2727279663086, + "q50": 90.54545593261719, + "q75": 96.36363983154297 + }, + "discrimination": { + "aucRefVsPressure": 0.611, + "nRef": 17, + "nPressure": 89, + "medianRefIndex": 0.822, + "medianPressureIndex": 0.71, + "aucRvsIm": null, + "nR": 0, + "nIm": 10, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "light-thermal-regime", + "functionName": "Light & thermal regime", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-chem-chla", + "metricName": "Chlorophyll a", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Chlorophyll a (ug/L)", + "howToMeasure": "Chlorophyll a; higher indicates algal enrichment/eutrophication (worse).", + "methodContext": "Chlorophyll a of the water column in micrograms per liter, from a 2 L grab sample taken at mid-channel at the X-site in an amber bottle, filtered and analyzed in a laboratory.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 3.4259999990463257, + "y": 1.0 + }, + { + "x": 12.690000057220459, + "y": 0.7 + }, + { + "x": 26.58600014448166, + "y": 0.3 + }, + { + "x": 35.85000020265579, + "y": 0.0 + } + ] + }, + "referenceN": 27, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 9.2 (Temperate Prairies) because this ecoregion has too few least-disturbed stations of its own. 27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.53 of 17 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.53 of evaluation regions; two thirds required; net optimism +0.17, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.6299999952316284, + 30.8799991607666 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "9.2", + "regionName": "Temperate Prairies", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 35, + "nComparable": 27, + "nUsable": 27, + "nLocal": 17, + "nHuc12": 23, + "disposition": "adequate", + "family": "water_chemistry", + "covariates": [ + "bfiws", + "runoffws", + "lith_group" + ], + "selfCoverage": 0.881, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.53 of 17 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5294, + "net_opt": 0.1681, + "n_cells": 17, + "c1_share": 0.2941 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 3.359000027179718, + "q50": 7.6579999923706055, + "q75": 15.042500257492065 + }, + "discrimination": { + "aucRefVsPressure": 0.583, + "nRef": 27, + "nPressure": 200, + "medianRefIndex": 0.827, + "medianPressureIndex": 0.801, + "aucRvsIm": null, + "nR": 4, + "nIm": 25, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5294, + "net_opt": 0.1681, + "n_cells": 17, + "c1_share": 0.2941 + }, + "transferNote": "27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.53 of 17 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xcdenmid", + "metricName": "Canopy density, mid-channel", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Canopy density, mid-channel (%)", + "howToMeasure": "Mid-channel canopy density; higher shading generally better for thermal/light regime.", + "methodContext": "At mid-channel on each transect, read a convex spherical densiometer facing upstream, downstream, left and right, counting the covered points of 17. The value is the mean of the 44 readings as a percent.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 12.805576596941266, + "y": 0.3 + }, + { + "x": 29.87967872619629, + "y": 0.7 + }, + { + "x": 75.1336898803711, + "y": 1.0 + }, + { + "x": 97.7606954574585, + "y": 1.0 + } + ] + }, + "referenceN": 30, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 9.2 (Temperate Prairies) because this ecoregion has too few least-disturbed stations of its own. 30 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.56 of evaluation regions; two thirds required; net optimism +0.17, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.8021390438079834, + 91.71122741699219 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "9.2", + "regionName": "Temperate Prairies", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 35, + "nComparable": 30, + "nUsable": 30, + "nLocal": 17, + "nHuc12": 26, + "disposition": "adequate", + "family": "riparian", + "covariates": [ + "drainage_area_sqkm", + "precip8110ws" + ], + "selfCoverage": 0.936, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.1676, + "n_cells": 18, + "c1_share": 0.3889 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 25, + "q25": 12.032085418701172, + "q50": 37.29946517944336, + "q75": 69.91978454589844 + }, + "discrimination": { + "aucRefVsPressure": 0.57, + "nRef": 30, + "nPressure": 160, + "medianRefIndex": 0.763, + "medianPressureIndex": 0.746, + "aucRvsIm": null, + "nR": 4, + "nIm": 19, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.1676, + "n_cells": 18, + "c1_share": 0.3889 + }, + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "carbon-processing", + "functionName": "Carbon processing", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-phab-xcmgw", + "metricName": "Riparian veg cover, woody", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Riparian veg cover, woody (frac)", + "howToMeasure": "Riparian canopy plus mid-layer plus ground cover; higher is better.", + "methodContext": "In a 10 m by 10 m plot on each bank at each transect, estimate the areal cover class of woody vegetation in the canopy, the understory and the ground layer. The value is the summed woody cover of the three layers, averaged over the 22 plots, as a fraction.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.22840908382620131, + "y": 0.3 + }, + { + "x": 0.532954528927803, + "y": 0.7 + }, + { + "x": 1.0625, + "y": 1.0 + }, + { + "x": 1.3272727355360985, + "y": 1.0 + } + ] + }, + "referenceN": 30, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 9.2 (Temperate Prairies) because this ecoregion has too few least-disturbed stations of its own. 30 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.50 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.10, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.50 of evaluation regions; two thirds required; net optimism +0.10, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.05454545468091965, + 1.9920454025268555 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "9.2", + "regionName": "Temperate Prairies", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 35, + "nComparable": 30, + "nUsable": 30, + "nLocal": 17, + "nHuc12": 26, + "disposition": "adequate", + "family": "riparian", + "covariates": [ + "drainage_area_sqkm", + "precip8110ws" + ], + "selfCoverage": 0.936, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.50 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.10, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5, + "net_opt": 0.0977, + "n_cells": 18, + "c1_share": 0.5 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 0.3181818164885044, + "q50": 0.6238636374473572, + "q75": 0.9852273017168045 + }, + "discrimination": { + "aucRefVsPressure": 0.625, + "nRef": 30, + "nPressure": 199, + "medianRefIndex": 0.825, + "medianPressureIndex": 0.721, + "aucRvsIm": null, + "nR": 4, + "nIm": 25, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5, + "net_opt": 0.0977, + "n_cells": 18, + "c1_share": 0.5 + }, + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.50 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.10, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "nutrient-cycling", + "functionName": "Nutrient cycling", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-chem-ntl", + "metricName": "Total nitrogen", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2018-19 regional total nitrogen thresholds, NARS-9 region TPL", + "xLabel": "Total nitrogen (mg N/L)", + "howToMeasure": "Total nitrogen; higher indicates nutrient enrichment (worse). The total fraction, reported in every NRSA cycle, and the fraction published nitrogen criteria are written against.", + "methodContext": "Total nitrogen in milligrams of nitrogen per liter, laboratory analysis of the unfiltered mid-channel grab sample from the X-site, kept on ice.", + "curve": { + "layerName": "USEPA NRSA 2018-19 regional total nitrogen thresholds, NARS-9 region TPL", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 0.7005, + "y": 0.69 + }, + { + "x": 1.274, + "y": 0.39 + }, + { + "x": 2.01955, + "y": 0.0 + } + ] + }, + "curveCaveats": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ], + "confidenceLabel": "Published benchmark", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "NRSA 2018-19 regional total nitrogen thresholds, NARS-9 region TPL", + "easiMethod": "regional-nutrient-condition", + "region": "TPL", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "≤0.7 mg N/L" + }, + { + "rating": "Fair", + "label": ">0.7 to <1.274 mg N/L" + }, + { + "rating": "Poor", + "label": "≥1.274 mg N/L" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "nars-regions", + "text": "Ecoregions Used in the National Aquatic Resource Surveys" + } + ], + "limitations": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ] + }, + "referenceSupport": { + "status": "published", + "level": null, + "levelLabel": "", + "regionCode": "47", + "regionName": "Western Corn Belt Plains", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 0, + "nComparable": 0, + "nUsable": 0, + "nLocal": 0, + "nHuc12": 0, + "disposition": "exploratory", + "family": "water_chemistry", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Scored against a published criterion for NARS-9 region TPL rather than against stations of this ecoregion. Its breakpoints are 0.7 and 1.274 mg N/L. The criterion carries its own definition of reference, which need not match this assessment's.", + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 1.0115000158548355, + "q50": 2.025000035762787, + "q75": 3.4075000882148743 + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "publishedBenchmark": { + "benchmark": "Nutrient condition", + "methodKey": "regional-nutrient-condition", + "analyte": "total nitrogen", + "fraction": "total", + "citations": [ + "nrsa-2018-19", + "nars-regions", + "wqp" + ], + "sourceTier": "connected-nearby", + "confidence": "M/L", + "provisional": false, + "limitations": [ + "Nearby monitoring stations are not necessarily reach-specific.", + "Each station is reduced to a median before station medians are combined, preventing heavily sampled stations from dominating.", + "One analyte may produce a partial rating.", + "When observations are unavailable, the CHEM fallback represents landscape integrity rather than measured nutrient concentration." + ], + "unitConversion": "mg/L to mg N/L x1.0", + "region": "TPL" + }, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical" + }, + { + "metricId": "spring-chem-ptl", + "metricName": "Total phosphorus", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2018-19 regional total phosphorus thresholds, NARS-9 region TPL", + "xLabel": "Total phosphorus (ug/L)", + "howToMeasure": "Total phosphorus; higher indicates nutrient enrichment (worse).", + "methodContext": "Total phosphorus in micrograms per liter, laboratory analysis of the mid-channel grab sample from the X-site, kept on ice.", + "curve": { + "layerName": "USEPA NRSA 2018-19 regional total phosphorus thresholds, NARS-9 region TPL", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 88.65, + "y": 0.69 + }, + { + "x": 143.0, + "y": 0.39 + }, + { + "x": 213.655, + "y": 0.0 + } + ] + }, + "curveCaveats": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ], + "confidenceLabel": "Published benchmark", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "NRSA 2018-19 regional total phosphorus thresholds, NARS-9 region TPL", + "easiMethod": "regional-nutrient-condition", + "region": "TPL", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "≤88.6 ug/L" + }, + { + "rating": "Fair", + "label": ">88.6 to <143 ug/L" + }, + { + "rating": "Poor", + "label": "≥143 ug/L" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "nars-regions", + "text": "Ecoregions Used in the National Aquatic Resource Surveys" + } + ], + "limitations": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ] + }, + "referenceSupport": { + "status": "published", + "level": null, + "levelLabel": "", + "regionCode": "47", + "regionName": "Western Corn Belt Plains", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 0, + "nComparable": 0, + "nUsable": 0, + "nLocal": 0, + "nHuc12": 0, + "disposition": "exploratory", + "family": "water_chemistry", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Scored against a published criterion for NARS-9 region TPL rather than against stations of this ecoregion. Its breakpoints are 88.6 and 143 ug/L. The criterion carries its own definition of reference, which need not match this assessment's.", + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 122.08099937438965, + "q50": 178.0, + "q75": 300.7832489013672 + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "publishedBenchmark": { + "benchmark": "Nutrient condition", + "methodKey": "regional-nutrient-condition", + "analyte": "total phosphorus", + "fraction": "total", + "citations": [ + "nrsa-2018-19", + "nars-regions", + "wqp" + ], + "sourceTier": "connected-nearby", + "confidence": "M/L", + "provisional": false, + "limitations": [ + "Nearby monitoring stations are not necessarily reach-specific.", + "Each station is reduced to a median before station medians are combined, preventing heavily sampled stations from dominating.", + "One analyte may produce a partial rating.", + "When observations are unavailable, the CHEM fallback represents landscape integrity rather than measured nutrient concentration." + ], + "unitConversion": "mg/L to ug/L x1000.0", + "region": "TPL" + }, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "water-soil-quality", + "functionName": "Water & soil quality", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-chem-turb", + "metricName": "Turbidity", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Turbidity (NTU)", + "howToMeasure": "Turbidity; higher indicates more suspended sediment (worse).", + "methodContext": "Turbidity in nephelometric turbidity units, laboratory analysis of the mid-channel grab sample from the X-site. Sample before anyone walks the channel upstream.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 6.03000020980835, + "y": 1.0 + }, + { + "x": 22.600000381469727, + "y": 0.7 + }, + { + "x": 47.45500063896179, + "y": 0.3 + }, + { + "x": 64.02500081062317, + "y": 0.0 + } + ] + }, + "referenceN": 17, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 17 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 1.5, + 101.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local_relaxed", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "47", + "regionName": "Western Corn Belt Plains", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 17, + "nComparable": 17, + "nUsable": 17, + "nLocal": 17, + "nHuc12": 15, + "disposition": "exploratory", + "family": "water_chemistry", + "covariates": [ + "bfiws", + "runoffws", + "lith_group" + ], + "selfCoverage": 0.881, + "supportedLevel": "l2", + "transferRisk": "none", + "transferNote": "17 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) of this ecoregion.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 5.1250001192092896, + "q50": 9.0, + "q75": 13.115000247955322 + }, + "discrimination": { + "aucRefVsPressure": 0.466, + "nRef": 17, + "nPressure": 104, + "medianRefIndex": 0.884, + "medianPressureIndex": 0.904, + "aucRvsIm": null, + "nR": 0, + "nIm": 12, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-chem-cond", + "metricName": "Specific conductivity", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2018-19 specific conductance benchmarks, NARS-9 region TPL", + "xLabel": "Specific conductivity (uS/cm)", + "howToMeasure": "Specific conductance; higher indicates ionic disturbance (worse).", + "methodContext": "Specific conductance in microsiemens per centimeter. NRSA reports the laboratory value of a grab sample taken at mid-channel at the X-site (the center of the reach). A calibrated multi-parameter meter reads the same quantity in the stream at that point.", + "curve": { + "layerName": "USEPA NRSA 2018-19 specific conductance benchmarks, NARS-9 region TPL", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 1000.05, + "y": 0.69 + }, + { + "x": 2000.05, + "y": 0.39 + }, + { + "x": 3300.05, + "y": 0.0 + } + ] + }, + "curveCaveats": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ], + "confidenceLabel": "Published benchmark", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "NRSA salinity condition benchmarks, specific conductance, NARS-9 region TPL", + "easiMethod": null, + "catalogEntry": "nrsa-2018-19-salinity-conductivity", + "region": "TPL", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "≤1000 uS/cm" + }, + { + "rating": "Fair", + "label": ">1000 to ≤2000 uS/cm" + }, + { + "rating": "Poor", + "label": ">2000 uS/cm" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "nars-regions", + "text": "Ecoregions Used in the National Aquatic Resource Surveys" + } + ], + "limitations": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "The benchmarks are fixed category boundaries chosen by EPA, 500 and 1000 microsiemens per centimetre in six regions and 1000 and 2000 in the Northern, Southern and Temperate Plains, not percentiles of a reference distribution, and they have not changed since the 2008-09 survey.", + "Specific conductance carries natural geology and climate as well as disturbance, so a naturally saline or calcareous stream reads Fair or Poor against these benchmarks without being degraded." + ] + }, + "referenceSupport": { + "status": "published", + "level": null, + "levelLabel": "", + "regionCode": "47", + "regionName": "Western Corn Belt Plains", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 0, + "nComparable": 0, + "nUsable": 0, + "nLocal": 0, + "nHuc12": 0, + "disposition": "exploratory", + "family": "water_chemistry", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Scored against a published criterion for NARS-9 region TPL rather than against stations of this ecoregion. Its breakpoints are 1000 and 2000 uS/cm. The criterion carries its own definition of reference, which need not match this assessment's.", + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 521.0500030517578, + "q50": 615.5, + "q75": 774.4499816894531 + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "publishedBenchmark": { + "benchmark": "NRSA salinity condition benchmarks, specific conductance", + "methodKey": null, + "catalogEntry": "nrsa-2018-19-salinity-conductivity", + "analyte": "specific conductance", + "fraction": "total", + "citations": [ + "nrsa-2018-19", + "nars-regions" + ], + "sourceTier": "epa-national-survey-benchmark", + "confidence": "M", + "provisional": false, + "limitations": [ + "The benchmarks are fixed category boundaries chosen by EPA, 500 and 1000 microsiemens per centimetre in six regions and 1000 and 2000 in the Northern, Southern and Temperate Plains, not percentiles of a reference distribution, and they have not changed since the 2008-09 survey.", + "Specific conductance carries natural geology and climate as well as disturbance, so a naturally saline or calcareous stream reads Fair or Poor against these benchmarks without being degraded." + ], + "unitConversion": "uS/cm to uS/cm x1.0", + "thresholdsSource": { + "document": "National Rivers and Streams Assessment 2018-2019 Technical Support Document, Version 1.1, EPA 841-R-22-005 (November 2023, updated September 2024)", + "table": "Table 7-1. Nutrient and Salinity Category Benchmarks for NRSA Assessment (Salinity as Conductivity, Good-Fair and Fair-Poor)", + "page": 93, + "url": "https://www.epa.gov/system/files/documents/2024-12/nrsa-2018-19-tsd-final-11252024.pdf" + }, + "verification": { + "epaClassColumn": "SAL_COND", + "checkedOn": "2026-09-28", + "n": 3702, + "agree": 3702, + "share": 1.0 + }, + "region": "TPL" + }, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "habitat-provision", + "functionName": "Habitat provision", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-phab-xfc-nat", + "metricName": "Natural fish cover", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Natural fish cover (frac)", + "howToMeasure": "Natural fish cover; higher is better.", + "methodContext": "In the 10 m of channel centered on each transect, estimate the areal cover class of each fish cover type on the form (wood, brush, overhanging vegetation, undercut banks, boulders and the rest). The value is the summed areal cover of the types that are not man-made, averaged over the transects.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.051623376086354256, + "y": 0.3 + }, + { + "x": 0.12045454420149326, + "y": 0.7 + }, + { + "x": 0.2721590921282768, + "y": 1.0 + }, + { + "x": 0.3480113660916686, + "y": 1.0 + } + ] + }, + "referenceN": 30, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 9.2 (Temperate Prairies) because this ecoregion has too few least-disturbed stations of its own. 30 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.61 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.15, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.61 of evaluation regions; two thirds required; net optimism +0.15, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.07727272808551788, + 0.7318181991577148 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "9.2", + "regionName": "Temperate Prairies", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 35, + "nComparable": 30, + "nUsable": 30, + "nLocal": 17, + "nHuc12": 26, + "disposition": "adequate", + "family": "riparian", + "covariates": [ + "drainage_area_sqkm", + "precip8110ws" + ], + "selfCoverage": 0.936, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.61 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.15, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6111, + "net_opt": 0.1469, + "n_cells": 18, + "c1_share": 0.3889 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 0.1147727258503437, + "q50": 0.20749999582767487, + "q75": 0.3528409078717232 + }, + "discrimination": { + "aucRefVsPressure": 0.498, + "nRef": 30, + "nPressure": 199, + "medianRefIndex": 0.839, + "medianPressureIndex": 0.848, + "aucRvsIm": null, + "nR": 4, + "nIm": 25, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6111, + "net_opt": 0.1469, + "n_cells": 18, + "c1_share": 0.3889 + }, + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.61 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.15, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "population-support", + "functionName": "Population support", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-fish-nat-totlntax", + "metricName": "Native fish taxa richness", + "inputType": "count", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Native fish taxa richness", + "howToMeasure": "Native fish taxa richness; higher is better.", + "methodContext": "Electrofish the sampling reach in an upstream direction, working every habitat between the transects, and identify and count every fish. The value is the number of native taxa.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 3.0, + "y": 0.3 + }, + { + "x": 7.0, + "y": 0.7 + }, + { + "x": 14.5, + "y": 1.0 + }, + { + "x": 18.25, + "y": 1.0 + } + ] + }, + "referenceN": 63, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from NARS-9 region ecoregion TPL because this ecoregion has too few least-disturbed stations of its own. 63 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from NARS-9 region TPL, 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. The national scale analysis supports this metric at Level II, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 1.0, + 26.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "TPL", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 83, + "nComparable": 64, + "nUsable": 63, + "nLocal": 17, + "nHuc12": 57, + "disposition": "adequate", + "family": "biology", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "tmean8110ws" + ], + "selfCoverage": 0.927, + "supportedLevel": "l2", + "transferRisk": "moderate", + "transferNote": "63 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from NARS-9 region TPL, 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. The national scale analysis supports this metric at Level II, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 27, + "q25": 6.5, + "q50": 12.0, + "q75": 14.0 + }, + "discrimination": { + "aucRefVsPressure": 0.468, + "nRef": 63, + "nPressure": 347, + "medianRefIndex": 0.855, + "medianPressureIndex": 0.86, + "aucRvsIm": 0.857, + "nR": 6, + "nIm": 32, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-bent-totlntax", + "metricName": "Benthic total taxa richness", + "inputType": "count", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Benthic total taxa richness", + "howToMeasure": "Total benthic taxa richness; higher is better.", + "methodContext": "From the same 11-transect composite D-frame net sample (500 micrometer mesh) and laboratory subsample. The value is the total number of taxa.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 11.571428571428571, + "y": 0.3 + }, + { + "x": 27.0, + "y": 0.7 + }, + { + "x": 42.75, + "y": 1.0 + }, + { + "x": 50.625, + "y": 1.0 + } + ] + }, + "referenceN": 34, + "curveCaveats": [ + "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + ], + "confidenceLabel": "Low", + "confidenceTotal": 50.2, + "criteriaBasis": "reference", + "referenceSupport": { + "status": "national", + "level": null, + "levelLabel": "", + "regionCode": "national", + "regionName": "National least-disturbed pool", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 270, + "nComparable": 34, + "nUsable": 34, + "nLocal": 0, + "nHuc12": 31, + "disposition": "adequate", + "family": "biology", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "moderate", + "transferNote": "34 least-disturbed stations from the national pool whose natural setting falls inside this ecoregion's comparability envelope, none inside this ecoregion. Every donor drains to this ecoregion's faunal province.", + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 21.75, + "q50": 25.5, + "q75": 29.25 + }, + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it.", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "community-dynamics", + "functionName": "Community dynamics", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-bent-ept-ntax", + "metricName": "EPT taxa richness", + "inputType": "count", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "EPT taxa richness", + "howToMeasure": "EPT (mayfly/stonefly/caddisfly) taxa richness; more sensitive taxa indicate better condition.", + "methodContext": "Collect one D-frame net sample (500 micrometer mesh) one meter downstream of each of the 11 transects at the assigned left, center or right station, and composite them. A laboratory identifies a fixed count subsample. The value is the number of mayfly, stonefly and caddisfly taxa.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 1.5, + "y": 0.3 + }, + { + "x": 3.5, + "y": 0.7 + }, + { + "x": 8.5, + "y": 1.0 + }, + { + "x": 11.0, + "y": 1.0 + } + ] + }, + "referenceN": 27, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 9.2 (Temperate Prairies) because this ecoregion has too few least-disturbed stations of its own. 27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.50 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.01, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.50 of evaluation regions; two thirds required); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 1.0, + 17.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "9.2", + "regionName": "Temperate Prairies", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 77.37 percent, the 90th percentile at EPA's reference sites of the NARS-9 region)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 77.37, + "agricultureRule": "epa_reference_range", + "nPool": 35, + "nComparable": 27, + "nUsable": 27, + "nLocal": 17, + "nHuc12": 23, + "disposition": "adequate", + "family": "biology", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "tmean8110ws" + ], + "selfCoverage": 0.927, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.50 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.01, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5, + "net_opt": 0.0143, + "n_cells": 18, + "c1_share": 0.2222 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 3.0, + "q50": 5.0, + "q75": 8.0 + }, + "discrimination": { + "aucRefVsPressure": 0.589, + "nRef": 27, + "nPressure": 200, + "medianRefIndex": 0.85, + "medianPressureIndex": 0.79, + "aucRvsIm": null, + "nR": 4, + "nIm": 25, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5, + "net_opt": 0.0143, + "n_cells": 18, + "c1_share": 0.2222 + }, + "transferNote": "27 stations passing the regional least-disturbed screen (watershed agriculture up to 77.37 percent, the 90th percentile at EPA's NRSA reference sites in NARS-9 region TPL, with the relaxed tier's other limits) from Level II 9.2 (Temperate Prairies), 17 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.50 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.01, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-bent-hprime", + "metricName": "Shannon diversity (H')", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Shannon diversity (H')", + "howToMeasure": "Benthic Shannon diversity; higher diversity indicates better condition.", + "methodContext": "From the same 11-transect composite D-frame net sample (500 micrometer mesh) and laboratory subsample. The value is the Shannon diversity of the taxa counted.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 47), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.9953571132251194, + "y": 0.3 + }, + { + "x": 2.322499930858612, + "y": 0.7 + }, + { + "x": 2.759999990463257, + "y": 1.0 + }, + { + "x": 2.9787500202655792, + "y": 1.0 + } + ] + }, + "referenceN": 34, + "curveCaveats": [ + "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + ], + "confidenceLabel": "Low", + "confidenceTotal": 50.2, + "criteriaBasis": "reference", + "referenceSupport": { + "status": "national", + "level": null, + "levelLabel": "", + "regionCode": "national", + "regionName": "National least-disturbed pool", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 270, + "nComparable": 34, + "nUsable": 34, + "nLocal": 0, + "nHuc12": 31, + "disposition": "adequate", + "family": "biology", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "moderate", + "transferNote": "34 least-disturbed stations from the national pool whose natural setting falls inside this ecoregion's comparability envelope, none inside this ecoregion. Every donor drains to this ecoregion's faunal province.", + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 28, + "q25": 2.057499945163727, + "q50": 2.409999966621399, + "q75": 2.572499930858612 + }, + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it.", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "watershed-connectivity", + "functionName": "Watershed connectivity", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-nid-dams-1mi", + "metricName": "Mapped dams within one mile", + "inputType": "count", + "sourceCitation": "EASI fixed criteria, Nearby dam-proximity proxy", + "xLabel": "Mapped dams within one mile (dams)", + "howToMeasure": "Mapped dams within one mile is scored on the same fixed criteria EASI uses in every region. 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Note in the field any barrier the inventory does not show.", + "curve": { + "layerName": "EASI fixed criteria, Nearby dam-proximity proxy", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 1.0, + "y": 0.545 + }, + { + "x": 2.0, + "y": 0.195 + }, + { + "x": 3.0, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Nearby dam-proximity proxy", + "easiMethod": "nearby-dam-proximity", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "0 mapped dams" + }, + { + "rating": "Fair", + "label": "1 mapped dam" + }, + { + "rating": "Poor", + "label": "≥2 mapped dams" + } + ], + "citations": [ + { + "key": "nid", + "text": "USACE National Inventory of Dams" + } + ], + "limitations": [ + "A mapped dam count is a proximity screen and cannot confirm passability or the severity of a barrier.", + "NID carries about 91,000 regulated dams while the National Aquatic Barrier Inventory maps over 500,000 barriers of all sizes, so zero mapped dams is frequently a false negative for passage.", + "Query failure is unscored, not Good." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. 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109, + "nCurvesLocal": 0, + "nCurvesBorrowed": 18, + "nCurvesRegionalScreen": 3, + "nCurvesCarried": 0, + "nCurvesFlagged": 10, + "nCurvesEasiScreening": 0, + "nWithheld": 2, + "curvesByBasis": { + "regional-reference": 21, + "national-reference": 5, + "published-benchmark": 5 + }, + "statement": "Reference condition is set by a fixed landscape-pressure screen, never by a score. 3 curves are fitted to this ecoregion's own streams under the documented regional screen, which relaxes agriculture only. 18 borrow comparable least-disturbed stations from a wider region, stating the region and the transfer risk. 5 carry the national reference label: reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own. 5 carry the published benchmark label: scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's. 10 rest on a flagged transfer: a comparable least-disturbed pool the recovery test did not confirm for this ecoregion, used because no validated source supports the metric here, with transfer risk unvalidated and confidence capped. A metric that no basis supports is not scored, and the function it would have scored is reported as unassessed.", + "nHeldForReview": 0 + }, + "insufficientReferenceSupport": [ + { + "metricId": "spring-chem-ph", + "metricKey": "chem_PH", + "metricName": "pH", + "units": "Std. Units", + "functions": [ + { + "functionId": "water-soil-quality", + "functionName": "Water and soil quality" + } + ], + "functionId": "water-soil-quality", + "reason": "measurement-precision-floor", + "statement": "Measurement-precision floor. The Functioning core of this two-sided curve spans 0.285 Std. Units (8.14 to 8.42 Std. Units at n = 26), narrower than 0.4 Std. Units, 2 times the metric's documented measurement precision of 0.2 Std. Units, so band assignments inside it would present measurement noise as condition classes and the metric is withheld at the build under rule CURVE-09. No curve was built and the metric is not scored.", + "levelsTried": [ + { + "level": "l3", + "region_code": "47", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l3", + "region_code": "47", + "n_pool": 17, + "n_comparable": 17, + "n_usable": 16, + "n_local": 16 + }, + { + "level": "l2", + "region_code": "9.2", + "n_pool": 35, + "n_comparable": 27, + "n_usable": 26, + "n_local": 16 + } + ], + "rungsTried": [], + "rule": "CURVE-09", + "detail": { + "precision_sd": 0.2, + "core_multiple": 2.0, + "floor_width": 0.4, + "functioning_core_width": 0.2847504378000014, + "functioning_min": 8.1388746619, + "functioning_max": 8.4236250997, + "units": "Std. Units", + "n_reference": 26 + } + }, + { + "metricId": "spring-phab-pct-fast", + "metricKey": "phab_PCT_FAST", + "metricName": "Fast-water / riffle habitat", + "units": "%", + "functions": [ + { + "functionId": "habitat-provision", + "functionName": "Habitat provision" + } + ], + "functionId": "habitat-provision", + "reason": "insufficient-reference-support", + "statement": "Insufficient reference support. No station pool, from this ecoregion's own least-disturbed streams or from a wider region under the regional screen, holds enough comparable stations with a value for this metric and passes acceptance. The local reference: 0 usable stations, below the floor of 10. This ecoregion under the regional screen: The curve on this pool would be the engine's fallback ramp: the pool's lower quartile sits at or below zero on a scale that cannot go negative (curve status degenerate_q25), and a fallback curve is refused under methodology 0.16 (owner decision D13). The Level II pool (9.2): The pool is not stable, since removing one station changes whether a valid curve can be built. The Level I pool (9): The curve on this pool would be the engine's fallback ramp: the pool's lower quartile sits at or below zero on a scale that cannot go negative (curve status degenerate_q25), and a fallback curve is refused under methodology 0.16 (owner decision D13). The NARS-9 pool (TPL): The curve on this pool would be the engine's fallback ramp: the pool's lower quartile sits at or below zero on a scale that cannot go negative (curve status degenerate_q25), and a fallback curve is refused under methodology 0.16 (owner decision D13). No other basis supports it either. National reference: 81 matched national donors, but the curve on this pool would be the engine's fallback ramp: the pool's lower quartile sits at or below zero on a scale that cannot go negative (curve status degenerate_q25), and a fallback curve is refused under methodology 0.16 (owner decision D13). 87 national donors inside the comparability envelope, but the curve on this pool would be the engine's fallback ramp: the pool's lower quartile sits at or below zero on a scale that cannot go negative (curve status degenerate_q25), and a fallback curve is refused under methodology 0.16 (owner decision D13). Modeled reference: A modeled specification for this metric passed the recovery test and waits for the owner's approval, so it is not used yet. Published benchmark: The published criteria STAF draws on include none for this metric. No curve was built and the metric is not scored.", + "levelsTried": [ + { + "level": "l3", + "region_code": "47", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l3", + "region_code": "47", + "n_pool": 17, + "n_comparable": 17, + "n_usable": 17, + "n_local": 17 + }, + { + "level": "l2", + "region_code": "9.2", + "n_pool": 35, + "n_comparable": 27, + "n_usable": 27, + "n_local": 17 + }, + { + "level": "l1", + "region_code": "9", + "n_pool": 219, + "n_comparable": 57, + "n_usable": 57, + "n_local": 17 + }, + { + "level": "nars9", + "region_code": "TPL", + "n_pool": 83, + "n_comparable": 46, + "n_usable": 46, + "n_local": 17 + } + ], + "rungsTried": [ + { + "rung": "REF-12", + "why": "81 matched national donors, but the curve on this pool would be the engine's fallback ramp: the pool's lower quartile sits at or below zero on a scale that cannot go negative (curve status degenerate_q25), and a fallback curve is refused under methodology 0.16 (owner decision D13). 87 national donors inside the comparability envelope, but the curve on this pool would be the engine's fallback ramp: the pool's lower quartile sits at or below zero on a scale that cannot go negative (curve status degenerate_q25), and a fallback curve is refused under methodology 0.16 (owner decision D13)." + }, + { + "rung": "REF-13", + "why": "A modeled specification for this metric passed the recovery test and waits for the owner's approval, so it is not used yet." + }, + { + "rung": "REF-14", + "why": "The published criteria STAF draws on include none for this metric.", + "condition": [ + "catalog", + "no entry" + ] + } + ] + } + ], + "contentDigest": "sha256:092d2889575f3acb05db781b0b33f88e0b11642276ae64635ee7c62ad87aaa1a", + "library": { + "libraryId": "western-corn-belt-plains", + "version": 1, + "updatedAt": "2026-09-30T07:05:37Z", + "author": "StreamCurves regional analysis (STAF)", + "revisionNotes": "Reference condition is the fixed landscape-pressure screen least-disturbed-v1 (strict), wadeable non-canal frame. 0 of 109 stations of this ecoregion pass. 0 reference curves use local stations, 18 borrow from a wider region, 5 metrics use fixed criteria, and 2 metrics are withheld for insufficient reference support. No station of this ecoregion passes the reference screen, so every reference curve here borrows its reference stations from a parent ecoregion.", + "region": { + "kind": "ecoregion", + "code": "47", + "name": "Western Corn Belt Plains" + }, + "contentDigest": "sha256:092d2889575f3acb05db781b0b33f88e0b11642276ae64635ee7c62ad87aaa1a", + "supersedesVersion": null + } +} diff --git a/library/western-corn-belt-plains-v1-calculator-eaff9aa7.eaff9aa790cb.xlsx b/library/western-corn-belt-plains-v1-calculator-eaff9aa7.eaff9aa790cb.xlsx new file mode 100644 index 0000000000000000000000000000000000000000..d461bc4a3a35e4362395568c741fcf95b02d8ed5 Binary files /dev/null and b/library/western-corn-belt-plains-v1-calculator-eaff9aa7.eaff9aa790cb.xlsx differ diff --git a/library/western-gulf-coastal-plain-v1-984bf1ac.deep.984bf1acad78.json b/library/western-gulf-coastal-plain-v1-984bf1ac.deep.984bf1acad78.json new file mode 100644 index 0000000000000000000000000000000000000000..8be5307cbe348a6d26b6a0b3fb1fbee39fd3d515 --- /dev/null +++ b/library/western-gulf-coastal-plain-v1-984bf1ac.deep.984bf1acad78.json @@ -0,0 +1,8946 @@ +{ + "schemaVersion": 1, + "tier": "detailed", + "assessmentId": "western-gulf-coastal-plain", + "assessmentName": "Western Gulf Coastal Plain reference assessment", + "stateCode": "", + "stateName": "", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "applicability": "Western Gulf Coastal Plain", + "metricsByFunction": [ + { + "functionId": "catchment-hydrology", + "functionName": "Catchment hydrology", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-pctimp2019ws", + "metricName": "Impervious surface", + "inputType": "proportion", + "sourceCitation": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "xLabel": "Impervious surface (%)", + "howToMeasure": "Impervious surface (%) is scored on the same fixed criteria EASI uses in every region. Good <10%, Fair 10-25%, Poor >25%.", + "methodContext": "Percent of the watershed in impervious surface. DEEP computes it for the delineated watershed. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 10.0, + "y": 0.69 + }, + { + "x": 25.005, + "y": 0.39 + }, + { + "x": 44.5115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Catchment hydrology (land-cover pressure)", + "easiMethod": "catchment-land-cover-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<10%" + }, + { + "rating": "Fair", + "label": "10-25%" + }, + { + "rating": "Poor", + "label": ">25%" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "schueler-1994", + "text": "Schueler 1994, The importance of imperviousness" + }, + { + "key": "allan-2004", + "text": "Allan 2004, Landscapes and riverscapes: the influence of land use on stream ecosystems" + }, + { + "key": "wang-1997", + "text": "Wang et al. 1997, Influences of watershed land use on habitat quality and biotic integrity in Wisconsin streams" + }, + { + "key": "king-2011", + "text": "King et al. 2011, Stream community thresholds at exceptionally low levels of catchment urbanization" + } + ], + "limitations": [ + "The worse input governs because hydrologic alteration through one pathway is not offset by low pressure in the other.", + "Agricultural bands are national screening tiers, not ecological criteria.", + "A result computed from one input is labeled partial.", + "Sensitive macroinvertebrate taxa decline well below the 10 percent impervious Good boundary (community thresholds near 0.5 to 2 percent), so a Good rating is not a no-effect finding (King et al. 2011)." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + }, + { + "metricId": "spring-pctag2019ws", + "metricName": "Agriculture, crop and hay", + "inputType": "proportion", + "sourceCitation": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "xLabel": "Agriculture, crop and hay (%)", + "howToMeasure": "Agriculture, crop and hay (%) is scored on the same fixed criteria EASI uses in every region. Good <30%, Fair 30-50%, Poor >50%.", + "methodContext": "Percent of the watershed in cultivated crops plus hay and pasture. DEEP computes it for the delineated watershed. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 30.0, + "y": 0.69 + }, + { + "x": 50.005, + "y": 0.39 + }, + { + "x": 76.0115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Catchment hydrology (land-cover pressure)", + "easiMethod": "catchment-land-cover-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<30%" + }, + { + "rating": "Fair", + "label": "30-50%" + }, + { + "rating": "Poor", + "label": ">50%" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "schueler-1994", + "text": "Schueler 1994, The importance of imperviousness" + }, + { + "key": "allan-2004", + "text": "Allan 2004, Landscapes and riverscapes: the influence of land use on stream ecosystems" + }, + { + "key": "wang-1997", + "text": "Wang et al. 1997, Influences of watershed land use on habitat quality and biotic integrity in Wisconsin streams" + }, + { + "key": "king-2011", + "text": "King et al. 2011, Stream community thresholds at exceptionally low levels of catchment urbanization" + } + ], + "limitations": [ + "The worse input governs because hydrologic alteration through one pathway is not offset by low pressure in the other.", + "Agricultural bands are national screening tiers, not ecological criteria.", + "A result computed from one input is labeled partial.", + "Sensitive macroinvertebrate taxa decline well below the 10 percent impervious Good boundary (community thresholds near 0.5 to 2 percent), so a Good rating is not a no-effect finding (King et al. 2011)." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "surface-water-storage", + "functionName": "Surface water storage", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-pctwet2019ws", + "metricName": "Wetland", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Wetland (%)", + "howToMeasure": "Watershed wetland (%), woody plus herbaceous, both classes required; wetlands store surface water and attenuate flow peaks. EASI scores Surface water storage on the same sum (method watershed-wetland-extent).", + "methodContext": "Percent of the watershed in woody plus herbaceous wetland (NLCD 2019). DEEP reads it from EPA StreamCat for the reach. Nothing is measured in the field.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 5.316428571428572, + "y": 0.3 + }, + { + "x": 12.405000000000001, + "y": 0.7 + }, + { + "x": 34.355000000000004, + "y": 1.0 + }, + { + "x": 45.330000000000005, + "y": 1.0 + } + ] + }, + "referenceN": 39, + "sampleDisposition": "adequate", + "metricRole": "landscape_expectation", + "curveCaveats": [ + "Wetland cover follows terrain: a steep watershed that never held wetland reads low on this curve without being degraded.", + "The reference stations for this curve were borrowed from NARS-9 region ecoregion CPL because this ecoregion has too few least-disturbed stations of its own. 39 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on hydraulic conductivity, precipitation, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.47 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.00, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.47 of evaluation regions; two thirds required); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.0, + 100.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "CPL", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 102, + "nComparable": 39, + "nUsable": 39, + "nLocal": 0, + "nHuc12": 38, + "disposition": "adequate", + "family": "hydrology", + "covariates": [ + "hydrlcondws", + "precip8110ws", + "lith_group" + ], + "selfCoverage": 0.857, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "39 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on hydraulic conductivity, precipitation, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.47 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.00, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.4737, + "net_opt": 0.0, + "n_cells": 19, + "c1_share": 0.2632 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 1.785, + "q50": 3.535, + "q75": 6.22 + }, + "discrimination": { + "aucRefVsPressure": 0.652, + "nRef": 39, + "nPressure": 260, + "medianRefIndex": 0.837, + "medianPressureIndex": 0.656, + "aucRvsIm": 0.431, + "nR": 18, + "nIm": 40, + "verdict": "discriminates" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.4737, + "net_opt": 0.0, + "n_cells": 19, + "c1_share": 0.2632 + }, + "transferNote": "39 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on hydraulic conductivity, precipitation, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.47 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.00, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydrology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "reach-inflow", + "functionName": "Reach inflow", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-rddensws", + "metricName": "Road density", + "inputType": "continuous", + "sourceCitation": "EASI fixed criteria, Road-density proxy for concentrated inflow pressure", + "xLabel": "Road density (km/sq km)", + "howToMeasure": "Road density (km/sq km) is scored on the same fixed criteria EASI uses in every region. Good <1 km/km², Fair 1-<3 km/km², Poor ≥3 km/km².", + "methodContext": "Road length per square kilometer of watershed. DEEP computes it for the delineated watershed. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Road-density proxy for concentrated inflow pressure", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 1.0, + "y": 0.69 + }, + { + "x": 3.0, + "y": 0.39 + }, + { + "x": 5.6, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Road-density proxy for concentrated inflow pressure", + "easiMethod": "road-density-inflow-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<1 km/km²" + }, + { + "rating": "Fair", + "label": "1-<3 km/km²" + }, + { + "rating": "Poor", + "label": "≥3 km/km²" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "usfs-wcf", + "text": "USDA Forest Service 2011, Watershed Condition Classification Technical Guide (FS-978)" + } + ], + "limitations": [ + "Road density does not count actual outfalls or establish whether runoff is treated.", + "The 1 km/km² breakpoint is a screening judgment.", + "USFS watershed-condition guidance classes road density more strictly (good under 1, impaired over 2.4 miles per square mile, about 0.62 and 1.49 km/km²), derived from salmonid watersheds. EASI keeps the NRSA-anchored national screen and discloses the stricter alternative." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "streamflow-regime", + "functionName": "Streamflow regime", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-bfiws", + "metricName": "Base flow index", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Base flow index (%)", + "howToMeasure": "Base-flow index (% of streamflow from baseflow); a higher baseflow share indicates a more stable, groundwater-supported flow regime. Moderate confidence: hydrogeology sets the baseline, so a naturally flashy till catchment reads low without being degraded (see the natural-context criterion below). Scored because flow alteration and withdrawal also move it.", + "methodContext": "Base flow index of the watershed, the percent of streamflow that comes from base flow (USGS base flow index grid). DEEP reads it from EPA StreamCat for the reach. Nothing is measured in the field.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 13.114414285714284, + "y": 0.3 + }, + { + "x": 30.600299999999997, + "y": 0.7 + }, + { + "x": 44.488550000000004, + "y": 1.0 + }, + { + "x": 51.432675, + "y": 1.0 + } + ] + }, + "referenceN": 39, + "sampleDisposition": "adequate", + "metricRole": "landscape_expectation", + "curveCaveats": [ + "Base-flow index is set largely by hydrogeology: a naturally flashy till catchment reads low on this curve without being degraded.", + "The reference stations for this curve were borrowed from NARS-9 region ecoregion CPL because this ecoregion has too few least-disturbed stations of its own. 39 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on hydraulic conductivity, precipitation, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.26 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.11, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.26 of evaluation regions; two thirds required; net optimism +0.11, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 23.4382, + 71.95 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "CPL", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 102, + "nComparable": 39, + "nUsable": 39, + "nLocal": 0, + "nHuc12": 38, + "disposition": "adequate", + "family": "hydrology", + "covariates": [ + "hydrlcondws", + "precip8110ws", + "lith_group" + ], + "selfCoverage": 0.857, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "39 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on hydraulic conductivity, precipitation, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.26 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.11, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.2632, + "net_opt": 0.1071, + "n_cells": 19, + "c1_share": 0.1053 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 12.607225, + "q50": 15.92475, + "q75": 21.7535 + }, + "discrimination": { + "aucRefVsPressure": 0.495, + "nRef": 39, + "nPressure": 260, + "medianRefIndex": 0.82, + "medianPressureIndex": 0.852, + "aucRvsIm": 0.59, + "nR": 18, + "nIm": 40, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.2632, + "net_opt": 0.1071, + "n_cells": 19, + "c1_share": 0.1053 + }, + "transferNote": "39 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on hydraulic conductivity, precipitation, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.26 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.11, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydrology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-dorws", + "metricName": "Degree of regulation", + "inputType": "continuous", + "sourceCitation": "EASI fixed criteria, Flow alteration (degree of regulation)", + "xLabel": "Degree of regulation (%)", + "howToMeasure": "Degree of regulation (%) is scored on the same fixed criteria EASI uses in every region. Good <2%, Fair 2-15%, Poor >15%.", + "methodContext": "Degree of regulation, the normal storage of upstream dams as a percent of mean annual runoff. DEEP reads both from EPA StreamCat for the reach. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Flow alteration (degree of regulation)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 2.0, + "y": 0.69 + }, + { + "x": 15.005, + "y": 0.39 + }, + { + "x": 31.9115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Flow alteration (degree of regulation)", + "easiMethod": "degree-of-regulation", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "<2%" + }, + { + "rating": "Fair", + "label": "2-15%" + }, + { + "rating": "Poor", + "label": ">15%" + } + ], + "citations": [ + { + "key": "streamcat", + "text": "EPA StreamCat Metrics and Definitions" + }, + { + "key": "lehner-2011", + "text": "Lehner et al. 2011, High-resolution mapping of the world's reservoirs and dams" + }, + { + "key": "grill-2019", + "text": "Grill et al. 2019, Mapping the world's free-flowing rivers" + } + ], + "limitations": [ + "Degree of regulation does not describe operating rules, diversions, seasonality, or dam location on the network.", + "Missing or non-positive runoff is not converted to zero and leaves the metric unscored." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "low-flow-baseflow-dynamics", + "functionName": "Low flow and baseflow dynamics", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-bfiws", + "metricName": "Base flow index", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Base flow index (%)", + "howToMeasure": "Base-flow index (% of streamflow from baseflow); a higher baseflow share indicates a more stable, groundwater-supported flow regime. Moderate confidence: hydrogeology sets the baseline, so a naturally flashy till catchment reads low without being degraded (see the natural-context criterion below). Scored because flow alteration and withdrawal also move it.", + "methodContext": "Base flow index of the watershed, the percent of streamflow that comes from base flow (USGS base flow index grid). DEEP reads it from EPA StreamCat for the reach. Nothing is measured in the field.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 13.114414285714284, + "y": 0.3 + }, + { + "x": 30.600299999999997, + "y": 0.7 + }, + { + "x": 44.488550000000004, + "y": 1.0 + }, + { + "x": 51.432675, + "y": 1.0 + } + ] + }, + "referenceN": 39, + "sampleDisposition": "adequate", + "metricRole": "landscape_expectation", + "curveCaveats": [ + "Base-flow index is set largely by hydrogeology: a naturally flashy till catchment reads low on this curve without being degraded.", + "The reference stations for this curve were borrowed from NARS-9 region ecoregion CPL because this ecoregion has too few least-disturbed stations of its own. 39 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on hydraulic conductivity, precipitation, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.26 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.11, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.26 of evaluation regions; two thirds required; net optimism +0.11, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 23.4382, + 71.95 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "CPL", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 102, + "nComparable": 39, + "nUsable": 39, + "nLocal": 0, + "nHuc12": 38, + "disposition": "adequate", + "family": "hydrology", + "covariates": [ + "hydrlcondws", + "precip8110ws", + "lith_group" + ], + "selfCoverage": 0.857, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "39 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on hydraulic conductivity, precipitation, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.26 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.11, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.2632, + "net_opt": 0.1071, + "n_cells": 19, + "c1_share": 0.1053 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 12.607225, + "q50": 15.92475, + "q75": 21.7535 + }, + "discrimination": { + "aucRefVsPressure": 0.495, + "nRef": 39, + "nPressure": 260, + "medianRefIndex": 0.82, + "medianPressureIndex": 0.852, + "aucRvsIm": 0.59, + "nR": 18, + "nIm": 40, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.2632, + "net_opt": 0.1071, + "n_cells": 19, + "c1_share": 0.1053 + }, + "transferNote": "39 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on hydraulic conductivity, precipitation, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.26 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.11, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydraulics", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-rp100-cm", + "metricName": "Residual pool depth", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Residual pool depth (cm)", + "howToMeasure": "Residual pool depth per 100 m; deeper residual pools generally better habitat.", + "methodContext": "Measure the thalweg depth at 10 or 15 evenly spaced stations between each pair of transects (100 or 150 along the reach). The value is the mean residual pool depth in centimeters, computed from that depth profile and the reach slope with the NRSA physical habitat calculations.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 7.430487155914307, + "y": 0.3 + }, + { + "x": 17.33780336380005, + "y": 0.7 + }, + { + "x": 31.04042959213257, + "y": 1.0 + }, + { + "x": 37.89174270629883, + "y": 1.0 + } + ] + }, + "referenceN": 20, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from NARS-9 region ecoregion CPL because this ecoregion has too few least-disturbed stations of its own. 20 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.47 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism -0.10, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.47 of evaluation regions; two thirds required); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 5.905178070068359, + 72.28726959228516 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "CPL", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 102, + "nComparable": 21, + "nUsable": 20, + "nLocal": 0, + "nHuc12": 20, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.929, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "20 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.47 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism -0.10, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.4737, + "net_opt": -0.0988, + "n_cells": 19, + "c1_share": 0.4211 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 9.246302008628845, + "q50": 16.91851234436035, + "q75": 38.66112756729126 + }, + "discrimination": { + "aucRefVsPressure": 0.458, + "nRef": 20, + "nPressure": 255, + "medianRefIndex": 0.801, + "medianPressureIndex": 0.951, + "aucRvsIm": 0.481, + "nR": 17, + "nIm": 40, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.4737, + "net_opt": -0.0988, + "n_cells": 19, + "c1_share": 0.4211 + }, + "transferNote": "20 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.47 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism -0.10, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydraulics", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "high-flow-dynamics", + "functionName": "High flow dynamics", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-pctimp2019ws", + "metricName": "Impervious surface", + "inputType": "proportion", + "sourceCitation": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "xLabel": "Impervious surface (%)", + "howToMeasure": "Impervious surface (%) is scored on the same fixed criteria EASI uses in every region. Good <10%, Fair 10-25%, Poor >25%.", + "methodContext": "Percent of the watershed in impervious surface. DEEP computes it for the delineated watershed. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 10.0, + "y": 0.69 + }, + { + "x": 25.005, + "y": 0.39 + }, + { + "x": 44.5115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Catchment hydrology (land-cover pressure)", + "easiMethod": "catchment-land-cover-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<10%" + }, + { + "rating": "Fair", + "label": "10-25%" + }, + { + "rating": "Poor", + "label": ">25%" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "schueler-1994", + "text": "Schueler 1994, The importance of imperviousness" + }, + { + "key": "allan-2004", + "text": "Allan 2004, Landscapes and riverscapes: the influence of land use on stream ecosystems" + }, + { + "key": "wang-1997", + "text": "Wang et al. 1997, Influences of watershed land use on habitat quality and biotic integrity in Wisconsin streams" + }, + { + "key": "king-2011", + "text": "King et al. 2011, Stream community thresholds at exceptionally low levels of catchment urbanization" + } + ], + "limitations": [ + "The worse input governs because hydrologic alteration through one pathway is not offset by low pressure in the other.", + "Agricultural bands are national screening tiers, not ecological criteria.", + "A result computed from one input is labeled partial.", + "Sensitive macroinvertebrate taxa decline well below the 10 percent impervious Good boundary (community thresholds near 0.5 to 2 percent), so a Good rating is not a no-effect finding (King et al. 2011)." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydraulics", + "assignmentOrigin": "additional-function" + } + ] + }, + { + "functionId": "floodplain-connectivity", + "functionName": "Floodplain connectivity", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-phab-xbkf-h", + "metricName": "Bankfull height above channel", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull height above channel (m)", + "howToMeasure": "Mean bankfull height; both incision (very high banks) and over-widening (very low) depart from reference. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the height of the bankfull elevation above the present water surface in meters, with a rod at the water's edge and a clinometer held level at bankfull. The value is the mean of the 11 heights.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.02545452117919922, + "y": 0.3 + }, + { + "x": 0.2003636196255684, + "y": 0.7 + }, + { + "x": 0.294545441865921, + "y": 1.0 + }, + { + "x": 0.5636363625526428, + "y": 1.0 + }, + { + "x": 0.6578181847929955, + "y": 0.7 + }, + { + "x": 0.8327272832393646, + "y": 0.3 + }, + { + "x": 1.1018182039260864, + "y": 0.0 + } + ] + }, + "referenceN": 21, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from NARS-9 region ecoregion CPL because this ecoregion has too few least-disturbed stations of its own. 21 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.12, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.63 of evaluation regions; two thirds required; net optimism +0.12, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.10000000149011612, + 1.2625000476837158 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "CPL", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 102, + "nComparable": 21, + "nUsable": 21, + "nLocal": 0, + "nHuc12": 21, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.929, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "21 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.12, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6316, + "net_opt": 0.1154, + "n_cells": 19, + "c1_share": 0.3158 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 0.5431818068027496, + "q50": 0.7063636183738708, + "q75": 1.0045454800128937 + }, + "discrimination": { + "aucRefVsPressure": 0.599, + "nRef": 21, + "nPressure": 259, + "medianRefIndex": 1.0, + "medianPressureIndex": 0.797, + "aucRvsIm": 0.541, + "nR": 18, + "nIm": 42, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6316, + "net_opt": 0.1154, + "n_cells": 19, + "c1_share": 0.3158 + }, + "transferNote": "21 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.12, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydraulics", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-bfwd-rat", + "metricName": "Bankfull width:depth ratio", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull width:depth ratio", + "howToMeasure": "Bankfull width-to-depth ratio; both over-widened (very high) and incised (very low) degrade condition. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the bankfull width and the bankfull height above the water surface, and the thalweg depth. The value is the mean bankfull width divided by the mean bankfull depth (bankfull height plus thalweg depth).", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 4.054068565368652, + "y": 0.3 + }, + { + "x": 9.562226510047912, + "y": 0.7 + }, + { + "x": 12.528157711029053, + "y": 1.0 + }, + { + "x": 21.002246856689453, + "y": 1.0 + }, + { + "x": 23.968178057670592, + "y": 0.7 + }, + { + "x": 29.476336002349854, + "y": 0.3 + }, + { + "x": 37.950425148010254, + "y": 0.0 + } + ] + }, + "referenceN": 15, + "curveCaveats": [ + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.63 of evaluation regions; two thirds required; net optimism +0.09, at most 0.05 allowed); confidence capped at 39.", + "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "criteriaBasis": "reference", + "referenceSupport": { + "status": "national", + "level": null, + "levelLabel": "", + "regionCode": "national", + "regionName": "National least-disturbed pool", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 770, + "nComparable": 15, + "nUsable": 15, + "nLocal": 0, + "nHuc12": 15, + "disposition": "exploratory", + "family": "channel_form", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "unvalidated", + "transferNote": "15 least-disturbed stations from the national pool, the three nearest to each of this ecoregion's streams on the natural setting that governs this metric family, none inside this ecoregion. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.09, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the exploratory floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "3c_matched", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6316, + "net_opt": 0.0862, + "n_cells": 19, + "c1_share": 0.1579 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 4.491257071495056, + "q50": 5.744075775146484, + "q75": 11.277987241744995 + }, + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it.", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "3c_matched", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6316, + "net_opt": 0.0862, + "n_cells": 19, + "c1_share": 0.1579 + }, + "transferNote": "15 least-disturbed stations from the national pool, the three nearest to each of this ecoregion's streams on the natural setting that governs this metric family, none inside this ecoregion. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.09, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the exploratory floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydraulics", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "hyporheic-connectivity", + "functionName": "Hyporheic connectivity", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-phab-xembed", + "metricName": "Embeddedness", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Embeddedness (%)", + "howToMeasure": "Percent embeddedness; higher means interstitial spaces filled with fines (worse).", + "methodContext": "At five evenly spaced points across each of the 11 transects, estimate how much of the particle under the point is buried in sand and finer sediment, in percent. Record the 55 estimates. The value is their mean.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 63.53409194946289, + "y": 1.0 + }, + { + "x": 73.75, + "y": 1.0 + }, + { + "x": 94.18181610107422, + "y": 0.7 + }, + { + "x": 100.0, + "y": 0.0 + } + ] + }, + "referenceN": 17, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 17 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error.", + "The reference stations for this curve were borrowed from NARS-9 region ecoregion CPL because this ecoregion has too few least-disturbed stations of its own. 17 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.06, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the exploratory floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.63 of evaluation regions; two thirds required; net optimism +0.06, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 54.54545593261719, + 100.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "CPL", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 102, + "nComparable": 21, + "nUsable": 17, + "nLocal": 0, + "nHuc12": 17, + "disposition": "exploratory", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.929, + "supportedLevel": "l2", + "transferRisk": "unvalidated", + "transferNote": "17 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.06, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the exploratory floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6316, + "net_opt": 0.0592, + "n_cells": 19, + "c1_share": 0.4737 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 7, + "q25": 93.3636360168457, + "q50": 99.63636016845703, + "q75": 100.0 + }, + "discrimination": { + "aucRefVsPressure": 0.647, + "nRef": 17, + "nPressure": 152, + "medianRefIndex": 0.849, + "medianPressureIndex": 0.656, + "aucRvsIm": 0.771, + "nR": 11, + "nIm": 22, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6316, + "net_opt": 0.0592, + "n_cells": 19, + "c1_share": 0.4737 + }, + "transferNote": "17 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.06, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the exploratory floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydraulics", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "channel-evolution", + "functionName": "Channel evolution", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-xbkf-h", + "metricName": "Bankfull height above channel", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull height above channel (m)", + "howToMeasure": "Mean bankfull height; both incision (very high banks) and over-widening (very low) depart from reference. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the height of the bankfull elevation above the present water surface in meters, with a rod at the water's edge and a clinometer held level at bankfull. The value is the mean of the 11 heights.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.02545452117919922, + "y": 0.3 + }, + { + "x": 0.2003636196255684, + "y": 0.7 + }, + { + "x": 0.294545441865921, + "y": 1.0 + }, + { + "x": 0.5636363625526428, + "y": 1.0 + }, + { + "x": 0.6578181847929955, + "y": 0.7 + }, + { + "x": 0.8327272832393646, + "y": 0.3 + }, + { + "x": 1.1018182039260864, + "y": 0.0 + } + ] + }, + "referenceN": 21, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from NARS-9 region ecoregion CPL because this ecoregion has too few least-disturbed stations of its own. 21 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.12, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.63 of evaluation regions; two thirds required; net optimism +0.12, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.10000000149011612, + 1.2625000476837158 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "CPL", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 102, + "nComparable": 21, + "nUsable": 21, + "nLocal": 0, + "nHuc12": 21, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.929, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "21 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.12, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6316, + "net_opt": 0.1154, + "n_cells": 19, + "c1_share": 0.3158 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 0.5431818068027496, + "q50": 0.7063636183738708, + "q75": 1.0045454800128937 + }, + "discrimination": { + "aucRefVsPressure": 0.599, + "nRef": 21, + "nPressure": 259, + "medianRefIndex": 1.0, + "medianPressureIndex": 0.797, + "aucRvsIm": 0.541, + "nR": 18, + "nIm": 42, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6316, + "net_opt": 0.1154, + "n_cells": 19, + "c1_share": 0.3158 + }, + "transferNote": "21 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.12, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Geomorphology", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-bfwd-rat", + "metricName": "Bankfull width:depth ratio", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull width:depth ratio", + "howToMeasure": "Bankfull width-to-depth ratio; both over-widened (very high) and incised (very low) degrade condition. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the bankfull width and the bankfull height above the water surface, and the thalweg depth. The value is the mean bankfull width divided by the mean bankfull depth (bankfull height plus thalweg depth).", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 4.054068565368652, + "y": 0.3 + }, + { + "x": 9.562226510047912, + "y": 0.7 + }, + { + "x": 12.528157711029053, + "y": 1.0 + }, + { + "x": 21.002246856689453, + "y": 1.0 + }, + { + "x": 23.968178057670592, + "y": 0.7 + }, + { + "x": 29.476336002349854, + "y": 0.3 + }, + { + "x": 37.950425148010254, + "y": 0.0 + } + ] + }, + "referenceN": 15, + "curveCaveats": [ + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.63 of evaluation regions; two thirds required; net optimism +0.09, at most 0.05 allowed); confidence capped at 39.", + "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "criteriaBasis": "reference", + "referenceSupport": { + "status": "national", + "level": null, + "levelLabel": "", + "regionCode": "national", + "regionName": "National least-disturbed pool", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 770, + "nComparable": 15, + "nUsable": 15, + "nLocal": 0, + "nHuc12": 15, + "disposition": "exploratory", + "family": "channel_form", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "unvalidated", + "transferNote": "15 least-disturbed stations from the national pool, the three nearest to each of this ecoregion's streams on the natural setting that governs this metric family, none inside this ecoregion. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.09, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the exploratory floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "3c_matched", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6316, + "net_opt": 0.0862, + "n_cells": 19, + "c1_share": 0.1579 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 4.491257071495056, + "q50": 5.744075775146484, + "q75": 11.277987241744995 + }, + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it.", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "3c_matched", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6316, + "net_opt": 0.0862, + "n_cells": 19, + "c1_share": 0.1579 + }, + "transferNote": "15 least-disturbed stations from the national pool, the three nearest to each of this ecoregion's streams on the natural setting that governs this metric family, none inside this ecoregion. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.09, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the exploratory floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "channel-floodplain-dynamics", + "functionName": "Channel and floodplain dynamics", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-sinu", + "metricName": "Sinuosity", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Sinuosity", + "howToMeasure": "Channel sinuosity; higher generally indicates a more natural planform.", + "methodContext": "Take a compass bearing (backsight) and the distance between each pair of neighboring transects. The value is the channel length along those segments divided by the straight line distance between the ends of the reach.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 1.0, + "y": 0.0 + }, + { + "x": 1.0926767587661743, + "y": 0.7 + }, + { + "x": 1.635733962059021, + "y": 1.0 + }, + { + "x": 1.9072625637054443, + "y": 1.0 + } + ] + }, + "referenceN": 17, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 17 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error.", + "The reference stations for this curve were borrowed from NARS-9 region ecoregion CPL because this ecoregion has too few least-disturbed stations of its own. 17 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is high and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 1.0011217594146729, + 9.41120433807373 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "CPL", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 102, + "nComparable": 21, + "nUsable": 17, + "nLocal": 0, + "nHuc12": 17, + "disposition": "exploratory", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.929, + "supportedLevel": "l3", + "transferRisk": "high", + "transferNote": "17 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is high and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 7, + "q25": 1.013335108757019, + "q50": 1.02266526222229, + "q75": 1.1347851753234863 + }, + "discrimination": { + "aucRefVsPressure": 0.57, + "nRef": 17, + "nPressure": 153, + "medianRefIndex": 0.76, + "medianPressureIndex": 0.746, + "aucRvsIm": 0.694, + "nR": 11, + "nIm": 22, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xbka", + "metricName": "Bank angle", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bank angle (degrees)", + "howToMeasure": "Mean bank angle; very steep banks indicate incision and very flat banks an over-widened, aggrading channel, so departure from the reference core in either direction departs from reference. Direction resolved at the Northeastern Highlands review gate (owner decision, 2026-08-21), consistent with the width-to-depth and bankfull-height treatment. low_tail flat added at the adversarial review gate (owner decision, 2026-08-21): a regraded or naturally gentle bank holds at the Functioning edge instead of being penalized, because the flat tail is not symmetric evidence of degradation and the framework's stated use is restoration evaluation.", + "methodContext": "At the left and the right bank of each transect, lay a pole about one meter long against the bank and read its angle from horizontal with a clinometer, in degrees. The value is the mean of the 22 readings.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.7 + }, + { + "x": 8.590909814834596, + "y": 0.7 + }, + { + "x": 15.909090995788574, + "y": 1.0 + }, + { + "x": 36.818180084228516, + "y": 1.0 + }, + { + "x": 44.136361265182494, + "y": 0.7 + }, + { + "x": 57.72726917266846, + "y": 0.3 + }, + { + "x": 78.6363582611084, + "y": 0.0 + } + ] + }, + "referenceN": 17, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 17 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error.", + "The reference stations for this curve were borrowed from NARS-9 region ecoregion CPL because this ecoregion has too few least-disturbed stations of its own. 17 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level II, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 8.227272987365723, + 72.04545593261719 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "CPL", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 102, + "nComparable": 21, + "nUsable": 17, + "nLocal": 0, + "nHuc12": 17, + "disposition": "exploratory", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.929, + "supportedLevel": "l2", + "transferRisk": "moderate", + "transferNote": "17 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level II, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 7, + "q25": 34.39545440673828, + "q50": 44.59090805053711, + "q75": 49.727272033691406 + }, + "discrimination": { + "aucRefVsPressure": 0.538, + "nRef": 17, + "nPressure": 153, + "medianRefIndex": 0.912, + "medianPressureIndex": 0.888, + "aucRvsIm": 0.597, + "nR": 11, + "nIm": 22, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "sediment-continuity", + "functionName": "Sediment continuity", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-lrbs-use", + "metricName": "Relative bed stability", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Relative bed stability (log)", + "howToMeasure": "Log relative bed stability; departure from the reference core in EITHER direction departs from reference (negative excess fines, positive an armored, sediment-starved bed, the classic below-impoundment failure). The pilot's rising direction scored armored beds 1.0 and left Sediment continuity blind to its textbook failure mode. Two-sided form is an owner decision at the adversarial review gate, 2026-08-21.", + "methodContext": "Computed, not read in the field. It is the base 10 logarithm of the ratio of the geometric mean particle diameter to the largest diameter the bankfull flow can move, from the particle count, reach slope, bankfull depth, wood tally and residual pools, with the NRSA physical habitat calculations.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": -4.5240108370780945, + "y": 0.0 + }, + { + "x": -3.5129734873771667, + "y": 0.3 + }, + { + "x": -2.855799210071564, + "y": 0.7 + }, + { + "x": -2.501936137676239, + "y": 1.0 + }, + { + "x": -1.4908987879753113, + "y": 1.0 + }, + { + "x": -1.1370357155799866, + "y": 0.7 + }, + { + "x": -0.47986143827438354, + "y": 0.3 + }, + { + "x": 0.5311759114265442, + "y": 0.0 + } + ] + }, + "referenceN": 20, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from NARS-9 region ecoregion CPL because this ecoregion has too few least-disturbed stations of its own. 20 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism -0.05, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.63 of evaluation regions; two thirds required); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + -2.9515671730041504, + -0.45426854491233826 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "CPL", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 102, + "nComparable": 21, + "nUsable": 20, + "nLocal": 0, + "nHuc12": 20, + "disposition": "adequate", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.929, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "20 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism -0.05, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6316, + "net_opt": -0.0465, + "n_cells": 19, + "c1_share": 0.2105 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": -2.3025615215301514, + "q50": -2.0362014174461365, + "q75": -1.558125227689743 + }, + "discrimination": { + "aucRefVsPressure": 0.606, + "nRef": 20, + "nPressure": 246, + "medianRefIndex": 0.934, + "medianPressureIndex": 0.788, + "aucRvsIm": 0.49, + "nR": 18, + "nIm": 40, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6316, + "net_opt": -0.0465, + "n_cells": 19, + "c1_share": 0.2105 + }, + "transferNote": "20 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism -0.05, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "bed-composition-bedform-dynamics", + "functionName": "Bed composition and bedform dynamics", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-xembed", + "metricName": "Embeddedness", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Embeddedness (%)", + "howToMeasure": "Percent embeddedness; higher means interstitial spaces filled with fines (worse).", + "methodContext": "At five evenly spaced points across each of the 11 transects, estimate how much of the particle under the point is buried in sand and finer sediment, in percent. Record the 55 estimates. The value is their mean.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 63.53409194946289, + "y": 1.0 + }, + { + "x": 73.75, + "y": 1.0 + }, + { + "x": 94.18181610107422, + "y": 0.7 + }, + { + "x": 100.0, + "y": 0.0 + } + ] + }, + "referenceN": 17, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 17 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error.", + "The reference stations for this curve were borrowed from NARS-9 region ecoregion CPL because this ecoregion has too few least-disturbed stations of its own. 17 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.06, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the exploratory floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.63 of evaluation regions; two thirds required; net optimism +0.06, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 54.54545593261719, + 100.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "CPL", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 102, + "nComparable": 21, + "nUsable": 17, + "nLocal": 0, + "nHuc12": 17, + "disposition": "exploratory", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.929, + "supportedLevel": "l2", + "transferRisk": "unvalidated", + "transferNote": "17 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.06, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the exploratory floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6316, + "net_opt": 0.0592, + "n_cells": 19, + "c1_share": 0.4737 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 7, + "q25": 93.3636360168457, + "q50": 99.63636016845703, + "q75": 100.0 + }, + "discrimination": { + "aucRefVsPressure": 0.647, + "nRef": 17, + "nPressure": 152, + "medianRefIndex": 0.849, + "medianPressureIndex": 0.656, + "aucRvsIm": 0.771, + "nR": 11, + "nIm": 22, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6316, + "net_opt": 0.0592, + "n_cells": 19, + "c1_share": 0.4737 + }, + "transferNote": "17 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region CPL, none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.06, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the exploratory floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Geomorphology", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-lwdeqvolm100", + "metricName": "Large wood volume", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Large wood volume (m3/100m)", + "howToMeasure": "Large woody debris volume per 100 m; higher is better.", + "methodContext": "Between each pair of transects, tally every piece of wood at least 10 cm in diameter and 1.5 m long in or above the bankfull channel, by length and diameter class. The value is the wood volume per 100 m of channel, computed from the tally classes.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.09854081805263247, + "y": 0.3 + }, + { + "x": 0.22992857545614243, + "y": 0.7 + }, + { + "x": 14.453740119934082, + "y": 1.0 + }, + { + "x": 21.565645892173052, + "y": 1.0 + } + ] + }, + "referenceN": 33, + "curveCaveats": [ + "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + ], + "confidenceLabel": "Low", + "confidenceTotal": 53.5, + "criteriaBasis": "reference", + "referenceSupport": { + "status": "national", + "level": null, + "levelLabel": "", + "regionCode": "national", + "regionName": "National least-disturbed pool", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 770, + "nComparable": 33, + "nUsable": 33, + "nLocal": 0, + "nHuc12": 32, + "disposition": "adequate", + "family": "riparian", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "moderate", + "transferNote": "33 least-disturbed stations from the national pool, the three nearest to each of this ecoregion's streams on the natural setting that governs this metric family, none inside this ecoregion.", + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 0.0, + "q50": 0.20812499523162842, + "q75": 1.214083969593048 + }, + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it.", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "light-thermal-regime", + "functionName": "Light & thermal regime", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-phab-xcdenmid", + "metricName": "Canopy density, mid-channel", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Canopy density, mid-channel (%)", + "howToMeasure": "Mid-channel canopy density; higher shading generally better for thermal/light regime.", + "methodContext": "At mid-channel on each transect, read a convex spherical densiometer facing upstream, downstream, left and right, counting the covered points of 17. The value is the mean of the 44 readings as a percent.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 1.3631589327539717, + "y": 0.3 + }, + { + "x": 3.180704176425934, + "y": 0.7 + }, + { + "x": 53.643049240112305, + "y": 1.0 + }, + { + "x": 78.87422177195549, + "y": 1.0 + } + ] + }, + "referenceN": 56, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level I ecoregion 9 (Great Plains) because this ecoregion has too few least-disturbed stations of its own. 56 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level I 9 (Great Plains), none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.56 of evaluation regions; two thirds required; net optimism +0.17, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.0, + 94.78609466552734 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l1", + "level": "l1", + "levelLabel": "Level I", + "regionCode": "9", + "regionName": "Great Plains", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 125, + "nComparable": 64, + "nUsable": 56, + "nLocal": 0, + "nHuc12": 50, + "disposition": "adequate", + "family": "riparian", + "covariates": [ + "drainage_area_sqkm", + "precip8110ws" + ], + "selfCoverage": 0.929, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "56 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level I 9 (Great Plains), none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l1", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.1662, + "n_cells": 18, + "c1_share": 0.3333 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 7, + "q25": 15.3743314743042, + "q50": 47.994651794433594, + "q75": 55.68181800842285 + }, + "stratifier": { + "key": "NhdDrainageAreaClass", + "variable": "drainage_area_sqkm", + "units": "km2", + "source": "NHDPlus V2 total drainage area", + "breaks": [ + 10.0, + 100.0 + ], + "right": true, + "classes": [ + { + "key": "le_10", + "label": "Headwater (10 km2 and under)", + "hasCurve": false, + "n": 0 + }, + { + "key": "10_to_100", + "label": "Small stream (10 to 100 km2)", + "hasCurve": true, + "n": 25 + }, + { + "key": "gt_100", + "label": "Large stream (over 100 km2)", + "hasCurve": true, + "n": 31 + } + ], + "registryVersion": 1, + "status": "accept" + }, + "discrimination": { + "aucRefVsPressure": 0.513, + "nRef": 56, + "nPressure": 480, + "medianRefIndex": 0.858, + "medianPressureIndex": 0.806, + "aucRvsIm": 0.457, + "nR": 63, + "nIm": 76, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l1", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.1662, + "n_cells": 18, + "c1_share": 0.3333 + }, + "transferNote": "56 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level I 9 (Great Plains), none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "curveLayers": [ + { + "stratum": "", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 1.3631589327539717, + "y": 0.3 + }, + { + "x": 3.180704176425934, + "y": 0.7 + }, + { + "x": 53.643049240112305, + "y": 1.0 + }, + { + "x": 78.87422177195549, + "y": 1.0 + } + ] + }, + { + "stratum": "10_to_100", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 13.063407080514091, + "y": 0.3 + }, + { + "x": 30.48128318786621, + "y": 0.7 + }, + { + "x": 62.96791458129883, + "y": 1.0 + }, + { + "x": 79.21123027801514, + "y": 1.0 + } + ] + }, + { + "stratum": "gt_100", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.6183154923575265, + "y": 0.3 + }, + { + "x": 1.4427361488342285, + "y": 0.7 + }, + { + "x": 44.45187187194824, + "y": 1.0 + }, + { + "x": 65.95643973350525, + "y": 1.0 + } + ] + } + ], + "activeStratum": "", + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "carbon-processing", + "functionName": "Carbon processing", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-phab-xcmgw", + "metricName": "Riparian veg cover, woody", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Riparian veg cover, woody (frac)", + "howToMeasure": "Riparian canopy plus mid-layer plus ground cover; higher is better.", + "methodContext": "In a 10 m by 10 m plot on each bank at each transect, estimate the areal cover class of woody vegetation in the canopy, the understory and the ground layer. The value is the summed woody cover of the three layers, averaged over the 22 plots, as a fraction.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.15549919328519277, + "y": 0.3 + }, + { + "x": 0.3628314509987831, + "y": 0.7 + }, + { + "x": 0.8230113536119461, + "y": 1.0 + }, + { + "x": 1.0531013049185276, + "y": 1.0 + } + ] + }, + "referenceN": 64, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level I ecoregion 9 (Great Plains) because this ecoregion has too few least-disturbed stations of its own. 64 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level I 9 (Great Plains), none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.50 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.09, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.50 of evaluation regions; two thirds required; net optimism +0.09, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.0022727269679307938, + 1.787500023841858 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l1", + "level": "l1", + "levelLabel": "Level I", + "regionCode": "9", + "regionName": "Great Plains", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 125, + "nComparable": 64, + "nUsable": 64, + "nLocal": 0, + "nHuc12": 58, + "disposition": "adequate", + "family": "riparian", + "covariates": [ + "drainage_area_sqkm", + "precip8110ws" + ], + "selfCoverage": 0.929, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "64 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level I 9 (Great Plains), none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.50 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.09, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l1", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5, + "net_opt": 0.0857, + "n_cells": 18, + "c1_share": 0.5556 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 0.5818181782960892, + "q50": 0.6721591055393219, + "q75": 0.7284090965986252 + }, + "discrimination": { + "aucRefVsPressure": 0.591, + "nRef": 64, + "nPressure": 553, + "medianRefIndex": 0.876, + "medianPressureIndex": 0.782, + "aucRvsIm": 0.507, + "nR": 66, + "nIm": 86, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l1", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5, + "net_opt": 0.0857, + "n_cells": 18, + "c1_share": 0.5556 + }, + "transferNote": "64 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level I 9 (Great Plains), none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.50 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.09, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "nutrient-cycling", + "functionName": "Nutrient cycling", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-chem-ntl", + "metricName": "Total nitrogen", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2018-19 regional total nitrogen thresholds, NARS-9 region CPL", + "xLabel": "Total nitrogen (mg N/L)", + "howToMeasure": "Total nitrogen; higher indicates nutrient enrichment (worse). The total fraction, reported in every NRSA cycle, and the fraction published nitrogen criteria are written against.", + "methodContext": "Total nitrogen in milligrams of nitrogen per liter, laboratory analysis of the unfiltered mid-channel grab sample from the X-site, kept on ice.", + "curve": { + "layerName": "USEPA NRSA 2018-19 regional total nitrogen thresholds, NARS-9 region CPL", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 0.6245, + "y": 0.69 + }, + { + "x": 1.081, + "y": 0.39 + }, + { + "x": 1.67445, + "y": 0.0 + } + ] + }, + "curveCaveats": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ], + "confidenceLabel": "Published benchmark", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "NRSA 2018-19 regional total nitrogen thresholds, NARS-9 region CPL", + "easiMethod": "regional-nutrient-condition", + "region": "CPL", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "≤0.624 mg N/L" + }, + { + "rating": "Fair", + "label": ">0.624 to <1.081 mg N/L" + }, + { + "rating": "Poor", + "label": "≥1.081 mg N/L" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "nars-regions", + "text": "Ecoregions Used in the National Aquatic Resource Surveys" + } + ], + "limitations": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ] + }, + "referenceSupport": { + "status": "published", + "level": null, + "levelLabel": "", + "regionCode": "34", + "regionName": "Western Gulf Coastal Plain", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 0, + "nComparable": 0, + "nUsable": 0, + "nLocal": 0, + "nHuc12": 0, + "disposition": "exploratory", + "family": "water_chemistry", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Scored against a published criterion for NARS-9 region CPL rather than against stations of this ecoregion. Its breakpoints are 0.624 and 1.081 mg N/L. The criterion carries its own definition of reference, which need not match this assessment's.", + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 0.6669999957084656, + "q50": 1.4549999833106995, + "q75": 4.799000024795532 + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "publishedBenchmark": { + "benchmark": "Nutrient condition", + "methodKey": "regional-nutrient-condition", + "analyte": "total nitrogen", + "fraction": "total", + "citations": [ + "nrsa-2018-19", + "nars-regions", + "wqp" + ], + "sourceTier": "connected-nearby", + "confidence": "M/L", + "provisional": false, + "limitations": [ + "Nearby monitoring stations are not necessarily reach-specific.", + "Each station is reduced to a median before station medians are combined, preventing heavily sampled stations from dominating.", + "One analyte may produce a partial rating.", + "When observations are unavailable, the CHEM fallback represents landscape integrity rather than measured nutrient concentration." + ], + "unitConversion": "mg/L to mg N/L x1.0", + "region": "CPL" + }, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical" + }, + { + "metricId": "spring-chem-ptl", + "metricName": "Total phosphorus", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2018-19 regional total phosphorus thresholds, NARS-9 region CPL", + "xLabel": "Total phosphorus (ug/L)", + "howToMeasure": "Total phosphorus; higher indicates nutrient enrichment (worse).", + "methodContext": "Total phosphorus in micrograms per liter, laboratory analysis of the mid-channel grab sample from the X-site, kept on ice.", + "curve": { + "layerName": "USEPA NRSA 2018-19 regional total phosphorus thresholds, NARS-9 region CPL", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 55.95, + "y": 0.69 + }, + { + "x": 103.0, + "y": 0.39 + }, + { + "x": 164.165, + "y": 0.0 + } + ] + }, + "curveCaveats": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ], + "confidenceLabel": "Published benchmark", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "NRSA 2018-19 regional total phosphorus thresholds, NARS-9 region CPL", + "easiMethod": "regional-nutrient-condition", + "region": "CPL", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "≤55.9 ug/L" + }, + { + "rating": "Fair", + "label": ">55.9 to <103 ug/L" + }, + { + "rating": "Poor", + "label": "≥103 ug/L" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "nars-regions", + "text": "Ecoregions Used in the National Aquatic Resource Surveys" + } + ], + "limitations": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ] + }, + "referenceSupport": { + "status": "published", + "level": null, + "levelLabel": "", + "regionCode": "34", + "regionName": "Western Gulf Coastal Plain", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 0, + "nComparable": 0, + "nUsable": 0, + "nLocal": 0, + "nHuc12": 0, + "disposition": "exploratory", + "family": "water_chemistry", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Scored against a published criterion for NARS-9 region CPL rather than against stations of this ecoregion. Its breakpoints are 55.9 and 103 ug/L. The criterion carries its own definition of reference, which need not match this assessment's.", + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 90.97500228881836, + "q50": 302.02549743652344, + "q75": 1493.3594970703125 + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "publishedBenchmark": { + "benchmark": "Nutrient condition", + "methodKey": "regional-nutrient-condition", + "analyte": "total phosphorus", + "fraction": "total", + "citations": [ + "nrsa-2018-19", + "nars-regions", + "wqp" + ], + "sourceTier": "connected-nearby", + "confidence": "M/L", + "provisional": false, + "limitations": [ + "Nearby monitoring stations are not necessarily reach-specific.", + "Each station is reduced to a median before station medians are combined, preventing heavily sampled stations from dominating.", + "One analyte may produce a partial rating.", + "When observations are unavailable, the CHEM fallback represents landscape integrity rather than measured nutrient concentration." + ], + "unitConversion": "mg/L to ug/L x1000.0", + "region": "CPL" + }, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "water-soil-quality", + "functionName": "Water & soil quality", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-chem-cond", + "metricName": "Specific conductivity", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2018-19 specific conductance benchmarks, NARS-9 region CPL", + "xLabel": "Specific conductivity (uS/cm)", + "howToMeasure": "Specific conductance; higher indicates ionic disturbance (worse).", + "methodContext": "Specific conductance in microsiemens per centimeter. NRSA reports the laboratory value of a grab sample taken at mid-channel at the X-site (the center of the reach). A calibrated multi-parameter meter reads the same quantity in the stream at that point.", + "curve": { + "layerName": "USEPA NRSA 2018-19 specific conductance benchmarks, NARS-9 region CPL", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 500.05, + "y": 0.69 + }, + { + "x": 1000.05, + "y": 0.39 + }, + { + "x": 1650.05, + "y": 0.0 + } + ] + }, + "curveCaveats": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ], + "confidenceLabel": "Published benchmark", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "NRSA salinity condition benchmarks, specific conductance, NARS-9 region CPL", + "easiMethod": null, + "catalogEntry": "nrsa-2018-19-salinity-conductivity", + "region": "CPL", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "≤500 uS/cm" + }, + { + "rating": "Fair", + "label": ">500 to ≤1000 uS/cm" + }, + { + "rating": "Poor", + "label": ">1000 uS/cm" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "nars-regions", + "text": "Ecoregions Used in the National Aquatic Resource Surveys" + } + ], + "limitations": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "The benchmarks are fixed category boundaries chosen by EPA, 500 and 1000 microsiemens per centimetre in six regions and 1000 and 2000 in the Northern, Southern and Temperate Plains, not percentiles of a reference distribution, and they have not changed since the 2008-09 survey.", + "Specific conductance carries natural geology and climate as well as disturbance, so a naturally saline or calcareous stream reads Fair or Poor against these benchmarks without being degraded." + ] + }, + "referenceSupport": { + "status": "published", + "level": null, + "levelLabel": "", + "regionCode": "34", + "regionName": "Western Gulf Coastal Plain", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 0, + "nComparable": 0, + "nUsable": 0, + "nLocal": 0, + "nHuc12": 0, + "disposition": "exploratory", + "family": "water_chemistry", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Scored against a published criterion for NARS-9 region CPL rather than against stations of this ecoregion. Its breakpoints are 500 and 1000 uS/cm. The criterion carries its own definition of reference, which need not match this assessment's.", + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 469.5, + "q50": 780.1499938964844, + "q75": 895.3999938964844 + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "publishedBenchmark": { + "benchmark": "NRSA salinity condition benchmarks, specific conductance", + "methodKey": null, + "catalogEntry": "nrsa-2018-19-salinity-conductivity", + "analyte": "specific conductance", + "fraction": "total", + "citations": [ + "nrsa-2018-19", + "nars-regions" + ], + "sourceTier": "epa-national-survey-benchmark", + "confidence": "M", + "provisional": false, + "limitations": [ + "The benchmarks are fixed category boundaries chosen by EPA, 500 and 1000 microsiemens per centimetre in six regions and 1000 and 2000 in the Northern, Southern and Temperate Plains, not percentiles of a reference distribution, and they have not changed since the 2008-09 survey.", + "Specific conductance carries natural geology and climate as well as disturbance, so a naturally saline or calcareous stream reads Fair or Poor against these benchmarks without being degraded." + ], + "unitConversion": "uS/cm to uS/cm x1.0", + "thresholdsSource": { + "document": "National Rivers and Streams Assessment 2018-2019 Technical Support Document, Version 1.1, EPA 841-R-22-005 (November 2023, updated September 2024)", + "table": "Table 7-1. Nutrient and Salinity Category Benchmarks for NRSA Assessment (Salinity as Conductivity, Good-Fair and Fair-Poor)", + "page": 93, + "url": "https://www.epa.gov/system/files/documents/2024-12/nrsa-2018-19-tsd-final-11252024.pdf" + }, + "verification": { + "epaClassColumn": "SAL_COND", + "checkedOn": "2026-09-28", + "n": 3702, + "agree": 3702, + "share": 1.0 + }, + "region": "CPL" + }, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "habitat-provision", + "functionName": "Habitat provision", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-phab-xfc-nat", + "metricName": "Natural fish cover", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Natural fish cover (frac)", + "howToMeasure": "Natural fish cover; higher is better.", + "methodContext": "In the 10 m of channel centered on each transect, estimate the areal cover class of each fish cover type on the form (wood, brush, overhanging vegetation, undercut banks, boulders and the rest). The value is the summed areal cover of the types that are not man-made, averaged over the transects.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 34), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.06793831075940814, + "y": 0.3 + }, + { + "x": 0.15852272510528564, + "y": 0.7 + }, + { + "x": 0.31931817531585693, + "y": 1.0 + }, + { + "x": 0.3997159004211426, + "y": 1.0 + } + ] + }, + "referenceN": 64, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level I ecoregion 9 (Great Plains) because this ecoregion has too few least-disturbed stations of its own. 64 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level I 9 (Great Plains), none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.61 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.14, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.61 of evaluation regions; two thirds required; net optimism +0.14, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.00909090880304575, + 0.9818181991577148 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l1", + "level": "l1", + "levelLabel": "Level I", + "regionCode": "9", + "regionName": "Great Plains", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 125, + "nComparable": 64, + "nUsable": 64, + "nLocal": 0, + "nHuc12": 58, + "disposition": "adequate", + "family": "riparian", + "covariates": [ + "drainage_area_sqkm", + "precip8110ws" + ], + "selfCoverage": 0.929, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "64 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level I 9 (Great Plains), none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.61 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.14, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l1", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6111, + "net_opt": 0.1386, + "n_cells": 18, + "c1_share": 0.4444 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 0.15965909138321877, + "q50": 0.17499999701976776, + "q75": 0.39261363446712494 + }, + "stratifier": { + "key": "NhdDrainageAreaClass", + "variable": "drainage_area_sqkm", + "units": "km2", + "source": "NHDPlus V2 total drainage area", + "breaks": [ + 10.0, + 100.0 + ], + "right": true, + "classes": [ + { + "key": "le_10", + "label": "Headwater (10 km2 and under)", + "hasCurve": false, + "n": 0 + }, + { + "key": "10_to_100", + "label": "Small stream (10 to 100 km2)", + "hasCurve": true, + "n": 26 + }, + { + "key": "gt_100", + "label": "Large stream (over 100 km2)", + "hasCurve": true, + "n": 38 + } + ], + "registryVersion": 1, + "status": "accept" + }, + "discrimination": { + "aucRefVsPressure": 0.56, + "nRef": 64, + "nPressure": 553, + "medianRefIndex": 0.789, + "medianPressureIndex": 0.76, + "aucRvsIm": 0.498, + "nR": 66, + "nIm": 86, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l1", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6111, + "net_opt": 0.1386, + "n_cells": 18, + "c1_share": 0.4444 + }, + "transferNote": "64 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level I 9 (Great Plains), none of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.61 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.14, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "curveLayers": [ + { + "stratum": "", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.06793831075940814, + "y": 0.3 + }, + { + "x": 0.15852272510528564, + "y": 0.7 + }, + { + "x": 0.31931817531585693, + "y": 1.0 + }, + { + "x": 0.3997159004211426, + "y": 1.0 + } + ] + }, + { + "stratum": "10_to_100", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.07086038908788136, + "y": 0.3 + }, + { + "x": 0.16534090787172318, + "y": 0.7 + }, + { + "x": 0.46136362850666046, + "y": 1.0 + }, + { + "x": 0.6093749888241291, + "y": 1.0 + } + ] + }, + { + "stratum": "gt_100", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.0637986995279789, + "y": 0.3 + }, + { + "x": 0.14886363223195076, + "y": 0.7 + }, + { + "x": 0.27997158467769623, + "y": 1.0 + }, + { + "x": 0.34552556090056896, + "y": 1.0 + } + ] + } + ], + "activeStratum": "", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "population-support", + "functionName": "Population support", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-fish-mmi-fish", + "metricName": "Fish MMI", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2018-19 fish assemblage multimetric index benchmarks, NARS-9 region CPL", + "xLabel": "Fish MMI (MMI points)", + "howToMeasure": "NRSA fish multimetric index (0 to 100); higher is better. Eight metrics per NARS-9 region, several adjusted for watershed area, scored from an electrofishing sample; sites sampled by seining carry no index.", + "methodContext": "Computed, not read in the field. From the upstream electrofishing pass over every habitat between the transects, with every fish identified and counted, score EPA's eight regional fish metrics, several adjusted for watershed area, and rescale to 0 to 100, as the 2018-19 technical support document describes.", + "curve": { + "layerName": "USEPA NRSA 2018-19 fish assemblage multimetric index benchmarks, NARS-9 region CPL", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 33.145, + "y": 0.0 + }, + { + "x": 46.795, + "y": 0.39 + }, + { + "x": 57.295, + "y": 0.69 + }, + { + "x": 68.145, + "y": 1.0 + } + ] + }, + "curveCaveats": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ], + "confidenceLabel": "Published benchmark", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "NRSA fish MMI condition benchmarks, NARS-9 region CPL", + "easiMethod": null, + "catalogEntry": "nrsa-2018-19-fish-mmi", + "region": "CPL", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "≥57.3 MMI points" + }, + { + "rating": "Fair", + "label": "≥46.8 to <57.3 MMI points" + }, + { + "rating": "Poor", + "label": "<46.8 MMI points" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "nars-regions", + "text": "Ecoregions Used in the National Aquatic Resource Surveys" + } + ], + "limitations": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "The benchmarks rest on EPA's least-disturbed reference sites of 2008-09 and 2013-14 and their disturbance-adjusted 5th and 25th percentiles, a definition of reference that need not match this assessment's landscape-pressure screen; three regions had fewer than 30 such sites.", + "The index is defined by the NRSA fish protocol and EPA's regional metric scoring with watershed-area adjustments; a value from another sampling method or scoring is not comparable, and EPA computes no index for sites sampled by seining.", + "The Xeric West fair-to-poor bound is EPA's applied value of 66.3, where the printed tables show 63.7." + ] + }, + "referenceSupport": { + "status": "published", + "level": null, + "levelLabel": "", + "regionCode": "34", + "regionName": "Western Gulf Coastal Plain", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 0, + "nComparable": 0, + "nUsable": 0, + "nLocal": 0, + "nHuc12": 0, + "disposition": "exploratory", + "family": "biology", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Scored against a published criterion for NARS-9 region CPL rather than against stations of this ecoregion. Its breakpoints are 46.8 and 57.3 MMI points. The criterion carries its own definition of reference, which need not match this assessment's.", + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 9, + "q25": 32.59000015258789, + "q50": 41.970001220703125, + "q75": 42.040000915527344 + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "publishedBenchmark": { + "benchmark": "NRSA fish MMI condition benchmarks", + "methodKey": null, + "catalogEntry": "nrsa-2018-19-fish-mmi", + "analyte": "fish assemblage multimetric index", + "fraction": "index", + "citations": [ + "nrsa-2018-19", + "nars-regions" + ], + "sourceTier": "epa-national-survey-benchmark", + "confidence": "M", + "provisional": false, + "limitations": [ + "The benchmarks rest on EPA's least-disturbed reference sites of 2008-09 and 2013-14 and their disturbance-adjusted 5th and 25th percentiles, a definition of reference that need not match this assessment's landscape-pressure screen; three regions had fewer than 30 such sites.", + "The index is defined by the NRSA fish protocol and EPA's regional metric scoring with watershed-area adjustments; a value from another sampling method or scoring is not comparable, and EPA computes no index for sites sampled by seining.", + "The Xeric West fair-to-poor bound is EPA's applied value of 66.3, where the printed tables show 63.7." + ], + "unitConversion": "MMI points to MMI points x1.0", + "thresholdsSource": { + "document": "National Rivers and Streams Assessment 2018-2019 Technical Support Document, Version 1.1, EPA 841-R-22-005 (November 2023, updated September 2024)", + "table": "Table 6-15. Benchmarks for assigning ecological condition based on the distribution of regional fish MMI scores in least-disturbed sites sampled in NRSA 2008-09 or NRSA 2013-14, adjusted using the hindcasting approach of Herlihy et al. (2008)", + "page": 73, + "url": "https://www.epa.gov/system/files/documents/2024-12/nrsa-2018-19-tsd-final-11252024.pdf" + }, + "verification": { + "epaClassColumn": "FISH_MMI_COND", + "checkedOn": "2026-09-28", + "n": 4892, + "agree": 4892, + "share": 1.0 + }, + "region": "CPL" + }, + "discipline": "Biology", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "community-dynamics", + "functionName": "Community dynamics", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-bent-mmi-bent", + "metricName": "Benthic macroinvertebrate MMI", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2018-19 benthic macroinvertebrate multimetric index benchmarks, NARS-9 region CPL", + "xLabel": "Benthic macroinvertebrate MMI (MMI points)", + "howToMeasure": "NRSA benthic macroinvertebrate multimetric index (0 to 100); higher is better. EPA's Wadeable Streams Assessment MMI of six metrics scored per NARS-9 region, the same index in every survey cycle; EPA's own condition benchmarks are the published criterion it can be scored against.", + "methodContext": "Computed, not read in the field. From the 11-transect composite D-frame net sample (500 micrometer mesh) and its fixed count laboratory subsample, score EPA's six regional benthic metrics with the published floor and ceiling values and rescale the sum to 0 to 100, as the 2018-19 technical support document describes.", + "curve": { + "layerName": "USEPA NRSA 2018-19 benthic macroinvertebrate multimetric index benchmarks, NARS-9 region CPL", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 22.235, + "y": 0.0 + }, + { + "x": 40.695, + "y": 0.39 + }, + { + "x": 54.895, + "y": 0.69 + }, + { + "x": 69.568333, + "y": 1.0 + } + ] + }, + "curveCaveats": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ], + "confidenceLabel": "Published benchmark", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "NRSA benthic macroinvertebrate MMI condition benchmarks, NARS-9 region CPL", + "easiMethod": null, + "catalogEntry": "nrsa-2018-19-benthic-mmi", + "region": "CPL", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "≥54.9 MMI points" + }, + { + "rating": "Fair", + "label": "≥40.7 to <54.9 MMI points" + }, + { + "rating": "Poor", + "label": "<40.7 MMI points" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "nars-regions", + "text": "Ecoregions Used in the National Aquatic Resource Surveys" + } + ], + "limitations": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "The benchmarks rest on EPA's least-disturbed reference sites and their disturbance-adjusted 5th and 25th percentiles, a definition of reference that need not match this assessment's landscape-pressure screen.", + "The index is defined by the NRSA benthic protocol and EPA's regional metric scoring; a value from another sampling method, count size, taxonomic resolution or scoring is not comparable with these benchmarks.", + "One set of benchmarks serves each NARS-9 region, wadeable and boatable sites alike; the benchmarks were set in 2008-09 and have not been revised." + ] + }, + "referenceSupport": { + "status": "published", + "level": null, + "levelLabel": "", + "regionCode": "34", + "regionName": "Western Gulf Coastal Plain", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 0, + "nComparable": 0, + "nUsable": 0, + "nLocal": 0, + "nHuc12": 0, + "disposition": "exploratory", + "family": "biology", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Scored against a published criterion for NARS-9 region CPL rather than against stations of this ecoregion. Its breakpoints are 40.7 and 54.9 MMI points. The criterion carries its own definition of reference, which need not match this assessment's.", + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 10, + "q25": 19.65000009536743, + "q50": 38.474998474121094, + "q75": 48.02250003814697 + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "publishedBenchmark": { + "benchmark": "NRSA benthic macroinvertebrate MMI condition benchmarks", + "methodKey": null, + "catalogEntry": "nrsa-2018-19-benthic-mmi", + "analyte": "benthic macroinvertebrate multimetric index", + "fraction": "index", + "citations": [ + "nrsa-2018-19", + "nars-regions" + ], + "sourceTier": "epa-national-survey-benchmark", + "confidence": "M", + "provisional": false, + "limitations": [ + "The benchmarks rest on EPA's least-disturbed reference sites and their disturbance-adjusted 5th and 25th percentiles, a definition of reference that need not match this assessment's landscape-pressure screen.", + "The index is defined by the NRSA benthic protocol and EPA's regional metric scoring; a value from another sampling method, count size, taxonomic resolution or scoring is not comparable with these benchmarks.", + "One set of benchmarks serves each NARS-9 region, wadeable and boatable sites alike; the benchmarks were set in 2008-09 and have not been revised." + ], + "unitConversion": "MMI points to MMI points x1.0", + "thresholdsSource": { + "document": "National Rivers and Streams Assessment 2018-2019 Technical Support Document, Version 1.1, EPA 841-R-22-005 (November 2023, updated September 2024)", + "table": "Table 5-3. 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0, + "nCurvesCarried": 0, + "nCurvesFlagged": 10, + "nCurvesEasiScreening": 0, + "nWithheld": 11, + "curvesByBasis": { + "published-benchmark": 5, + "national-reference": 2, + "regional-reference": 11 + }, + "statement": "Reference condition is set by a fixed landscape-pressure screen, never by a score. 11 borrow comparable least-disturbed stations from a wider region, stating the region and the transfer risk. 2 carry the national reference label: reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own. 5 carry the published benchmark label: scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's. 10 rest on a flagged transfer: a comparable least-disturbed pool the recovery test did not confirm for this ecoregion, used because no validated source supports the metric here, with transfer risk unvalidated and confidence capped. A metric that no basis supports is not scored, and the function it would have scored is reported as unassessed.", + "nHeldForReview": 0 + }, + "insufficientReferenceSupport": [ + { + "metricId": "spring-bent-ept-ntax", + "metricKey": "bent_EPT_NTAX", + "metricName": "EPT taxa richness", + "units": "", + "functions": [ + { + "functionId": "community-dynamics", + "functionName": "Community dynamics" + } + ], + "functionId": "community-dynamics", + "reason": "insufficient-reference-support", + "statement": "Insufficient reference support. No station pool, from this ecoregion's own least-disturbed streams or from a wider region under the regional screen, holds enough comparable stations with a value for this metric and passes acceptance. The local reference: 0 usable stations, below the floor of 10. This ecoregion under the regional screen: 0 usable stations, below the floor of 10. The Level II pool (9.5): 0 usable stations, below the floor of 10. The Level I pool (9): 4 usable stations, below the floor of 10. The NARS-9 pool (CPL): 5 usable stations, below the floor of 10. No other basis supports it either. National reference: 7 matched national donors, below the floor of 10. 1 national donors inside the comparability envelope, below the floor of 10. Modeled reference: The model registry holds no approved specification for this metric. Published benchmark: The published criteria STAF draws on include none for this metric. No curve was built and the metric is not scored.", + "levelsTried": [ + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l2", + "region_code": "9.5", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l1", + "region_code": "9", + "n_pool": 125, + "n_comparable": 4, + "n_usable": 4, + "n_local": 0 + }, + { + "level": "nars9", + "region_code": "CPL", + "n_pool": 102, + "n_comparable": 5, + "n_usable": 5, + "n_local": 0 + } + ], + "rungsTried": [ + { + "rung": "REF-12", + "why": "7 matched national donors, below the floor of 10. 1 national donors inside the comparability envelope, below the floor of 10." + }, + { + "rung": "REF-13", + "why": "The model registry holds no approved specification for this metric." + }, + { + "rung": "REF-14", + "why": "The published criteria STAF draws on include none for this metric.", + "condition": [ + "catalog", + "no entry" + ] + } + ] + }, + { + "metricId": "spring-bent-hprime", + "metricKey": "bent_HPRIME", + "metricName": "Shannon diversity (H')", + "units": "", + "functions": [ + { + "functionId": "community-dynamics", + "functionName": "Community dynamics" + } + ], + "functionId": "community-dynamics", + "reason": "insufficient-reference-support", + "statement": "Insufficient reference support. No station pool, from this ecoregion's own least-disturbed streams or from a wider region under the regional screen, holds enough comparable stations with a value for this metric and passes acceptance. The local reference: 0 usable stations, below the floor of 10. This ecoregion under the regional screen: 0 usable stations, below the floor of 10. The Level II pool (9.5): 0 usable stations, below the floor of 10. The Level I pool (9): 4 usable stations, below the floor of 10. The NARS-9 pool (CPL): 5 usable stations, below the floor of 10. No other basis supports it either. National reference: 7 matched national donors, below the floor of 10. 1 national donors inside the comparability envelope, below the floor of 10. Modeled reference: The low-disturbance training streams cover the natural setting of 0% of this ecoregion's streams, less than the 7% of the weakest region the model was validated in, so the prediction would extrapolate past where it was tested. Published benchmark: The published criteria STAF draws on include none for this metric. No curve was built and the metric is not scored.", + "levelsTried": [ + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l2", + "region_code": "9.5", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l1", + "region_code": "9", + "n_pool": 125, + "n_comparable": 4, + "n_usable": 4, + "n_local": 0 + }, + { + "level": "nars9", + "region_code": "CPL", + "n_pool": 102, + "n_comparable": 5, + "n_usable": 5, + "n_local": 0 + } + ], + "rungsTried": [ + { + "rung": "REF-12", + "why": "7 matched national donors, below the floor of 10. 1 national donors inside the comparability envelope, below the floor of 10." + }, + { + "rung": "REF-13", + "why": "The low-disturbance training streams cover the natural setting of 0% of this ecoregion's streams, less than the 7% of the weakest region the model was validated in, so the prediction would extrapolate past where it was tested." + }, + { + "rung": "REF-14", + "why": "The published criteria STAF draws on include none for this metric.", + "condition": [ + "catalog", + "no entry" + ] + } + ] + }, + { + "metricId": "spring-bent-tolrpind", + "metricKey": "bent_TOLRPIND", + "metricName": "Tolerant individuals (%) ~ HBI", + "units": "", + "functions": [ + { + "functionId": "community-dynamics", + "functionName": "Community dynamics" + } + ], + "functionId": "community-dynamics", + "reason": "insufficient-reference-support", + "statement": "Insufficient reference support. No station pool, from this ecoregion's own least-disturbed streams or from a wider region under the regional screen, holds enough comparable stations with a value for this metric and passes acceptance. The local reference: 0 usable stations, below the floor of 10. This ecoregion under the regional screen: 0 usable stations, below the floor of 10. The Level II pool (9.5): 0 usable stations, below the floor of 10. The Level I pool (9): 4 usable stations, below the floor of 10. The NARS-9 pool (CPL): 5 usable stations, below the floor of 10. No other basis supports it either. National reference: 7 matched national donors, below the floor of 10. 1 national donors inside the comparability envelope, below the floor of 10. Modeled reference: The model registry holds no approved specification for this metric. Published benchmark: The published criteria STAF draws on include none for this metric. No curve was built and the metric is not scored.", + "levelsTried": [ + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l2", + "region_code": "9.5", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l1", + "region_code": "9", + "n_pool": 125, + "n_comparable": 4, + "n_usable": 4, + "n_local": 0 + }, + { + "level": "nars9", + "region_code": "CPL", + "n_pool": 102, + "n_comparable": 5, + "n_usable": 5, + "n_local": 0 + } + ], + "rungsTried": [ + { + "rung": "REF-12", + "why": "7 matched national donors, below the floor of 10. 1 national donors inside the comparability envelope, below the floor of 10." + }, + { + "rung": "REF-13", + "why": "The model registry holds no approved specification for this metric." + }, + { + "rung": "REF-14", + "why": "The published criteria STAF draws on include none for this metric.", + "condition": [ + "catalog", + "no entry" + ] + } + ] + }, + { + "metricId": "spring-bent-totlntax", + "metricKey": "bent_TOTLNTAX", + "metricName": "Benthic total taxa richness", + "units": "", + "functions": [ + { + "functionId": "population-support", + "functionName": "Population support" + } + ], + "functionId": "population-support", + "reason": "insufficient-reference-support", + "statement": "Insufficient reference support. No station pool, from this ecoregion's own least-disturbed streams or from a wider region under the regional screen, holds enough comparable stations with a value for this metric and passes acceptance. The local reference: 0 usable stations, below the floor of 10. This ecoregion under the regional screen: 0 usable stations, below the floor of 10. The Level II pool (9.5): 0 usable stations, below the floor of 10. The Level I pool (9): 4 usable stations, below the floor of 10. The NARS-9 pool (CPL): 5 usable stations, below the floor of 10. No other basis supports it either. National reference: 7 matched national donors, below the floor of 10. 1 national donors inside the comparability envelope, below the floor of 10. Modeled reference: The model registry holds no approved specification for this metric. Published benchmark: Every published biological criterion in the STAF assessment library is scored on a state-specific field index (Michigan Procedure 51, the Carolina IBI scores, the Wisconsin and Minnesota IBIs), none of which can be computed from NRSA data, so none measures the same quantity as this metric. EPA's own NRSA benchmarks are set on its multimetric indices, which this assessment carries as metrics of their own; an index benchmark is never applied to one of the metrics the index is built from. No curve was built and the metric is not scored.", + "levelsTried": [ + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l2", + "region_code": "9.5", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l1", + "region_code": "9", + "n_pool": 125, + "n_comparable": 4, + "n_usable": 4, + "n_local": 0 + }, + { + "level": "nars9", + "region_code": "CPL", + "n_pool": 102, + "n_comparable": 5, + "n_usable": 5, + "n_local": 0 + } + ], + "rungsTried": [ + { + "rung": "REF-12", + "why": "7 matched national donors, below the floor of 10. 1 national donors inside the comparability envelope, below the floor of 10." + }, + { + "rung": "REF-13", + "why": "The model registry holds no approved specification for this metric." + }, + { + "rung": "REF-14", + "why": "Every published biological criterion in the STAF assessment library is scored on a state-specific field index (Michigan Procedure 51, the Carolina IBI scores, the Wisconsin and Minnesota IBIs), none of which can be computed from NRSA data, so none measures the same quantity as this metric. EPA's own NRSA benchmarks are set on its multimetric indices, which this assessment carries as metrics of their own; an index benchmark is never applied to one of the metrics the index is built from.", + "condition": [ + "catalog", + "no entry" + ] + } + ] + }, + { + "metricId": "spring-chem-chla", + "metricKey": "chem_CHLA", + "metricName": "Chlorophyll a", + "units": "ug/L", + "functions": [ + { + "functionId": "light-thermal-regime", + "functionName": "Light and thermal regime" + } + ], + "functionId": "light-thermal-regime", + "reason": "insufficient-reference-support", + "statement": "Insufficient reference support. No station pool, from this ecoregion's own least-disturbed streams or from a wider region under the regional screen, holds enough comparable stations with a value for this metric and passes acceptance. The local reference: 0 usable stations, below the floor of 10. This ecoregion under the regional screen: 0 usable stations, below the floor of 10. The Level II pool (9.5): 0 usable stations, below the floor of 10. The Level I pool (9): 0 usable stations, below the floor of 10. The NARS-9 pool (CPL): The pool is not stable, since one station moves a quartile by 0.36 of the interquartile range, more than 0.20. No other basis supports it either. National reference: 9 matched national donors, below the floor of 10. 5 national donors inside the comparability envelope, below the floor of 10. Modeled reference: The model registry holds no approved specification for this metric. Published benchmark: The published criteria STAF draws on include none for this metric. No curve was built and the metric is not scored.", + "levelsTried": [ + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l2", + "region_code": "9.5", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l1", + "region_code": "9", + "n_pool": 125, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "nars9", + "region_code": "CPL", + "n_pool": 102, + "n_comparable": 10, + "n_usable": 10, + "n_local": 0 + } + ], + "rungsTried": [ + { + "rung": "REF-12", + "why": "9 matched national donors, below the floor of 10. 5 national donors inside the comparability envelope, below the floor of 10." + }, + { + "rung": "REF-13", + "why": "The model registry holds no approved specification for this metric." + }, + { + "rung": "REF-14", + "why": "The published criteria STAF draws on include none for this metric.", + "condition": [ + "catalog", + "no entry" + ] + } + ] + }, + { + "metricId": "spring-chem-ph", + "metricKey": "chem_PH", + "metricName": "pH", + "units": "Std. Units", + "functions": [ + { + "functionId": "water-soil-quality", + "functionName": "Water and soil quality" + } + ], + "functionId": "water-soil-quality", + "reason": "insufficient-reference-support", + "statement": "Insufficient reference support. No station pool, from this ecoregion's own least-disturbed streams or from a wider region under the regional screen, holds enough comparable stations with a value for this metric and passes acceptance. The local reference: 0 usable stations, below the floor of 10. This ecoregion under the regional screen: 0 usable stations, below the floor of 10. The Level II pool (9.5): 0 usable stations, below the floor of 10. The Level I pool (9): 0 usable stations, below the floor of 10. The NARS-9 pool (CPL): The pool is not stable, since one station moves a quartile by 0.52 of the interquartile range, more than 0.20. No other basis supports it either. National reference: 9 matched national donors, below the floor of 10. 5 national donors inside the comparability envelope, below the floor of 10. Modeled reference: The model registry holds no approved specification for this metric. Published benchmark: The published criteria STAF draws on include no regional criterion for pH. NRSA rates acidity on acid neutralizing capacity together with dissolved organic carbon and sulfate, a different measurement from pH. No curve was built and the metric is not scored.", + "levelsTried": [ + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l2", + "region_code": "9.5", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l1", + "region_code": "9", + "n_pool": 125, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "nars9", + "region_code": "CPL", + "n_pool": 102, + "n_comparable": 10, + "n_usable": 10, + "n_local": 0 + } + ], + "rungsTried": [ + { + "rung": "REF-12", + "why": "9 matched national donors, below the floor of 10. 5 national donors inside the comparability envelope, below the floor of 10." + }, + { + "rung": "REF-13", + "why": "The model registry holds no approved specification for this metric." + }, + { + "rung": "REF-14", + "why": "The published criteria STAF draws on include no regional criterion for pH. NRSA rates acidity on acid neutralizing capacity together with dissolved organic carbon and sulfate, a different measurement from pH.", + "condition": [ + "catalog", + "no entry" + ] + } + ] + }, + { + "metricId": "spring-chem-turb", + "metricKey": "chem_TURB", + "metricName": "Turbidity", + "units": "NTU", + "functions": [ + { + "functionId": "water-soil-quality", + "functionName": "Water and soil quality" + } + ], + "functionId": "water-soil-quality", + "reason": "insufficient-reference-support", + "statement": "Insufficient reference support. No station pool, from this ecoregion's own least-disturbed streams or from a wider region under the regional screen, holds enough comparable stations with a value for this metric and passes acceptance. The local reference: 0 usable stations, below the floor of 10. This ecoregion under the regional screen: 0 usable stations, below the floor of 10. The Level II pool (9.5): 0 usable stations, below the floor of 10. The Level I pool (9): 0 usable stations, below the floor of 10. The NARS-9 pool (CPL): The curve on this pool would rank pressured stations above reference stations (discrimination check inverted, area under the curve 0.43 over 10 reference and 260 pressured stations), so it is refused under methodology 0.16 (owner decision D13). No other basis supports it either. National reference: 9 matched national donors, below the floor of 10. 5 national donors inside the comparability envelope, below the floor of 10. Modeled reference: The low-disturbance training streams cover the natural setting of 0% of this ecoregion's streams, less than the 7% of the weakest region the model was validated in, so the prediction would extrapolate past where it was tested. Published benchmark: The published criteria STAF draws on include no regional criterion for turbidity. No curve was built and the metric is not scored.", + "levelsTried": [ + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l2", + "region_code": "9.5", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l1", + "region_code": "9", + "n_pool": 125, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "nars9", + "region_code": "CPL", + "n_pool": 102, + "n_comparable": 10, + "n_usable": 10, + "n_local": 0 + } + ], + "rungsTried": [ + { + "rung": "REF-12", + "why": "9 matched national donors, below the floor of 10. 5 national donors inside the comparability envelope, below the floor of 10." + }, + { + "rung": "REF-13", + "why": "The low-disturbance training streams cover the natural setting of 0% of this ecoregion's streams, less than the 7% of the weakest region the model was validated in, so the prediction would extrapolate past where it was tested." + }, + { + "rung": "REF-14", + "why": "The published criteria STAF draws on include no regional criterion for turbidity.", + "condition": [ + "catalog", + "no entry" + ] + } + ] + }, + { + "metricId": "spring-fish-nat-totlntax", + "metricKey": "fish_NAT_TOTLNTAX", + "metricName": "Native fish taxa richness", + "units": "", + "functions": [ + { + "functionId": "population-support", + "functionName": "Population support" + } + ], + "functionId": "population-support", + "reason": "insufficient-reference-support", + "statement": "Insufficient reference support. No station pool, from this ecoregion's own least-disturbed streams or from a wider region under the regional screen, holds enough comparable stations with a value for this metric and passes acceptance. The local reference: 0 usable stations, below the floor of 10. This ecoregion under the regional screen: 0 usable stations, below the floor of 10. The Level II pool (9.5): 0 usable stations, below the floor of 10. The Level I pool (9): 4 usable stations, below the floor of 10. The NARS-9 pool (CPL): 5 usable stations, below the floor of 10. No other basis supports it either. National reference: 6 matched national donors, below the floor of 10. 1 national donors inside the comparability envelope, below the floor of 10. Modeled reference: The model registry holds no approved specification for this metric. Published benchmark: Every published biological criterion in the STAF assessment library is scored on a state-specific field index (Michigan Procedure 51, the Carolina IBI scores, the Wisconsin and Minnesota IBIs), none of which can be computed from NRSA data, so none measures the same quantity as this metric. EPA's own NRSA benchmarks are set on its multimetric indices, which this assessment carries as metrics of their own; an index benchmark is never applied to one of the metrics the index is built from. No curve was built and the metric is not scored.", + "levelsTried": [ + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l2", + "region_code": "9.5", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l1", + "region_code": "9", + "n_pool": 125, + "n_comparable": 4, + "n_usable": 4, + "n_local": 0 + }, + { + "level": "nars9", + "region_code": "CPL", + "n_pool": 102, + "n_comparable": 5, + "n_usable": 5, + "n_local": 0 + } + ], + "rungsTried": [ + { + "rung": "REF-12", + "why": "6 matched national donors, below the floor of 10. 1 national donors inside the comparability envelope, below the floor of 10." + }, + { + "rung": "REF-13", + "why": "The model registry holds no approved specification for this metric." + }, + { + "rung": "REF-14", + "why": "Every published biological criterion in the STAF assessment library is scored on a state-specific field index (Michigan Procedure 51, the Carolina IBI scores, the Wisconsin and Minnesota IBIs), none of which can be computed from NRSA data, so none measures the same quantity as this metric. EPA's own NRSA benchmarks are set on its multimetric indices, which this assessment carries as metrics of their own; an index benchmark is never applied to one of the metrics the index is built from.", + "condition": [ + "catalog", + "no entry" + ] + } + ] + }, + { + "metricId": "spring-phab-lsub-dmm", + "metricKey": "phab_LSUB_DMM", + "metricName": "Substrate size", + "units": "log mm", + "functions": [ + { + "functionId": "bed-composition-bedform-dynamics", + "functionName": "Bed composition and bedform dynamics" + } + ], + "functionId": "bed-composition-bedform-dynamics", + "reason": "insufficient-reference-support", + "statement": "Insufficient reference support. No station pool, from this ecoregion's own least-disturbed streams or from a wider region under the regional screen, holds enough comparable stations with a value for this metric and passes acceptance. The local reference: 0 usable stations, below the floor of 10. This ecoregion under the regional screen: 0 usable stations, below the floor of 10. The Level II pool (9.5): 0 usable stations, below the floor of 10. The Level I pool (9): 2 usable stations, below the floor of 10. The NARS-9 pool (CPL): The curve on this pool would rank pressured stations above reference stations (discrimination check inverted, area under the curve 0.39 over 21 reference and 258 pressured stations), so it is refused under methodology 0.16 (owner decision D13). No other basis supports it either. National reference: 15 matched national donors, but the curve on this pool would rank pressured stations above reference stations (discrimination check inverted, area under the curve 0.32 over 39 reference and 2030 pressured stations), so it is refused under methodology 0.16 (owner decision D13). 17 national donors inside the comparability envelope, but the donor pool is not stable, since one station moves a quartile by 0.30 of the interquartile range, more than 0.20. Modeled reference: A modeled specification for this metric passed the recovery test and waits for the owner's approval, so it is not used yet. Published benchmark: The published criteria STAF draws on include none for this metric. No curve was built and the metric is not scored.", + "levelsTried": [ + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l2", + "region_code": "9.5", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l1", + "region_code": "9", + "n_pool": 125, + "n_comparable": 2, + "n_usable": 2, + "n_local": 0 + }, + { + "level": "nars9", + "region_code": "CPL", + "n_pool": 102, + "n_comparable": 21, + "n_usable": 21, + "n_local": 0 + } + ], + "rungsTried": [ + { + "rung": "REF-12", + "why": "15 matched national donors, but the curve on this pool would rank pressured stations above reference stations (discrimination check inverted, area under the curve 0.32 over 39 reference and 2030 pressured stations), so it is refused under methodology 0.16 (owner decision D13). 17 national donors inside the comparability envelope, but the donor pool is not stable, since one station moves a quartile by 0.30 of the interquartile range, more than 0.20." + }, + { + "rung": "REF-13", + "why": "A modeled specification for this metric passed the recovery test and waits for the owner's approval, so it is not used yet." + }, + { + "rung": "REF-14", + "why": "The published criteria STAF draws on include none for this metric.", + "condition": [ + "catalog", + "no entry" + ] + } + ] + }, + { + "metricId": "spring-phab-pct-fast", + "metricKey": "phab_PCT_FAST", + "metricName": "Fast-water / riffle habitat", + "units": "%", + "functions": [ + { + "functionId": "habitat-provision", + "functionName": "Habitat provision" + } + ], + "functionId": "habitat-provision", + "reason": "insufficient-reference-support", + "statement": "Insufficient reference support. No station pool, from this ecoregion's own least-disturbed streams or from a wider region under the regional screen, holds enough comparable stations with a value for this metric and passes acceptance. The local reference: 0 usable stations, below the floor of 10. This ecoregion under the regional screen: 0 usable stations, below the floor of 10. The Level II pool (9.5): 0 usable stations, below the floor of 10. The Level I pool (9): 2 usable stations, below the floor of 10. The NARS-9 pool (CPL): The curve on this pool would be the engine's fallback ramp: the pool's lower quartile sits at or below zero on a scale that cannot go negative (curve status degenerate_q25), and a fallback curve is refused under methodology 0.16 (owner decision D13). No other basis supports it either. National reference: 15 matched national donors, but the curve on this pool would be the engine's fallback ramp: the pool's lower quartile sits at or below zero on a scale that cannot go negative (curve status degenerate_q25), and a fallback curve is refused under methodology 0.16 (owner decision D13). 17 national donors inside the comparability envelope, but the donor pool is not stable, since one station moves a quartile by 0.88 of the interquartile range, more than 0.20. Modeled reference: A modeled specification for this metric passed the recovery test and waits for the owner's approval, so it is not used yet. Published benchmark: The published criteria STAF draws on include none for this metric. No curve was built and the metric is not scored.", + "levelsTried": [ + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l2", + "region_code": "9.5", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l1", + "region_code": "9", + "n_pool": 125, + "n_comparable": 2, + "n_usable": 2, + "n_local": 0 + }, + { + "level": "nars9", + "region_code": "CPL", + "n_pool": 102, + "n_comparable": 21, + "n_usable": 21, + "n_local": 0 + } + ], + "rungsTried": [ + { + "rung": "REF-12", + "why": "15 matched national donors, but the curve on this pool would be the engine's fallback ramp: the pool's lower quartile sits at or below zero on a scale that cannot go negative (curve status degenerate_q25), and a fallback curve is refused under methodology 0.16 (owner decision D13). 17 national donors inside the comparability envelope, but the donor pool is not stable, since one station moves a quartile by 0.88 of the interquartile range, more than 0.20." + }, + { + "rung": "REF-13", + "why": "A modeled specification for this metric passed the recovery test and waits for the owner's approval, so it is not used yet." + }, + { + "rung": "REF-14", + "why": "The published criteria STAF draws on include none for this metric.", + "condition": [ + "catalog", + "no entry" + ] + } + ] + }, + { + "metricId": "spring-phab-pct-safn", + "metricKey": "phab_PCT_SAFN", + "metricName": "Sand + fines", + "units": "%", + "functions": [ + { + "functionId": "hyporheic-connectivity", + "functionName": "Hyporheic connectivity" + }, + { + "functionId": "sediment-continuity", + "functionName": "Sediment continuity" + } + ], + "functionId": "hyporheic-connectivity", + "reason": "insufficient-reference-support", + "statement": "Insufficient reference support. No station pool, from this ecoregion's own least-disturbed streams or from a wider region under the regional screen, holds enough comparable stations with a value for this metric and passes acceptance. The local reference: 0 usable stations, below the floor of 10. This ecoregion under the regional screen: 0 usable stations, below the floor of 10. The Level II pool (9.5): 0 usable stations, below the floor of 10. The Level I pool (9): 2 usable stations, below the floor of 10. The NARS-9 pool (CPL): The pool is not stable, since one station moves a quartile by 0.21 of the interquartile range, more than 0.20. No other basis supports it either. National reference: 15 matched national donors, but the curve on this pool would rank pressured stations above reference stations (discrimination check inverted, area under the curve 0.39 over 39 reference and 2030 pressured stations), so it is refused under methodology 0.16 (owner decision D13). 17 national donors inside the comparability envelope, but the curve on this pool would rank pressured stations above reference stations (discrimination check inverted, area under the curve 0.45 over 17 reference and 2030 pressured stations), so it is refused under methodology 0.16 (owner decision D13). Modeled reference: The model registry holds no approved specification for this metric. Published benchmark: The published criteria STAF draws on include none for this metric. No curve was built and the metric is not scored.", + "levelsTried": [ + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l3", + "region_code": "34", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l2", + "region_code": "9.5", + "n_pool": 0, + "n_comparable": 0, + "n_usable": 0, + "n_local": 0 + }, + { + "level": "l1", + "region_code": "9", + "n_pool": 125, + "n_comparable": 2, + "n_usable": 2, + "n_local": 0 + }, + { + "level": "nars9", + "region_code": "CPL", + "n_pool": 102, + "n_comparable": 21, + "n_usable": 21, + "n_local": 0 + } + ], + "rungsTried": [ + { + "rung": "REF-12", + "why": "15 matched national donors, but the curve on this pool would rank pressured stations above reference stations (discrimination check inverted, area under the curve 0.39 over 39 reference and 2030 pressured stations), so it is refused under methodology 0.16 (owner decision D13). 17 national donors inside the comparability envelope, but the curve on this pool would rank pressured stations above reference stations (discrimination check inverted, area under the curve 0.45 over 17 reference and 2030 pressured stations), so it is refused under methodology 0.16 (owner decision D13)." + }, + { + "rung": "REF-13", + "why": "The model registry holds no approved specification for this metric." + }, + { + "rung": "REF-14", + "why": "The published criteria STAF draws on include none for this metric.", + "condition": [ + "catalog", + "no entry" + ] + } + ] + } + ], + "contentDigest": "sha256:5e5fa2b7d4658d1a0a9fec1ea953ce9f61c3610fc882279f3a9d2c5354499b79", + "library": { + "libraryId": "western-gulf-coastal-plain", + "version": 1, + "updatedAt": "2026-09-30T07:04:26Z", + "author": "StreamCurves regional analysis (STAF)", + "revisionNotes": "Reference condition is the fixed landscape-pressure screen least-disturbed-v1 (strict), wadeable non-canal frame. 0 of 14 stations of this ecoregion pass. 0 reference curves use local stations, 11 borrow from a wider region, 5 metrics use fixed criteria, and 15 metrics are withheld for insufficient reference support. No station of this ecoregion passes the reference screen, so every reference curve here borrows its reference stations from a parent ecoregion.", + "region": { + "kind": "ecoregion", + "code": "34", + "name": "Western Gulf Coastal Plain" + }, + "contentDigest": "sha256:5e5fa2b7d4658d1a0a9fec1ea953ce9f61c3610fc882279f3a9d2c5354499b79", + "supersedesVersion": null + } +} diff --git a/library/western-gulf-coastal-plain-v1-calculator-f0b4a067.f0b4a067c5de.xlsx b/library/western-gulf-coastal-plain-v1-calculator-f0b4a067.f0b4a067c5de.xlsx new file mode 100644 index 0000000000000000000000000000000000000000..560d6325a15d60e53881db9f5b0aadd707fb2b00 Binary files /dev/null and b/library/western-gulf-coastal-plain-v1-calculator-f0b4a067.f0b4a067c5de.xlsx differ diff --git a/library/wi-sqt-adapted-v1-b17c6bca.deep.b17c6bcafff9.json b/library/wi-sqt-adapted-v1-b17c6bca.deep.b17c6bcafff9.json new file mode 100644 index 0000000000000000000000000000000000000000..3cf484d2029d752d2219379d29e756bbae0eb5df --- /dev/null +++ b/library/wi-sqt-adapted-v1-b17c6bca.deep.b17c6bcafff9.json @@ -0,0 +1,1632 @@ +{ + "schemaVersion": 1, + "tier": "detailed", + "assessmentId": "wi-sqt-adapted", + "assessmentName": "WI SQT Adapted", + "stateCode": "WI", + "stateName": "Wisconsin", + "sourceCitation": "Wisconsin SQT", + "applicability": "Wisconsin streams", + "metricsByFunction": [ + { + "functionId": "catchment-hydrology", + "functionName": "Catchment hydrology", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "catchment-hydrology-land-use-coefficient", + "metricName": "Land Use Coefficient", + "discipline": "Hydrology", + "inputType": "desktop (gis)", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Land Use Coefficient", + "metricStatement": "Catchment land cover/soil condition used as a surrogate for runoff/infiltration and stress from development or land conversion.", + "howToMeasure": "Delineate watershed for the reach; compute metric from land cover/impervious (e.g., NLCD) and/or soils (NRCS). Apply the state SQT scoring breakpoints.", + "methodContext": "Context: Watershed\n\nMethod: Desktop (GIS)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 55, + "y": 1 + }, + { + "x": 68, + "y": 0.7 + }, + { + "x": 75, + "y": 0.3 + }, + { + "x": 98, + "y": 0 + } + ] + } + } + ] + }, + { + "functionId": "reach-inflow", + "functionName": "Reach inflow", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "reach-inflow-concentrated-flow-point-index", + "metricName": "Concentrated Flow Point Index", + "discipline": "Hydrology", + "inputType": "field (with desktop pre-screen)", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Concentrated Flow Point Index", + "metricStatement": "Count of concentrated inflow locations (ditches, pipes, outfalls) that can deliver runoff, sediment, or pollutants to the reach.", + "howToMeasure": "Walk the reach (or use imagery pre-screen) and count concentrated inflow points; normalize by reach length (e.g., per 1,000 ft or per 100 m).", + "methodContext": "Context: Channel\n\nMethod: Field (with desktop pre-screen)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 0, + "y": 1 + }, + { + "x": 0.6, + "y": 0.3 + }, + { + "x": 1, + "y": 0 + } + ] + } + } + ] + }, + { + "functionId": "floodplain-connectivity", + "functionName": "Floodplain connectivity", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "floodplain-connectivity-entrenchment-ratio-er", + "metricName": "Entrenchment Ratio (ER)", + "discipline": "Hydraulics", + "inputType": "field (survey) or desktop (lidar cross sections)", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Entrenchment Ratio (ER)", + "metricStatement": "Degree of floodplain access during moderate floods; low ER indicates incision and reduced overbank connectivity.", + "howToMeasure": "Measure flood-prone width and bankfull width/depth per SQT method; compute ER = flood-prone width / bankfull width (or per SQT definition).", + "methodContext": "Context: Channel/Floodplain\n\nMethod: Field (survey) or Desktop (LiDAR cross sections)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT - C Stream Types", + "stratification": "C Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 2.2, + "y": 0.7 + }, + { + "x": 5, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "C Stream Types", + "layerName": "Wisconsin SQT - C Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 2.2, + "y": 0.7 + }, + { + "x": 5, + "y": 1 + } + ] + }, + { + "stratum": "E Stream Types", + "layerName": "Wisconsin SQT - E Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 2.2, + "y": 0.7 + }, + { + "x": 9, + "y": 1 + } + ] + }, + { + "stratum": "B Stream Types", + "layerName": "Wisconsin SQT - B Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 1.4, + "y": 0.7 + }, + { + "x": 2.2, + "y": 1 + } + ] + } + ], + "activeStratum": "C Stream Types" + } + ] + }, + { + "functionId": "channel-evolution", + "functionName": "Channel evolution", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "channel-evolution-width-depth-ratio-state", + "metricName": "Width/Depth Ratio State", + "discipline": "Geomorphology", + "inputType": "field (survey)", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Width/Depth Ratio State", + "metricStatement": "Channel dimension indicator used to infer incision/widening or departure from reference geometry.", + "howToMeasure": "Measure bankfull width and mean depth at representative cross sections; compute W/D and compare to expected (regional curves or SQT reference).", + "methodContext": "Context: Channel\n\nMethod: Field (survey)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 1, + "y": 1 + }, + { + "x": 1.8, + "y": 0 + } + ] + } + } + ] + }, + { + "functionId": "channel-floodplain-dynamics", + "functionName": "Channel and floodplain dynamics", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "channel-and-floodplain-dynamics-bank-height-ratio-bhr", + "metricName": "Bank Height Ratio (BHR)", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Bank Height Ratio (BHR)", + "metricStatement": "Bank stability/erosion and protection condition influencing channel change, sediment delivery, and habitat structure.", + "howToMeasure": "Map eroding and armored bank length, measure bank height and bankfull stage where needed, and/or score greenline stability per SQT protocol; compute percent lengths or ratios.", + "methodContext": "Context: Channel/Riparian\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 1, + "y": 1 + }, + { + "x": 1.5, + "y": 0.3 + } + ] + } + }, + { + "metricId": "channel-and-floodplain-dynamics-percent-streambank-armoring", + "metricName": "Percent Streambank Armoring", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Percent Streambank Armoring", + "metricStatement": "Bank stability/erosion and protection condition influencing channel change, sediment delivery, and habitat structure.", + "howToMeasure": "Map eroding and armored bank length, measure bank height and bankfull stage where needed, and/or score greenline stability per SQT protocol; compute percent lengths or ratios.", + "methodContext": "Context: Channel/Riparian\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 0, + "y": 1 + }, + { + "x": 50, + "y": 0 + } + ] + } + }, + { + "metricId": "channel-and-floodplain-dynamics-percent-streambank-erosion", + "metricName": "Percent Streambank Erosion", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Percent Streambank Erosion", + "metricStatement": "Bank stability/erosion and protection condition influencing channel change, sediment delivery, and habitat structure.", + "howToMeasure": "Map eroding and armored bank length, measure bank height and bankfull stage where needed, and/or score greenline stability per SQT protocol; compute percent lengths or ratios.", + "methodContext": "Context: Channel/Riparian\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 5, + "y": 1 + }, + { + "x": 11, + "y": 0.7 + }, + { + "x": 50, + "y": 0 + } + ] + } + } + ] + }, + { + "functionId": "bed-composition-bedform-dynamics", + "functionName": "Bed composition and large wood", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "bed-composition-and-large-wood-median-particle-size", + "metricName": "Median Particle Size", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Median Particle Size", + "metricStatement": "Streambed substrate size distribution used to infer habitat quality, sediment transport, and embeddedness/fine sediment stress.", + "howToMeasure": "Conduct pebble count or substrate characterization per SQT method; compute percent fines or D50 and apply scoring thresholds (stratified by bed type where needed).", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 10, + "y": 0 + }, + { + "x": 34, + "y": 0.7 + }, + { + "x": 70, + "y": 1 + } + ] + } + }, + { + "metricId": "bed-composition-and-large-wood-percent-fines-2mm", + "metricName": "Percent Fines < 2mm", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Percent Fines < 2mm", + "metricStatement": "Streambed substrate size distribution used to infer habitat quality, sediment transport, and embeddedness/fine sediment stress.", + "howToMeasure": "Conduct pebble count or substrate characterization per SQT method; compute percent fines or D50 and apply scoring thresholds (stratified by bed type where needed).", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 5, + "y": 1 + }, + { + "x": 14.8, + "y": 0.7 + }, + { + "x": 32, + "y": 0 + } + ] + } + }, + { + "metricId": "bed-composition-and-large-wood-percent-fines-6-35mm", + "metricName": "Percent Fines <6.35mm", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Percent Fines <6.35mm", + "metricStatement": "Streambed substrate size distribution used to infer habitat quality, sediment transport, and embeddedness/fine sediment stress.", + "howToMeasure": "Conduct pebble count or substrate characterization per SQT method; compute percent fines or D50 and apply scoring thresholds (stratified by bed type where needed).", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 5, + "y": 1 + }, + { + "x": 16.9, + "y": 0.7 + }, + { + "x": 35, + "y": 0 + } + ] + } + } + ] + }, + { + "functionId": "light-thermal-regime", + "functionName": "Light & thermal regime", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "light-and-thermal-regime-canopy-cover", + "metricName": "Canopy Cover", + "discipline": "Physicochemistry", + "inputType": "field and/or desktop", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Canopy Cover", + "metricStatement": "Riparian canopy cover that controls shading and thermal/light regime in the channel.", + "howToMeasure": "Measure percent canopy cover over the channel and near banks along the reach; score using SQT thresholds for the appropriate region/vegetation setting.", + "methodContext": "Context: Riparian/Channel\n\nMethod: Field and/or Desktop", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT - Woody Reference Vegetation Cover", + "stratification": "Woody Reference Vegetation Cover", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 50, + "y": 0.7 + }, + { + "x": 87, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Woody Reference Vegetation Cover", + "layerName": "Wisconsin SQT - Woody Reference Vegetation Cover", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 50, + "y": 0.7 + }, + { + "x": 87, + "y": 1 + } + ] + }, + { + "stratum": "Herbaceous Reference Vegetation Cover", + "layerName": "Wisconsin SQT - Herbaceous Reference Vegetation Cover", + "points": [ + { + "x": 0, + "y": 1 + }, + { + "x": 15, + "y": 0.7 + }, + { + "x": 35, + "y": 0.3 + }, + { + "x": 70, + "y": 0 + } + ] + } + ], + "activeStratum": "Woody Reference Vegetation Cover" + }, + { + "metricId": "light-and-thermal-regime-summer-mean-temperature", + "metricName": "Summer Mean Temperature", + "discipline": "Physicochemistry", + "inputType": "field (logger) and/or desktop (data compilation)", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Summer Mean Temperature", + "metricStatement": "Thermal condition (maximum or weekly average temperature) used to assess heat stress risk and habitat suitability.", + "howToMeasure": "Deploy temperature logger (or compile existing records) over summer season; compute statistic (daily max, MWAT, July mean) and score against stratified thresholds.", + "methodContext": "Context: Channel\n\nMethod: Field (logger) and/or Desktop (data compilation)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT - Cold", + "stratification": "Cold", + "points": [ + { + "x": 12.5, + "y": 1 + }, + { + "x": 17, + "y": 0.7 + }, + { + "x": 18.7, + "y": 0.3 + } + ] + }, + "curveLayers": [ + { + "stratum": "Cold", + "layerName": "Wisconsin SQT - Cold", + "points": [ + { + "x": 12.5, + "y": 1 + }, + { + "x": 17, + "y": 0.7 + }, + { + "x": 18.7, + "y": 0.3 + } + ] + }, + { + "stratum": "Cold Transition", + "layerName": "Wisconsin SQT - Cold Transition", + "points": [ + { + "x": 17, + "y": 1 + }, + { + "x": 18.7, + "y": 0.7 + } + ] + }, + { + "stratum": "Warm Transition", + "layerName": "Wisconsin SQT - Warm Transition", + "points": [ + { + "x": 18.7, + "y": 1 + }, + { + "x": 20.5, + "y": 0.7 + } + ] + }, + { + "stratum": "Warm", + "layerName": "Wisconsin SQT - Warm", + "points": [ + { + "x": 20.5, + "y": 1 + }, + { + "x": 23, + "y": 0.7 + } + ] + } + ], + "activeStratum": "Cold" + } + ] + }, + { + "functionId": "carbon-processing", + "functionName": "Carbon processing", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "carbon-processing-benthic-algal-biomass", + "metricName": "Benthic Algal Biomass", + "discipline": "Physicochemistry", + "inputType": "field (sampling/assay)", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Benthic Algal Biomass", + "metricStatement": "Indicator of primary production or detrital processing that supports food webs and stream metabolism.", + "howToMeasure": "Collect periphyton/algal samples (or estimate biomass) and compute chlorophyll-a or biomass metric; apply SQT thresholds by biotype.", + "methodContext": "Context: Channel\n\nMethod: Field (sampling/assay)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT - Field Value (Mean Score)", + "stratification": "Field Value (Mean Score)", + "points": [ + { + "x": 1, + "y": 0.7 + }, + { + "x": 2, + "y": 0.3 + } + ] + } + }, + { + "metricId": "carbon-processing-effective-vegetated-riparian-area", + "metricName": "Effective Vegetated Riparian Area", + "discipline": "Physicochemistry", + "inputType": "field and/or desktop (imagery/gis)", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Effective Vegetated Riparian Area", + "metricStatement": "Riparian vegetation condition and composition influencing organic matter inputs, bank stability, and habitat quality.", + "howToMeasure": "Measure riparian corridor attributes (extent, cover, composition, stem density, basal area) per SQT guidance and apply stratified thresholds (valley type/region).", + "methodContext": "Context: Riparian/Floodplain\n\nMethod: Field and/or Desktop (imagery/GIS)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT - Unconfined Alluvial", + "stratification": "Unconfined Alluvial", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 30, + "y": 0.3 + }, + { + "x": 100, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Unconfined Alluvial", + "layerName": "Wisconsin SQT - Unconfined Alluvial", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 30, + "y": 0.3 + }, + { + "x": 100, + "y": 1 + } + ] + }, + { + "stratum": "Confined and Colluvial", + "layerName": "Wisconsin SQT - Confined and Colluvial", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 60, + "y": 0.3 + }, + { + "x": 100, + "y": 1 + } + ] + } + ], + "activeStratum": "Unconfined Alluvial" + }, + { + "metricId": "carbon-processing-herbaceous-cover", + "metricName": "Herbaceous Cover", + "discipline": "Physicochemistry", + "inputType": "field and/or desktop (imagery/gis)", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Herbaceous Cover", + "metricStatement": "Riparian vegetation condition and composition influencing organic matter inputs, bank stability, and habitat quality.", + "howToMeasure": "Measure riparian corridor attributes (extent, cover, composition, stem density, basal area) per SQT guidance and apply stratified thresholds (valley type/region).", + "methodContext": "Context: Riparian/Floodplain\n\nMethod: Field and/or Desktop (imagery/GIS)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 80, + "y": 1 + } + ] + } + }, + { + "metricId": "carbon-processing-woody-stem-basal-area", + "metricName": "Woody Stem Basal Area", + "discipline": "Physicochemistry", + "inputType": "field and/or desktop (imagery/gis)", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Woody Stem Basal Area", + "metricStatement": "Riparian vegetation condition and composition influencing organic matter inputs, bank stability, and habitat quality.", + "howToMeasure": "Measure riparian corridor attributes (extent, cover, composition, stem density, basal area) per SQT guidance and apply stratified thresholds (valley type/region).", + "methodContext": "Context: Riparian/Floodplain\n\nMethod: Field and/or Desktop (imagery/GIS)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 9.2, + "y": 0.3 + }, + { + "x": 13.8, + "y": 1 + } + ] + } + } + ] + }, + { + "functionId": "nutrient-cycling", + "functionName": "Nutrient cycling", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "nutrient-cycling-diatom-phosphorus-index-dpi", + "metricName": "Diatom Phosphorus Index (DPI)", + "discipline": "Physicochemistry", + "inputType": "field (sampling) and/or desktop (data compilation)", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Diatom Phosphorus Index (DPI)", + "metricStatement": "Nutrient concentration or bioindicator of nutrient enrichment affecting productivity and eutrophication risk.", + "howToMeasure": "Collect and analyze TN/TP (or compute diatom-based nutrient index) for the reach and compare to SQT thresholds, accounting for stratified region classes.", + "methodContext": "Context: Channel\n\nMethod: Field (sampling) and/or Desktop (data compilation)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 75, + "y": 0.7 + }, + { + "x": 150, + "y": 0.3 + } + ] + } + } + ] + }, + { + "functionId": "habitat-provision", + "functionName": "Habitat provision", + "discipline": "Biology", + "metrics": [ + { + "metricId": "habitat-provision-lwd-frequency", + "metricName": "LWD Frequency", + "discipline": "Biology", + "inputType": "field", + "sourceCitation": "Wisconsin SQT", + "xLabel": "LWD Frequency", + "metricStatement": "In-stream habitat structure metric (pools/riffles/wood) indicating habitat diversity and cover for aquatic organisms.", + "howToMeasure": "Walk a representative reach and count large woody debris pieces/jams per unit length (e.g., per 100 m) following SQT definitions.", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 90, + "y": 0.7 + }, + { + "x": 171, + "y": 1 + } + ] + } + }, + { + "metricId": "habitat-provision-lwd-index", + "metricName": "LWD Index", + "discipline": "Biology", + "inputType": "field", + "sourceCitation": "Wisconsin SQT", + "xLabel": "LWD Index", + "metricStatement": "In-stream habitat structure metric (pools/riffles/wood) indicating habitat diversity and cover for aquatic organisms.", + "howToMeasure": "Walk a representative reach and count large woody debris pieces/jams per unit length (e.g., per 100 m) following SQT definitions.", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 1350, + "y": 0.7 + }, + { + "x": 2825, + "y": 1 + } + ] + } + }, + { + "metricId": "habitat-provision-percent-riffle", + "metricName": "Percent Riffle", + "discipline": "Biology", + "inputType": "field", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Percent Riffle", + "metricStatement": "In-stream habitat structure metric (pools/riffles/wood) indicating habitat diversity and cover for aquatic organisms.", + "howToMeasure": "Map riffle and pool units along the reach; compute ratios (pool spacing or pool depth ratio) or percent riffle by length following SQT definitions.", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT - A and B Stream Types", + "stratification": "A and B Stream Types", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 50, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "A and B Stream Types", + "layerName": "Wisconsin SQT - A and B Stream Types", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 50, + "y": 1 + } + ] + }, + { + "stratum": "C and E Stream Types", + "layerName": "Wisconsin SQT - C and E Stream Types", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 45, + "y": 1 + } + ] + } + ], + "activeStratum": "A and B Stream Types" + }, + { + "metricId": "habitat-provision-pool-depth-ratio", + "metricName": "Pool Depth Ratio", + "discipline": "Biology", + "inputType": "field", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Pool Depth Ratio", + "metricStatement": "In-stream habitat structure metric (pools/riffles/wood) indicating habitat diversity and cover for aquatic organisms.", + "howToMeasure": "Map riffle and pool units along the reach; compute ratios (pool spacing or pool depth ratio) or percent riffle by length following SQT definitions.", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 2, + "y": 0.7 + }, + { + "x": 3, + "y": 1 + } + ] + } + }, + { + "metricId": "habitat-provision-pool-spacing-ratio", + "metricName": "Pool Spacing Ratio", + "discipline": "Biology", + "inputType": "field", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Pool Spacing Ratio", + "metricStatement": "In-stream habitat structure metric (pools/riffles/wood) indicating habitat diversity and cover for aquatic organisms.", + "howToMeasure": "Map riffle and pool units along the reach; compute ratios (pool spacing or pool depth ratio) or percent riffle by length following SQT definitions.", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT - A and B Stream Types", + "stratification": "A and B Stream Types", + "points": [ + { + "x": 4, + "y": 1 + }, + { + "x": 5, + "y": 0.7 + }, + { + "x": 6.5, + "y": 0 + } + ] + }, + "curveLayers": [ + { + "stratum": "A and B Stream Types", + "layerName": "Wisconsin SQT - A and B Stream Types", + "points": [ + { + "x": 4, + "y": 1 + }, + { + "x": 5, + "y": 0.7 + }, + { + "x": 6.5, + "y": 0 + } + ] + }, + { + "stratum": "Bc Stream Types", + "layerName": "Wisconsin SQT - Bc Stream Types", + "points": [ + { + "x": 5, + "y": 1 + }, + { + "x": 6, + "y": 0.7 + }, + { + "x": 8, + "y": 0 + } + ] + }, + { + "stratum": "C and E Stream Types", + "layerName": "Wisconsin SQT - C and E Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 3.5, + 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"Wisconsin SQT", + "xLabel": "Fish Abundance", + "metricStatement": "Population abundance/biomass indicator reflecting recruitment and survival of target game/native species.", + "howToMeasure": "Estimate density/biomass (or % change from baseline) per SQT method and score using the appropriate tier/ribbon class thresholds.", + "methodContext": "Context: Channel\n\nMethod: Field (fish survey)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT - Adult Smallmouth Bass (Native)", + "stratification": "Adult Smallmouth Bass (Native)", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 28, + "y": 0.7 + }, + { + "x": 98, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Adult Smallmouth Bass (Native)", + "layerName": "Wisconsin SQT - Adult Smallmouth Bass (Native)", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 28, + "y": 0.7 + }, + { + "x": 98, + "y": 1 + } + ] + }, + { + "stratum": "Adult and Yearling Brown Trout", + "layerName": "Wisconsin SQT - Adult 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"discipline": "Biology", + "inputType": "field (bioassessment) and/or desktop (existing scores)", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Hilsenhoff Biotic Index (HBI)", + "metricStatement": "Biological integrity metric (IBI/MMI/OE) indicating whether habitat and water quality support native aquatic communities.", + "howToMeasure": "Collect biological samples per state protocol, calculate the relevant index (IBI/MMI/RIVPACS O/E), and compare to SQT thresholds for the appropriate region/biotype.", + "methodContext": "Context: Channel\n\nMethod: Field (bioassessment) and/or Desktop (existing scores)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 3.5, + "y": 1 + }, + { + "x": 4.5, + "y": 0.7 + }, + { + "x": 6.5, + "y": 0.3 + }, + { + "x": 10, + "y": 0 + } + ] + } + }, + { + "metricId": "population-support-mibi", + "metricName": "mIBI", + "discipline": "Biology", + "inputType": "field (bioassessment) 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"Land Use Coefficient", + "discipline": "Hydrology", + "inputType": "desktop (gis)", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Land Use Coefficient", + "metricStatement": "Catchment land cover/soil condition used as a surrogate for runoff/infiltration and stress from development or land conversion.", + "howToMeasure": "Delineate watershed for the reach; compute metric from land cover/impervious (e.g., NLCD) and/or soils (NRCS). Apply the state SQT scoring breakpoints.", + "methodContext": "Context: Watershed\n\nMethod: Desktop (GIS)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 55, + "y": 1 + }, + { + "x": 68, + "y": 0.7 + }, + { + "x": 75, + "y": 0.3 + }, + { + "x": 98, + "y": 0 + } + ] + } + } + ] + }, + { + "functionId": "reach-inflow", + "functionName": "Reach inflow", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "reach-inflow-concentrated-flow-point-index", + "metricName": "Concentrated Flow Point Index", + "discipline": "Hydrology", + "inputType": "field (with desktop pre-screen)", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Concentrated Flow Point Index", + "metricStatement": "Count of concentrated inflow locations (ditches, pipes, outfalls) that can deliver runoff, sediment, or pollutants to the reach.", + "howToMeasure": "Walk the reach (or use imagery pre-screen) and count concentrated inflow points; normalize by reach length (e.g., per 1,000 ft or per 100 m).", + "methodContext": "Context: Channel\n\nMethod: Field (with desktop pre-screen)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 0, + "y": 1 + }, + { + "x": 0.6, + "y": 0.3 + }, + { + "x": 1, + "y": 0 + } + ] + } + } + ] + }, + { + "functionId": "floodplain-connectivity", + "functionName": "Floodplain connectivity", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "floodplain-connectivity-entrenchment-ratio-er", + "metricName": "Entrenchment Ratio (ER)", + "discipline": "Hydraulics", + "inputType": "field (survey) or desktop (lidar cross sections)", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Entrenchment Ratio (ER)", + "metricStatement": "Degree of floodplain access during moderate floods; low ER indicates incision and reduced overbank connectivity.", + "howToMeasure": "Measure flood-prone width and bankfull width/depth per SQT method; compute ER = flood-prone width / bankfull width (or per SQT definition).", + "methodContext": "Context: Channel/Floodplain\n\nMethod: Field (survey) or Desktop (LiDAR cross sections)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT - C Stream Types", + "stratification": "C Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 2.2, + "y": 0.7 + }, + { + "x": 5, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "C Stream Types", + "layerName": "Wisconsin SQT - C Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 2.2, + "y": 0.7 + }, + { + "x": 5, + "y": 1 + } + ] + }, + { + "stratum": "E Stream Types", + "layerName": "Wisconsin SQT - E Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 2.2, + "y": 0.7 + }, + { + "x": 9, + "y": 1 + } + ] + }, + { + "stratum": "B Stream Types", + "layerName": "Wisconsin SQT - B Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 1.4, + "y": 0.7 + }, + { + "x": 2.2, + "y": 1 + } + ] + } + ], + "activeStratum": "C Stream Types" + } + ] + }, + { + "functionId": "channel-evolution", + "functionName": "Channel evolution", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "channel-evolution-width-depth-ratio-state", + "metricName": "Width/Depth Ratio State", + "discipline": "Geomorphology", + "inputType": "field (survey)", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Width/Depth Ratio State", + "metricStatement": "Channel dimension indicator used to infer incision/widening or departure from reference geometry.", + "howToMeasure": "Measure bankfull width and mean depth at representative cross sections; compute W/D and compare to expected (regional curves or SQT reference).", + "methodContext": "Context: Channel\n\nMethod: Field (survey)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 1, + "y": 1 + }, + { + "x": 1.8, + "y": 0 + } + ] + } + } + ] + }, + { + "functionId": "channel-floodplain-dynamics", + "functionName": "Channel and floodplain dynamics", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "channel-and-floodplain-dynamics-bank-height-ratio-bhr", + "metricName": "Bank Height Ratio (BHR)", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Bank Height Ratio (BHR)", + "metricStatement": "Bank stability/erosion and protection condition influencing channel change, sediment delivery, and habitat structure.", + "howToMeasure": "Map eroding and armored bank length, measure bank height and bankfull stage where needed, and/or score greenline stability per SQT protocol; compute percent lengths or ratios.", + "methodContext": "Context: Channel/Riparian\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 1, + "y": 1 + }, + { + "x": 1.5, + "y": 0.3 + } + ] + } + }, + { + "metricId": "channel-and-floodplain-dynamics-percent-streambank-armoring", + "metricName": "Percent Streambank Armoring", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Percent Streambank Armoring", + "metricStatement": "Bank stability/erosion and protection condition influencing channel change, sediment delivery, and habitat structure.", + "howToMeasure": "Map eroding and armored bank length, measure bank height and bankfull stage where needed, and/or score greenline stability per SQT protocol; compute percent lengths or ratios.", + "methodContext": "Context: Channel/Riparian\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 0, + "y": 1 + }, + { + "x": 50, + "y": 0 + } + ] + } + }, + { + "metricId": "channel-and-floodplain-dynamics-percent-streambank-erosion", + "metricName": "Percent Streambank Erosion", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Percent Streambank Erosion", + "metricStatement": "Bank stability/erosion and protection condition influencing channel change, sediment delivery, and habitat structure.", + "howToMeasure": "Map eroding and armored bank length, measure bank height and bankfull stage where needed, and/or score greenline stability per SQT protocol; compute percent lengths or ratios.", + "methodContext": "Context: Channel/Riparian\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 5, + "y": 1 + }, + { + "x": 11, + "y": 0.7 + }, + { + "x": 50, + "y": 0 + } + ] + } + } + ] + }, + { + "functionId": "bed-composition-bedform-dynamics", + "functionName": "Bed composition and large wood", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "bed-composition-and-large-wood-median-particle-size", + "metricName": "Median Particle Size", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Median Particle Size", + "metricStatement": "Streambed substrate size distribution used to infer habitat quality, sediment transport, and embeddedness/fine sediment stress.", + "howToMeasure": "Conduct pebble count or substrate characterization per SQT method; compute percent fines or D50 and apply scoring thresholds (stratified by bed type where needed).", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 10, + "y": 0 + }, + { + "x": 34, + "y": 0.7 + }, + { + "x": 70, + "y": 1 + } + ] + } + }, + { + "metricId": "bed-composition-and-large-wood-percent-fines-2mm", + "metricName": "Percent Fines < 2mm", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Percent Fines < 2mm", + "metricStatement": "Streambed substrate size distribution used to infer habitat quality, sediment transport, and embeddedness/fine sediment stress.", + "howToMeasure": "Conduct pebble count or substrate characterization per SQT method; compute percent fines or D50 and apply scoring thresholds (stratified by bed type where needed).", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 5, + "y": 1 + }, + { + "x": 14.8, + "y": 0.7 + }, + { + "x": 32, + "y": 0 + } + ] + } + }, + { + "metricId": "bed-composition-and-large-wood-percent-fines-6-35mm", + "metricName": "Percent Fines <6.35mm", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Percent Fines <6.35mm", + "metricStatement": "Streambed substrate size distribution used to infer habitat quality, sediment transport, and embeddedness/fine sediment stress.", + "howToMeasure": "Conduct pebble count or substrate characterization per SQT method; compute percent fines or D50 and apply scoring thresholds (stratified by bed type where needed).", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT", + "stratification": "", + "points": [ + { + "x": 5, + "y": 1 + }, + { + "x": 16.9, + "y": 0.7 + }, + { + "x": 35, + "y": 0 + } + ] + } + } + ] + }, + { + "functionId": "light-thermal-regime", + "functionName": "Light & thermal regime", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "light-and-thermal-regime-canopy-cover", + "metricName": "Canopy Cover", + "discipline": "Physicochemistry", + "inputType": "field and/or desktop", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Canopy Cover", + "metricStatement": "Riparian canopy cover that controls shading and thermal/light regime in the channel.", + "howToMeasure": "Measure percent canopy cover over the channel and near banks along the reach; score using SQT thresholds for the appropriate region/vegetation setting.", + "methodContext": "Context: Riparian/Channel\n\nMethod: Field and/or Desktop", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT - Woody Reference Vegetation Cover", + "stratification": "Woody Reference Vegetation Cover", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 50, + "y": 0.7 + }, + { + "x": 87, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Woody Reference Vegetation Cover", + "layerName": "Wisconsin SQT - Woody Reference Vegetation Cover", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 50, + "y": 0.7 + }, + { + "x": 87, + "y": 1 + } + ] + }, + { + "stratum": "Herbaceous Reference Vegetation Cover", + "layerName": "Wisconsin SQT - Herbaceous Reference Vegetation Cover", + "points": [ + { + "x": 0, + "y": 1 + }, + { + "x": 15, + "y": 0.7 + }, + { + "x": 35, + "y": 0.3 + }, + { + "x": 70, + "y": 0 + } + ] + } + ], + "activeStratum": "Woody Reference Vegetation Cover" + }, + { + "metricId": "light-and-thermal-regime-summer-mean-temperature", + "metricName": "Summer Mean Temperature", + "discipline": "Physicochemistry", + "inputType": "field (logger) and/or desktop (data compilation)", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Summer Mean Temperature", + "metricStatement": "Thermal condition (maximum or weekly average temperature) used to assess heat stress risk and habitat suitability.", + "howToMeasure": "Deploy temperature logger (or compile existing records) over summer season; compute statistic (daily max, MWAT, July mean) and score against stratified thresholds.", + "methodContext": "Context: Channel\n\nMethod: Field (logger) and/or Desktop (data compilation)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT - Cold", + "stratification": "Cold", + "points": [ + { + "x": 12.5, + "y": 1 + }, + { + "x": 17, + "y": 0.7 + }, + { + "x": 18.7, + "y": 0.3 + } + ] + }, + "curveLayers": [ + { + "stratum": "Cold", + "layerName": "Wisconsin SQT - Cold", + "points": [ + { + "x": 12.5, + "y": 1 + }, + { + "x": 17, + "y": 0.7 + }, + { + "x": 18.7, + "y": 0.3 + } + ] + }, + { + "stratum": "Cold Transition", + "layerName": "Wisconsin SQT - Cold Transition", + "points": [ + { + "x": 17, + "y": 1 + }, + { + "x": 18.7, + "y": 0.7 + } + ] + }, + { + "stratum": "Warm Transition", + "layerName": "Wisconsin SQT - Warm Transition", + "points": [ + { + "x": 18.7, + "y": 1 + }, + { + "x": 20.5, + "y": 0.7 + } + ] + }, + { + "stratum": "Warm", + "layerName": "Wisconsin SQT - Warm", + "points": [ + { + "x": 20.5, + "y": 1 + }, + { + "x": 23, + "y": 0.7 + } + ] + } + ], + "activeStratum": "Cold" + } + ] + }, + { + "functionId": "carbon-processing", + "functionName": "Carbon processing", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "carbon-processing-benthic-algal-biomass", + "metricName": "Benthic Algal Biomass", + "discipline": "Physicochemistry", + "inputType": "field (sampling/assay)", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Benthic Algal Biomass", + "metricStatement": "Indicator of primary production or detrital processing that supports food webs and stream metabolism.", + "howToMeasure": "Collect periphyton/algal samples (or estimate biomass) and compute chlorophyll-a or biomass metric; apply SQT thresholds by biotype.", + "methodContext": "Context: Channel\n\nMethod: Field (sampling/assay)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT - Field Value (Mean Score)", + "stratification": "Field Value (Mean Score)", + "points": [ + { + "x": 1, + "y": 0.7 + }, + { + "x": 2, + "y": 0.3 + } + ] + } + }, + { + "metricId": "carbon-processing-effective-vegetated-riparian-area", + "metricName": "Effective Vegetated Riparian Area", + "discipline": "Physicochemistry", + "inputType": "field and/or desktop (imagery/gis)", + "sourceCitation": "Wisconsin SQT", + "xLabel": "Effective Vegetated Riparian Area", + "metricStatement": "Riparian vegetation condition and composition influencing organic matter inputs, bank stability, and habitat quality.", + "howToMeasure": "Measure riparian corridor attributes (extent, cover, composition, stem density, basal area) per SQT guidance and apply stratified thresholds (valley type/region).", + "methodContext": "Context: Riparian/Floodplain\n\nMethod: Field and/or Desktop (imagery/GIS)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wisconsin SQT - Unconfined Alluvial", + "stratification": "Unconfined Alluvial", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 30, + "y": 0.3 + }, + { + "x": 100, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Unconfined Alluvial", + "layerName": "Wisconsin SQT - Unconfined Alluvial", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 30, + "y": 0.3 + }, + { + "x": 100, + "y": 1 + } + ] + }, + { + "stratum": "Confined and Colluvial", + "layerName": "Wisconsin SQT - Confined and Colluvial", + "points": [ + { + "x": 0, 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Stream Quantification Tool publishes no curve for this function, and this assessment transcribes that tool's curves as published.", + "recordedBy": "GM", + "recordedAt": "2026-09-24" + }, + { + "functionId": "streamflow-regime", + "functionName": "Streamflow regime", + "discipline": "Hydrology", + "reason": "deferred-to-other-tier", + "justification": "The Wisconsin Stream Quantification Tool addresses this function only with a screening-tier metric (Flashiness / Rate & Frequency of Change; Flow Alteration (Regulation / Water Use)), which has no curve. This assessment transcribes the tool's curves, so the function is left to the screening tier.", + "recordedBy": "GM", + "recordedAt": "2026-09-24" + }, + { + "functionId": "low-flow-baseflow-dynamics", + "functionName": "Low flow and baseflow dynamics", + "discipline": "Hydraulics", + "reason": "no-suitable-metric", + "justification": "The Wisconsin Stream Quantification Tool publishes no curve for this function, and this assessment transcribes that tool's curves as published.", + "recordedBy": "GM", + "recordedAt": "2026-09-24" + }, + { + "functionId": "high-flow-dynamics", + "functionName": "High flow dynamics", + "discipline": "Hydraulics", + "reason": "no-suitable-metric", + "justification": "The Wisconsin Stream Quantification Tool publishes no curve for this function, and this assessment transcribes that tool's curves as published.", + "recordedBy": "GM", + "recordedAt": "2026-09-24" + }, + { + "functionId": "hyporheic-connectivity", + "functionName": "Hyporheic connectivity", + "discipline": "Hydraulics", + "reason": "no-suitable-metric", + "justification": "The Wisconsin Stream Quantification Tool publishes no curve for this function, and this assessment transcribes that tool's curves as published.", + "recordedBy": "GM", + "recordedAt": "2026-09-24" + }, + { + "functionId": "sediment-continuity", + "functionName": "Sediment continuity", + "discipline": "Geomorphology", + "reason": "no-suitable-metric", + "justification": "The Wisconsin Stream Quantification Tool publishes no curve for this function, and this assessment transcribes that tool's curves as published.", + "recordedBy": "GM", + "recordedAt": "2026-09-24" + }, + { + "functionId": "water-soil-quality", + "functionName": "Water & soil quality", + "discipline": "Physicochemistry", + "reason": "deferred-to-other-tier", + "justification": "The Wisconsin Stream Quantification Tool addresses this function only with a screening-tier metric (Regulatory Impairment Status (305b/303d/TMDL)), which has no curve. This assessment transcribes the tool's curves, so the function is left to the screening tier.", + "recordedBy": "GM", + "recordedAt": "2026-09-24" + }, + { + "functionId": "community-dynamics", + "functionName": "Community dynamics", + "discipline": "Biology", + "reason": "no-suitable-metric", + "justification": "The Wisconsin Stream Quantification Tool publishes no curve for this function, and this assessment transcribes that tool's curves as published.", + "recordedBy": "GM", + "recordedAt": "2026-09-24" + }, + { + "functionId": "watershed-connectivity", + "functionName": "Watershed connectivity", + "discipline": "Biology", + "reason": "deferred-to-other-tier", + "justification": "The Wisconsin Stream Quantification Tool addresses this function only with a screening-tier metric (Adjacent Reach Condition for Recruitment (hardened/embedded); Fish Passage & Barrier Effects (longitudinal connectivity)), which has no curve. This assessment transcribes the tool's curves, so the function is left to the screening tier.", + "recordedBy": "GM", + "recordedAt": "2026-09-24" + } + ] + }, + "library": { + "libraryId": "wi-sqt-adapted", + "version": 2, + "updatedAt": "2026-09-24T15:33:34Z", + "author": "GM", + "revisionNotes": "The complete StreamCurves session for the state SQT transcribed in v1: every curve and stratum carried as the tool publishes it (State SQT), the function mapping, the documented gaps and the approved metric sets. Scores exactly as v1; known defects and open ends are stated as caveats.", + "region": { + "kind": "state", + "code": "WI", + "name": "Wisconsin" + }, + "contentDigest": "sha256:91c5d84688ed1bffb97ce69ca6dc18b9498cb9515ba17af8cdbbe59df7fc4b2b", + "supersedesVersion": 1 + } +} diff --git a/library/willamette-valley-v1-6703f2df.deep.6703f2df2550.json b/library/willamette-valley-v1-6703f2df.deep.6703f2df2550.json new file mode 100644 index 0000000000000000000000000000000000000000..ed5e6b702fd4651d55edc45b0f6d8ad52a2e325d --- /dev/null +++ b/library/willamette-valley-v1-6703f2df.deep.6703f2df2550.json @@ -0,0 +1,5260 @@ +{ + "schemaVersion": 1, + "tier": "detailed", + "assessmentId": "willamette-valley", + "assessmentName": "Willamette Valley reference assessment", + "stateCode": "", + "stateName": "", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "applicability": "Willamette Valley", + "metricsByFunction": [ + { + "functionId": "catchment-hydrology", + "functionName": "Catchment hydrology", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-pctimp2019ws", + "metricName": "Impervious surface", + "inputType": "proportion", + "sourceCitation": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "xLabel": "Impervious surface (%)", + "howToMeasure": "Impervious surface (%) is scored on the same fixed criteria EASI uses in every region. Good <10%, Fair 10-25%, Poor >25%.", + "methodContext": "Percent of the watershed in impervious surface. DEEP computes it for the delineated watershed. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 10.0, + "y": 0.69 + }, + { + "x": 25.005, + "y": 0.39 + }, + { + "x": 44.5115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Catchment hydrology (land-cover pressure)", + "easiMethod": "catchment-land-cover-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<10%" + }, + { + "rating": "Fair", + "label": "10-25%" + }, + { + "rating": "Poor", + "label": ">25%" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "schueler-1994", + "text": "Schueler 1994, The importance of imperviousness" + }, + { + "key": "allan-2004", + "text": "Allan 2004, Landscapes and riverscapes: the influence of land use on stream ecosystems" + }, + { + "key": "wang-1997", + "text": "Wang et al. 1997, Influences of watershed land use on habitat quality and biotic integrity in Wisconsin streams" + }, + { + "key": "king-2011", + "text": "King et al. 2011, Stream community thresholds at exceptionally low levels of catchment urbanization" + } + ], + "limitations": [ + "The worse input governs because hydrologic alteration through one pathway is not offset by low pressure in the other.", + "Agricultural bands are national screening tiers, not ecological criteria.", + "A result computed from one input is labeled partial.", + "Sensitive macroinvertebrate taxa decline well below the 10 percent impervious Good boundary (community thresholds near 0.5 to 2 percent), so a Good rating is not a no-effect finding (King et al. 2011)." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + }, + { + "metricId": "spring-pctag2019ws", + "metricName": "Agriculture, crop and hay", + "inputType": "proportion", + "sourceCitation": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "xLabel": "Agriculture, crop and hay (%)", + "howToMeasure": "Agriculture, crop and hay (%) is scored on the same fixed criteria EASI uses in every region. Good <30%, Fair 30-50%, Poor >50%.", + "methodContext": "Percent of the watershed in cultivated crops plus hay and pasture. DEEP computes it for the delineated watershed. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 30.0, + "y": 0.69 + }, + { + "x": 50.005, + "y": 0.39 + }, + { + "x": 76.0115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Catchment hydrology (land-cover pressure)", + "easiMethod": "catchment-land-cover-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<30%" + }, + { + "rating": "Fair", + "label": "30-50%" + }, + { + "rating": "Poor", + "label": ">50%" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "schueler-1994", + "text": "Schueler 1994, The importance of imperviousness" + }, + { + "key": "allan-2004", + "text": "Allan 2004, Landscapes and riverscapes: the influence of land use on stream ecosystems" + }, + { + "key": "wang-1997", + "text": "Wang et al. 1997, Influences of watershed land use on habitat quality and biotic integrity in Wisconsin streams" + }, + { + "key": "king-2011", + "text": "King et al. 2011, Stream community thresholds at exceptionally low levels of catchment urbanization" + } + ], + "limitations": [ + "The worse input governs because hydrologic alteration through one pathway is not offset by low pressure in the other.", + "Agricultural bands are national screening tiers, not ecological criteria.", + "A result computed from one input is labeled partial.", + "Sensitive macroinvertebrate taxa decline well below the 10 percent impervious Good boundary (community thresholds near 0.5 to 2 percent), so a Good rating is not a no-effect finding (King et al. 2011)." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "surface-water-storage", + "functionName": "Surface water storage", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-pctwet2019ws", + "metricName": "Wetland cover of the watershed", + "inputType": "proportion", + "sourceCitation": "Adopted EASI screening method (provisional), Wetland extent", + "xLabel": "Wetland cover of the watershed (%)", + "howToMeasure": "Wetland cover of the watershed (%) is scored on EASI's national screening method, Wetland extent, adopted because no other source supports this function here. Good >5%, Fair 1-5%, Poor <1%.", + "methodContext": "Watershed wetland cover (NLCD 2019 woody plus herbaceous wetland, percent of the watershed) from the StreamCat lookup engine or the STAF site engine; DEEP fills it from the desktop analysis and the user may correct it.", + "curve": { + "layerName": "Adopted EASI screening method (provisional), Wetland extent", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.315468 + }, + { + "x": 0.995, + "y": 0.39 + }, + { + "x": 5.0, + "y": 0.69 + }, + { + "x": 9.1385, + "y": 1.0 + } + ] + }, + "metricRole": "last_resort", + "curveCaveats": [ + "An EASI screening method is a provisional national judgment that rates the quantity the same way in every region. It is not an estimate of this ecoregion's reference condition, and its confidence is capped.", + "Rated on EASI's national wetland-extent bands, which rate a watershed with no mapped wetland Poor. Least-disturbed watersheds of this ecoregion carry little or no wetland, so the rating cannot tell natural absence from loss: read a Fair or Poor rating with that in mind.", + "Natural wetland abundance varies substantially among regions." + ], + "confidenceLabel": "EASI screening method (provisional)", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Wetland extent", + "easiMethod": "watershed-wetland-extent", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": ">5%" + }, + { + "rating": "Fair", + "label": "1-5%" + }, + { + "rating": "Poor", + "label": "<1%" + } + ], + "citations": [ + { + "key": "streamcat", + "text": "EPA StreamCat Metrics and Definitions" + }, + { + "key": "cbp-wetland-review", + "text": "Chesapeake Bay Program 2016, Wetland Expert Panel literature review (Appendix B)" + } + ], + "limitations": [ + "Natural wetland abundance varies substantially among regions." + ] + }, + "referenceSupport": { + "status": "published", + "level": null, + "levelLabel": "", + "regionCode": "3", + "regionName": "Willamette Valley", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 0, + "nComparable": 0, + "nUsable": 0, + "nLocal": 0, + "nHuc12": 0, + "disposition": "exploratory", + "family": "hydrology", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Scored on EASI's national screening method for this quantity, adopted because no reference pool, national donor, model or published benchmark supported a curve for this function in this ecoregion. No source supports Surface water storage in this ecoregion: pctwet2019ws (The local reference: 1 usable stations, below the floor of 10; This ecoregion under the regional screen: 1 usable stations, below the floor of 10; The Level II pool (7.1): 9 usable stations, below the floor of 10; The Level I pool (7): 9 usable stations, below the floor of 10; The NARS-9 pool (WMT): The curve on this pool would rank pressured stations above reference stations (discrimination check inverted, area under the curve 0.43 over 43 reference and 131 pressured stations), so it is refused under methodology 0.16 (owner decision D13)). Completed by EASI's national screening method, Wetland extent, adopted under REF-17 (owner decision D19).", + "basis": "easi-screening-method", + "basisLabel": "Adopted from EASI's national screening method (provisional)", + "basisStatement": "Scored on EASI's national screening method for this quantity, adopted because no reference pool, national donor, model or published benchmark supported a curve for this function in this ecoregion.", + "basisLimit": "An EASI screening method is a provisional national judgment that rates the quantity the same way in every region. It is not an estimate of this ecoregion's reference condition, and its confidence is capped." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 0.3475, + "q50": 0.75, + "q75": 1.5250000000000001 + }, + "basis": "easi-screening-method", + "basisLabel": "Adopted from EASI's national screening method (provisional)", + "basisStatement": "Scored on EASI's national screening method for this quantity, adopted because no reference pool, national donor, model or published benchmark supported a curve for this function in this ecoregion.", + "basisLimit": "An EASI screening method is a provisional national judgment that rates the quantity the same way in every region. It is not an estimate of this ecoregion's reference condition, and its confidence is capped.", + "adoptedMethod": { + "rule": "REF-17", + "ownerDecision": "D19 (2026-09-28)", + "curveSet": null, + "easiMethod": "watershed-wetland-extent", + "easiMetricId": "surface-water-storage-percent-wetlands-in-watershed", + "title": "Wetland extent", + "basisClass": "provisional STAF screening judgment", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": ">5%" + }, + { + "rating": "Fair", + "label": "1-5%" + }, + { + "rating": "Poor", + "label": "<1%" + } + ], + "citations": [ + { + "key": "streamcat", + "text": "EPA StreamCat Metrics and Definitions" + }, + { + "key": "cbp-wetland-review", + "text": "Chesapeake Bay Program 2016, Wetland Expert Panel literature review (Appendix B)" + } + ], + "limitations": [ + "Natural wetland abundance varies substantially among regions." + ], + "requiredInput": "Watershed wetland cover (NLCD 2019 woody plus herbaceous wetland, percent of the watershed) from the StreamCat lookup engine or the STAF site engine; DEEP fills it from the desktop analysis and the user may correct it.", + "followUp": "Provisional: a regional method for this function in this ecoregion is an open follow-up in StreamCurves." + }, + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "reach-inflow", + "functionName": "Reach inflow", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-rddensws", + "metricName": "Road density", + "inputType": "continuous", + "sourceCitation": "EASI fixed criteria, Road-density proxy for concentrated inflow pressure", + "xLabel": "Road density (km/sq km)", + "howToMeasure": "Road density (km/sq km) is scored on the same fixed criteria EASI uses in every region. Good <1 km/km², Fair 1-<3 km/km², Poor ≥3 km/km².", + "methodContext": "Road length per square kilometer of watershed. DEEP computes it for the delineated watershed. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Road-density proxy for concentrated inflow pressure", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 1.0, + "y": 0.69 + }, + { + "x": 3.0, + "y": 0.39 + }, + { + "x": 5.6, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Road-density proxy for concentrated inflow pressure", + "easiMethod": "road-density-inflow-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<1 km/km²" + }, + { + "rating": "Fair", + "label": "1-<3 km/km²" + }, + { + "rating": "Poor", + "label": "≥3 km/km²" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "usfs-wcf", + "text": "USDA Forest Service 2011, Watershed Condition Classification Technical Guide (FS-978)" + } + ], + "limitations": [ + "Road density does not count actual outfalls or establish whether runoff is treated.", + "The 1 km/km² breakpoint is a screening judgment.", + "USFS watershed-condition guidance classes road density more strictly (good under 1, impaired over 2.4 miles per square mile, about 0.62 and 1.49 km/km²), derived from salmonid watersheds. EASI keeps the NRSA-anchored national screen and discloses the stricter alternative." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "streamflow-regime", + "functionName": "Streamflow regime", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-bfiws", + "metricName": "Base flow index", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Base flow index (%)", + "howToMeasure": "Base-flow index (% of streamflow from baseflow); a higher baseflow share indicates a more stable, groundwater-supported flow regime. Moderate confidence: hydrogeology sets the baseline, so a naturally flashy till catchment reads low without being degraded (see the natural-context criterion below). Scored because flow alteration and withdrawal also move it.", + "methodContext": "Base flow index of the watershed, the percent of streamflow that comes from base flow (USGS base flow index grid). DEEP reads it from EPA StreamCat for the reach. Nothing is measured in the field.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 20.678882142857145, + "y": 0.3 + }, + { + "x": 48.250725, + "y": 0.7 + }, + { + "x": 69.867075, + "y": 1.0 + }, + { + "x": 80.67525, + "y": 1.0 + } + ] + }, + "referenceN": 20, + "curveCaveats": [ + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.37 of evaluation regions; two thirds required; net optimism +0.11, at most 0.05 allowed); confidence capped at 39.", + "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "criteriaBasis": "reference", + "referenceSupport": { + "status": "national", + "level": null, + "levelLabel": "", + "regionCode": "national", + "regionName": "National least-disturbed pool", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 769, + "nComparable": 20, + "nUsable": 20, + "nLocal": 0, + "nHuc12": 20, + "disposition": "adequate", + "family": "hydrology", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "unvalidated", + "transferNote": "20 least-disturbed stations from the national pool, the three nearest to each of this ecoregion's streams on the natural setting that governs this metric family, none inside this ecoregion. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.37 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.11, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "3c_matched", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.3684, + "net_opt": 0.1111, + "n_cells": 19, + "c1_share": 0.0 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 47.423625, + "q50": 51.0527, + "q75": 64.92739999999999 + }, + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it.", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "3c_matched", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.3684, + "net_opt": 0.1111, + "n_cells": 19, + "c1_share": 0.0 + }, + "transferNote": "20 least-disturbed stations from the national pool, the three nearest to each of this ecoregion's streams on the natural setting that governs this metric family, none inside this ecoregion. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.37 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.11, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydrology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-dorws", + "metricName": "Degree of regulation", + "inputType": "continuous", + "sourceCitation": "EASI fixed criteria, Flow alteration (degree of regulation)", + "xLabel": "Degree of regulation (%)", + "howToMeasure": "Degree of regulation (%) is scored on the same fixed criteria EASI uses in every region. Good <2%, Fair 2-15%, Poor >15%.", + "methodContext": "Degree of regulation, the normal storage of upstream dams as a percent of mean annual runoff. DEEP reads both from EPA StreamCat for the reach. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Flow alteration (degree of regulation)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 2.0, + "y": 0.69 + }, + { + "x": 15.005, + "y": 0.39 + }, + { + "x": 31.9115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Flow alteration (degree of regulation)", + "easiMethod": "degree-of-regulation", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "<2%" + }, + { + "rating": "Fair", + "label": "2-15%" + }, + { + "rating": "Poor", + "label": ">15%" + } + ], + "citations": [ + { + "key": "streamcat", + "text": "EPA StreamCat Metrics and Definitions" + }, + { + "key": "lehner-2011", + "text": "Lehner et al. 2011, High-resolution mapping of the world's reservoirs and dams" + }, + { + "key": "grill-2019", + "text": "Grill et al. 2019, Mapping the world's free-flowing rivers" + } + ], + "limitations": [ + "Degree of regulation does not describe operating rules, diversions, seasonality, or dam location on the network.", + "Missing or non-positive runoff is not converted to zero and leaves the metric unscored." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "low-flow-baseflow-dynamics", + "functionName": "Low flow and baseflow dynamics", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-phab-bfwd-rat", + "metricName": "Bankfull width:depth ratio", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull width:depth ratio", + "howToMeasure": "Bankfull width-to-depth ratio; both over-widened (very high) and incised (very low) degrade condition. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the bankfull width and the bankfull height above the water surface, and the thalweg depth. The value is the mean bankfull width divided by the mean bankfull depth (bankfull height plus thalweg depth).", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 7.343138897418976, + "y": 0.7 + }, + { + "x": 13.018848657608032, + "y": 1.0 + }, + { + "x": 29.235162258148193, + "y": 1.0 + }, + { + "x": 34.91087201833725, + "y": 0.7 + }, + { + "x": 45.451475858688354, + "y": 0.3 + }, + { + "x": 61.667789459228516, + "y": 0.0 + } + ] + }, + "referenceN": 30, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference expectation likely varies with DrainageAreaClass (cross-validated improvement 26%, resample recurrence 85%); the curve is unstratified pending a larger reference pool, so sites at either end of that gradient may read as departures that are natural.", + "The reference stations for this curve were borrowed from Level II ecoregion 7.1 (Marine West Coast Forest) because this ecoregion has too few least-disturbed stations of its own. 30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.67 of evaluation regions; two thirds required; net optimism +0.16, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 4.971553802490234, + 55.872154235839844 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "7.1", + "regionName": "Marine West Coast Forest", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 42, + "nComparable": 30, + "nUsable": 30, + "nLocal": 1, + "nHuc12": 27, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.875, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6667, + "net_opt": 0.16, + "n_cells": 18, + "c1_share": 0.2222 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 8.301772356033325, + "q50": 27.772171020507812, + "q75": 33.69500398635864 + }, + "discrimination": { + "aucRefVsPressure": 0.556, + "nRef": 30, + "nPressure": 31, + "medianRefIndex": 0.978, + "medianPressureIndex": 0.87, + "aucRvsIm": null, + "nR": 3, + "nIm": 7, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6667, + "net_opt": 0.16, + "n_cells": 18, + "c1_share": 0.2222 + }, + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydraulics", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-rp100-cm", + "metricName": "Residual pool depth", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Residual pool depth (cm)", + "howToMeasure": "Residual pool depth per 100 m; deeper residual pools generally better habitat.", + "methodContext": "Measure the thalweg depth at 10 or 15 evenly spaced stations between each pair of transects (100 or 150 along the reach). The value is the mean residual pool depth in centimeters, computed from that depth profile and the reach slope with the NRSA physical habitat calculations.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 8.164216927119664, + "y": 0.3 + }, + { + "x": 19.04983949661255, + "y": 0.7 + }, + { + "x": 38.902586936950684, + "y": 1.0 + }, + { + "x": 48.82896065711975, + "y": 1.0 + } + ] + }, + "referenceN": 30, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference expectation likely varies with ChannelSlopeClass (cross-validated improvement 25%, resample recurrence 87%); the curve is unstratified pending a larger reference pool, so sites at either end of that gradient may read as departures that are natural.", + "The reference stations for this curve were borrowed from Level II ecoregion 7.1 (Marine West Coast Forest) because this ecoregion has too few least-disturbed stations of its own. 30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 1.1884844303131104, + 84.34017181396484 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "7.1", + "regionName": "Marine West Coast Forest", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 42, + "nComparable": 30, + "nUsable": 30, + "nLocal": 1, + "nHuc12": 27, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.875, + "supportedLevel": "l3", + "transferRisk": "moderate", + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 72.91022872924805, + "q50": 76.92487335205078, + "q75": 95.26705932617188 + }, + "discrimination": { + "aucRefVsPressure": 0.49, + "nRef": 30, + "nPressure": 31, + "medianRefIndex": 0.751, + "medianPressureIndex": 0.898, + "aucRvsIm": null, + "nR": 3, + "nIm": 7, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Hydraulics", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "high-flow-dynamics", + "functionName": "High flow dynamics", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-pctimp2019ws", + "metricName": "Impervious surface", + "inputType": "proportion", + "sourceCitation": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "xLabel": "Impervious surface (%)", + "howToMeasure": "Impervious surface (%) is scored on the same fixed criteria EASI uses in every region. Good <10%, Fair 10-25%, Poor >25%.", + "methodContext": "Percent of the watershed in impervious surface. DEEP computes it for the delineated watershed. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 10.0, + "y": 0.69 + }, + { + "x": 25.005, + "y": 0.39 + }, + { + "x": 44.5115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Catchment hydrology (land-cover pressure)", + "easiMethod": "catchment-land-cover-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<10%" + }, + { + "rating": "Fair", + "label": "10-25%" + }, + { + "rating": "Poor", + "label": ">25%" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "schueler-1994", + "text": "Schueler 1994, The importance of imperviousness" + }, + { + "key": "allan-2004", + "text": "Allan 2004, Landscapes and riverscapes: the influence of land use on stream ecosystems" + }, + { + "key": "wang-1997", + "text": "Wang et al. 1997, Influences of watershed land use on habitat quality and biotic integrity in Wisconsin streams" + }, + { + "key": "king-2011", + "text": "King et al. 2011, Stream community thresholds at exceptionally low levels of catchment urbanization" + } + ], + "limitations": [ + "The worse input governs because hydrologic alteration through one pathway is not offset by low pressure in the other.", + "Agricultural bands are national screening tiers, not ecological criteria.", + "A result computed from one input is labeled partial.", + "Sensitive macroinvertebrate taxa decline well below the 10 percent impervious Good boundary (community thresholds near 0.5 to 2 percent), so a Good rating is not a no-effect finding (King et al. 2011)." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydraulics", + "assignmentOrigin": "additional-function" + } + ] + }, + { + "functionId": "floodplain-connectivity", + "functionName": "Floodplain connectivity", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-phab-bfwd-rat", + "metricName": "Bankfull width:depth ratio", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull width:depth ratio", + "howToMeasure": "Bankfull width-to-depth ratio; both over-widened (very high) and incised (very low) degrade condition. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the bankfull width and the bankfull height above the water surface, and the thalweg depth. The value is the mean bankfull width divided by the mean bankfull depth (bankfull height plus thalweg depth).", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 7.343138897418976, + "y": 0.7 + }, + { + "x": 13.018848657608032, + "y": 1.0 + }, + { + "x": 29.235162258148193, + "y": 1.0 + }, + { + "x": 34.91087201833725, + "y": 0.7 + }, + { + "x": 45.451475858688354, + "y": 0.3 + }, + { + "x": 61.667789459228516, + "y": 0.0 + } + ] + }, + "referenceN": 30, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference expectation likely varies with DrainageAreaClass (cross-validated improvement 26%, resample recurrence 85%); the curve is unstratified pending a larger reference pool, so sites at either end of that gradient may read as departures that are natural.", + "The reference stations for this curve were borrowed from Level II ecoregion 7.1 (Marine West Coast Forest) because this ecoregion has too few least-disturbed stations of its own. 30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.67 of evaluation regions; two thirds required; net optimism +0.16, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 4.971553802490234, + 55.872154235839844 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "7.1", + "regionName": "Marine West Coast Forest", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 42, + "nComparable": 30, + "nUsable": 30, + "nLocal": 1, + "nHuc12": 27, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.875, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6667, + "net_opt": 0.16, + "n_cells": 18, + "c1_share": 0.2222 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 8.301772356033325, + "q50": 27.772171020507812, + "q75": 33.69500398635864 + }, + "discrimination": { + "aucRefVsPressure": 0.556, + "nRef": 30, + "nPressure": 31, + "medianRefIndex": 0.978, + "medianPressureIndex": 0.87, + "aucRvsIm": null, + "nR": 3, + "nIm": 7, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6667, + "net_opt": 0.16, + "n_cells": 18, + "c1_share": 0.2222 + }, + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydraulics", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xbkf-h", + "metricName": "Bankfull height above channel", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull height above channel (m)", + "howToMeasure": "Mean bankfull height; both incision (very high banks) and over-widening (very low) depart from reference. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the height of the bankfull elevation above the present water surface in meters, with a rod at the water's edge and a clinometer held level at bankfull. The value is the mean of the 11 heights.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.27718182206153874, + "y": 0.7 + }, + { + "x": 0.4954545497894287, + "y": 1.0 + }, + { + "x": 1.1190909147262573, + "y": 1.0 + }, + { + "x": 1.3373636424541473, + "y": 0.7 + }, + { + "x": 1.742727279663086, + "y": 0.3 + }, + { + "x": 2.3663636445999146, + "y": 0.0 + } + ] + }, + "referenceN": 30, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 7.1 (Marine West Coast Forest) because this ecoregion has too few least-disturbed stations of its own. 30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.04, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.56 of evaluation regions; two thirds required); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.290909081697464, + 1.4800000190734863 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "7.1", + "regionName": "Marine West Coast Forest", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 42, + "nComparable": 30, + "nUsable": 30, + "nLocal": 1, + "nHuc12": 27, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.875, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.04, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.0354, + "n_cells": 18, + "c1_share": 0.3889 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 0.5313636362552643, + "q50": 0.703181803226471, + "q75": 0.8977272808551788 + }, + "discrimination": { + "aucRefVsPressure": 0.475, + "nRef": 30, + "nPressure": 31, + "medianRefIndex": 0.969, + "medianPressureIndex": 1.0, + "aucRvsIm": null, + "nR": 3, + "nIm": 7, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.0354, + "n_cells": 18, + "c1_share": 0.3889 + }, + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.04, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydraulics", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "hyporheic-connectivity", + "functionName": "Hyporheic connectivity", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-phab-pct-safn", + "metricName": "Sand + fines", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Sand + fines (%)", + "howToMeasure": "Percent sand and fines; higher indicates fine-sediment loading (worse).", + "methodContext": "Record the size class of the particle at five evenly spaced points across each of the 11 transects and the 10 cross-sections midway between them (105 particles). The value is the percent of particles that are sand or finer.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 1.0294117778539658, + "y": 1.0 + }, + { + "x": 15.333333253860474, + "y": 0.7 + }, + { + "x": 36.789215467870235, + "y": 0.3 + }, + { + "x": 51.09313694387674, + "y": 0.0 + } + ] + }, + "referenceN": 30, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 7.1 (Marine West Coast Forest) because this ecoregion has too few least-disturbed stations of its own. 30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 0.0, + 100.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "7.1", + "regionName": "Marine West Coast Forest", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 42, + "nComparable": 30, + "nUsable": 30, + "nLocal": 1, + "nHuc12": 27, + "disposition": "adequate", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.875, + "supportedLevel": "l2", + "transferRisk": "low", + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 1.5, + "q50": 8.165266275405884, + "q75": 30.95662498474121 + }, + "discrimination": { + "aucRefVsPressure": 0.612, + "nRef": 30, + "nPressure": 31, + "medianRefIndex": 0.853, + "medianPressureIndex": 0.816, + "aucRvsIm": null, + "nR": 3, + "nIm": 7, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Hydraulics", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xembed", + "metricName": "Embeddedness", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Embeddedness (%)", + "howToMeasure": "Percent embeddedness; higher means interstitial spaces filled with fines (worse).", + "methodContext": "At five evenly spaced points across each of the 11 transects, estimate how much of the particle under the point is buried in sand and finer sediment, in percent. Record the 55 estimates. The value is their mean.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 12.580201864242554, + "y": 1.0 + }, + { + "x": 22.932255268096924, + "y": 1.0 + }, + { + "x": 43.636362075805664, + "y": 0.7 + }, + { + "x": 74.69252228736877, + "y": 0.3 + }, + { + "x": 95.39662909507751, + "y": 0.0 + } + ] + }, + "referenceN": 18, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 18 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error.", + "The reference stations for this curve were borrowed from Level II ecoregion 7.1 (Marine West Coast Forest) because this ecoregion has too few least-disturbed stations of its own. 18 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 7.636363506317139, + 86.36363983154297 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "7.1", + "regionName": "Marine West Coast Forest", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 42, + "nComparable": 30, + "nUsable": 18, + "nLocal": 1, + "nHuc12": 17, + "disposition": "exploratory", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.875, + "supportedLevel": "l2", + "transferRisk": "low", + "transferNote": "18 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "discrimination": { + "aucRefVsPressure": 0.557, + "nRef": 18, + "nPressure": 18, + "medianRefIndex": 0.931, + "medianPressureIndex": 0.909, + "aucRvsIm": null, + "nR": 2, + "nIm": 3, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Hydraulics", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "channel-evolution", + "functionName": "Channel evolution", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-bfwd-rat", + "metricName": "Bankfull width:depth ratio", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull width:depth ratio", + "howToMeasure": "Bankfull width-to-depth ratio; both over-widened (very high) and incised (very low) degrade condition. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the bankfull width and the bankfull height above the water surface, and the thalweg depth. The value is the mean bankfull width divided by the mean bankfull depth (bankfull height plus thalweg depth).", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 7.343138897418976, + "y": 0.7 + }, + { + "x": 13.018848657608032, + "y": 1.0 + }, + { + "x": 29.235162258148193, + "y": 1.0 + }, + { + "x": 34.91087201833725, + "y": 0.7 + }, + { + "x": 45.451475858688354, + "y": 0.3 + }, + { + "x": 61.667789459228516, + "y": 0.0 + } + ] + }, + "referenceN": 30, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference expectation likely varies with DrainageAreaClass (cross-validated improvement 26%, resample recurrence 85%); the curve is unstratified pending a larger reference pool, so sites at either end of that gradient may read as departures that are natural.", + "The reference stations for this curve were borrowed from Level II ecoregion 7.1 (Marine West Coast Forest) because this ecoregion has too few least-disturbed stations of its own. 30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.67 of evaluation regions; two thirds required; net optimism +0.16, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 4.971553802490234, + 55.872154235839844 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "7.1", + "regionName": "Marine West Coast Forest", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 42, + "nComparable": 30, + "nUsable": 30, + "nLocal": 1, + "nHuc12": 27, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.875, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6667, + "net_opt": 0.16, + "n_cells": 18, + "c1_share": 0.2222 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 8.301772356033325, + "q50": 27.772171020507812, + "q75": 33.69500398635864 + }, + "discrimination": { + "aucRefVsPressure": 0.556, + "nRef": 30, + "nPressure": 31, + "medianRefIndex": 0.978, + "medianPressureIndex": 0.87, + "aucRvsIm": null, + "nR": 3, + "nIm": 7, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6667, + "net_opt": 0.16, + "n_cells": 18, + "c1_share": 0.2222 + }, + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.67 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xbkf-h", + "metricName": "Bankfull height above channel", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull height above channel (m)", + "howToMeasure": "Mean bankfull height; both incision (very high banks) and over-widening (very low) depart from reference. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the height of the bankfull elevation above the present water surface in meters, with a rod at the water's edge and a clinometer held level at bankfull. The value is the mean of the 11 heights.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.27718182206153874, + "y": 0.7 + }, + { + "x": 0.4954545497894287, + "y": 1.0 + }, + { + "x": 1.1190909147262573, + "y": 1.0 + }, + { + "x": 1.3373636424541473, + "y": 0.7 + }, + { + "x": 1.742727279663086, + "y": 0.3 + }, + { + "x": 2.3663636445999146, + "y": 0.0 + } + ] + }, + "referenceN": 30, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 7.1 (Marine West Coast Forest) because this ecoregion has too few least-disturbed stations of its own. 30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.04, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.56 of evaluation regions; two thirds required); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.290909081697464, + 1.4800000190734863 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "7.1", + "regionName": "Marine West Coast Forest", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 42, + "nComparable": 30, + "nUsable": 30, + "nLocal": 1, + "nHuc12": 27, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.875, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.04, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.0354, + "n_cells": 18, + "c1_share": 0.3889 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 0.5313636362552643, + "q50": 0.703181803226471, + "q75": 0.8977272808551788 + }, + "discrimination": { + "aucRefVsPressure": 0.475, + "nRef": 30, + "nPressure": 31, + "medianRefIndex": 0.969, + "medianPressureIndex": 1.0, + "aucRvsIm": null, + "nR": 3, + "nIm": 7, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.0354, + "n_cells": 18, + "c1_share": 0.3889 + }, + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.04, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Geomorphology", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "channel-floodplain-dynamics", + "functionName": "Channel and floodplain dynamics", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-sinu", + "metricName": "Sinuosity", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Sinuosity", + "howToMeasure": "Channel sinuosity; higher generally indicates a more natural planform.", + "methodContext": "Take a compass bearing (backsight) and the distance between each pair of neighboring transects. The value is the channel length along those segments divided by the straight line distance between the ends of the reach.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 1.0, + "y": 0.0 + }, + { + "x": 1.0835046172142029, + "y": 0.7 + }, + { + "x": 1.3225198984146118, + "y": 1.0 + }, + { + "x": 1.4420275390148163, + "y": 1.0 + } + ] + }, + "referenceN": 171, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from NARS-9 region ecoregion WMT because this ecoregion has too few least-disturbed stations of its own. 171 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is high and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 1.0068236589431763, + 13.288087844848633 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "WMT", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 375, + "nComparable": 224, + "nUsable": 171, + "nLocal": 1, + "nHuc12": 163, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.875, + "supportedLevel": "l3", + "transferRisk": "high", + "transferNote": "171 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is high and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "discrimination": { + "aucRefVsPressure": 0.501, + "nRef": 171, + "nPressure": 89, + "medianRefIndex": 0.8, + "medianPressureIndex": 0.806, + "aucRvsIm": 0.461, + "nR": 34, + "nIm": 41, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xbka", + "metricName": "Bank angle", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bank angle (degrees)", + "howToMeasure": "Mean bank angle; very steep banks indicate incision and very flat banks an over-widened, aggrading channel, so departure from the reference core in either direction departs from reference. Direction resolved at the Northeastern Highlands review gate (owner decision, 2026-08-21), consistent with the width-to-depth and bankfull-height treatment. low_tail flat added at the adversarial review gate (owner decision, 2026-08-21): a regraded or naturally gentle bank holds at the Functioning edge instead of being penalized, because the flat tail is not symmetric evidence of degradation and the framework's stated use is restoration evaluation.", + "methodContext": "At the left and the right bank of each transect, lay a pole about one meter long against the bank and read its angle from horizontal with a clinometer, in degrees. The value is the mean of the 22 readings.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 3.244314193725586, + "y": 0.7 + }, + { + "x": 19.67869191169739, + "y": 0.7 + }, + { + "x": 23.164772033691406, + "y": 1.0 + }, + { + "x": 33.125000953674316, + "y": 1.0 + }, + { + "x": 36.61108107566834, + "y": 0.7 + }, + { + "x": 43.08522987365723, + "y": 0.3 + }, + { + "x": 53.04545879364014, + "y": 0.0 + } + ] + }, + "referenceN": 18, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 18 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error.", + "The reference stations for this curve were borrowed from Level II ecoregion 7.1 (Marine West Coast Forest) because this ecoregion has too few least-disturbed stations of its own. 18 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 19.409090042114258, + 67.04545593261719 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "7.1", + "regionName": "Marine West Coast Forest", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 42, + "nComparable": 30, + "nUsable": 18, + "nLocal": 1, + "nHuc12": 17, + "disposition": "exploratory", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.875, + "supportedLevel": "l2", + "transferRisk": "low", + "transferNote": "18 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "discrimination": { + "aucRefVsPressure": 0.656, + "nRef": 18, + "nPressure": 18, + "medianRefIndex": 0.995, + "medianPressureIndex": 0.7, + "aucRvsIm": null, + "nR": 2, + "nIm": 3, + "verdict": "discriminates" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "sediment-continuity", + "functionName": "Sediment continuity", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-lrbs-use", + "metricName": "Relative bed stability", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Relative bed stability (log)", + "howToMeasure": "Log relative bed stability; departure from the reference core in EITHER direction departs from reference (negative excess fines, positive an armored, sediment-starved bed, the classic below-impoundment failure). The pilot's rising direction scored armored beds 1.0 and left Sediment continuity blind to its textbook failure mode. Two-sided form is an owner decision at the adversarial review gate, 2026-08-21.", + "methodContext": "Computed, not read in the field. It is the base 10 logarithm of the ratio of the geometric mean particle diameter to the largest diameter the bankfull flow can move, from the particle count, reach slope, bankfull depth, wood tally and residual pools, with the NRSA physical habitat calculations.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": -1.6933138146996498, + "y": 0.0 + }, + { + "x": -1.0909460596740246, + "y": 0.3 + }, + { + "x": -0.6994070189073682, + "y": 0.7 + }, + { + "x": -0.48857830464839935, + "y": 1.0 + }, + { + "x": 0.11378945037722588, + "y": 1.0 + }, + { + "x": 0.3246181646361947, + "y": 0.7 + }, + { + "x": 0.7161572054028511, + "y": 0.3 + }, + { + "x": 1.3185249604284763, + "y": 0.0 + } + ] + }, + "referenceN": 30, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level I ecoregion 7 (Marine West Coast Forest) because this ecoregion has too few least-disturbed stations of its own. 30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level I 7 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is high and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + -2.2247369289398193, + 1.8117198944091797 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l1", + "level": "l1", + "levelLabel": "Level I", + "regionCode": "7", + "regionName": "Marine West Coast Forest", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 42, + "nComparable": 30, + "nUsable": 30, + "nLocal": 1, + "nHuc12": 27, + "disposition": "adequate", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.875, + "supportedLevel": "l3", + "transferRisk": "high", + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level I 7 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is high and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": -0.7090406268835068, + "q50": 0.1426306813955307, + "q75": 0.3538753464818001 + }, + "discrimination": { + "aucRefVsPressure": 0.62, + "nRef": 30, + "nPressure": 31, + "medianRefIndex": 0.994, + "medianPressureIndex": 0.675, + "aucRvsIm": null, + "nR": 3, + "nIm": 7, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-pct-safn", + "metricName": "Sand + fines", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Sand + fines (%)", + "howToMeasure": "Percent sand and fines; higher indicates fine-sediment loading (worse).", + "methodContext": "Record the size class of the particle at five evenly spaced points across each of the 11 transects and the 10 cross-sections midway between them (105 particles). The value is the percent of particles that are sand or finer.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 1.0294117778539658, + "y": 1.0 + }, + { + "x": 15.333333253860474, + "y": 0.7 + }, + { + "x": 36.789215467870235, + "y": 0.3 + }, + { + "x": 51.09313694387674, + "y": 0.0 + } + ] + }, + "referenceN": 30, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 7.1 (Marine West Coast Forest) because this ecoregion has too few least-disturbed stations of its own. 30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 0.0, + 100.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "7.1", + "regionName": "Marine West Coast Forest", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 42, + "nComparable": 30, + "nUsable": 30, + "nLocal": 1, + "nHuc12": 27, + "disposition": "adequate", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.875, + "supportedLevel": "l2", + "transferRisk": "low", + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 1.5, + "q50": 8.165266275405884, + "q75": 30.95662498474121 + }, + "discrimination": { + "aucRefVsPressure": 0.612, + "nRef": 30, + "nPressure": 31, + "medianRefIndex": 0.853, + "medianPressureIndex": 0.816, + "aucRvsIm": null, + "nR": 3, + "nIm": 7, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "bed-composition-bedform-dynamics", + "functionName": "Bed composition and bedform dynamics", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-xembed", + "metricName": "Embeddedness", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Embeddedness (%)", + "howToMeasure": "Percent embeddedness; higher means interstitial spaces filled with fines (worse).", + "methodContext": "At five evenly spaced points across each of the 11 transects, estimate how much of the particle under the point is buried in sand and finer sediment, in percent. Record the 55 estimates. The value is their mean.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 12.580201864242554, + "y": 1.0 + }, + { + "x": 22.932255268096924, + "y": 1.0 + }, + { + "x": 43.636362075805664, + "y": 0.7 + }, + { + "x": 74.69252228736877, + "y": 0.3 + }, + { + "x": 95.39662909507751, + "y": 0.0 + } + ] + }, + "referenceN": 18, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 18 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error.", + "The reference stations for this curve were borrowed from Level II ecoregion 7.1 (Marine West Coast Forest) because this ecoregion has too few least-disturbed stations of its own. 18 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 7.636363506317139, + 86.36363983154297 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "7.1", + "regionName": "Marine West Coast Forest", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 42, + "nComparable": 30, + "nUsable": 18, + "nLocal": 1, + "nHuc12": 17, + "disposition": "exploratory", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.875, + "supportedLevel": "l2", + "transferRisk": "low", + "transferNote": "18 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "discrimination": { + "aucRefVsPressure": 0.557, + "nRef": 18, + "nPressure": 18, + "medianRefIndex": 0.931, + "medianPressureIndex": 0.909, + "aucRvsIm": null, + "nR": 2, + "nIm": 3, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-lwdeqvolm100", + "metricName": "Large wood volume", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Large wood volume (m3/100m)", + "howToMeasure": "Large woody debris volume per 100 m; higher is better.", + "methodContext": "Between each pair of transects, tally every piece of wood at least 10 cm in diameter and 1.5 m long in or above the bankfull channel, by length and diameter class. The value is the wood volume per 100 m of channel, computed from the tally classes.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.4494967588356563, + "y": 0.3 + }, + { + "x": 1.0488257706165314, + "y": 0.7 + }, + { + "x": 13.753354549407959, + "y": 1.0 + }, + { + "x": 20.105618938803673, + "y": 1.0 + } + ] + }, + "referenceN": 103, + "curveCaveats": [ + "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + ], + "confidenceLabel": "Low", + "confidenceTotal": 53.5, + "criteriaBasis": "reference", + "referenceSupport": { + "status": "national", + "level": null, + "levelLabel": "", + "regionCode": "national", + "regionName": "National least-disturbed pool", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 769, + "nComparable": 103, + "nUsable": 103, + "nLocal": 0, + "nHuc12": 102, + "disposition": "adequate", + "family": "riparian", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "moderate", + "transferNote": "103 least-disturbed stations from the national pool whose natural setting falls inside this ecoregion's comparability envelope, none inside this ecoregion.", + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 5, + "q25": 1.8173333406448364, + "q50": 10.725454330444336, + "q75": 11.802727699279785 + }, + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it.", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "light-thermal-regime", + "functionName": "Light & thermal regime", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-chem-chla", + "metricName": "Chlorophyll a", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Chlorophyll a (ug/L)", + "howToMeasure": "Chlorophyll a; higher indicates algal enrichment/eutrophication (worse).", + "methodContext": "Chlorophyll a of the water column in micrograms per liter, from a 2 L grab sample taken at mid-channel at the X-site in an amber bottle, filtered and analyzed in a laboratory.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 0.25, + "y": 1.0 + }, + { + "x": 0.8095000088214874, + "y": 0.7 + }, + { + "x": 1.6487500220537186, + "y": 0.3 + }, + { + "x": 2.208250030875206, + "y": 0.0 + } + ] + }, + "referenceN": 75, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from NARS-9 region ecoregion WMT because this ecoregion has too few least-disturbed stations of its own. 75 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.42 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.20, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.42 of evaluation regions; two thirds required; net optimism +0.20, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.009999999776482582, + 4.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "WMT", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 375, + "nComparable": 76, + "nUsable": 75, + "nLocal": 1, + "nHuc12": 68, + "disposition": "adequate", + "family": "water_chemistry", + "covariates": [ + "bfiws", + "runoffws", + "lith_group" + ], + "selfCoverage": 0.875, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "75 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.42 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.20, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.4211, + "net_opt": 0.2, + "n_cells": 19, + "c1_share": 0.2632 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 0.7687499970197678, + "q50": 1.5889999270439148, + "q75": 2.347499966621399 + }, + "discrimination": { + "aucRefVsPressure": 0.759, + "nRef": 75, + "nPressure": 131, + "medianRefIndex": 0.9, + "medianPressureIndex": 0.504, + "aucRvsIm": 0.606, + "nR": 39, + "nIm": 54, + "verdict": "discriminates" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.4211, + "net_opt": 0.2, + "n_cells": 19, + "c1_share": 0.2632 + }, + "transferNote": "75 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.42 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.20, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xcdenmid", + "metricName": "Canopy density, mid-channel", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Canopy density, mid-channel (%)", + "howToMeasure": "Mid-channel canopy density; higher shading generally better for thermal/light regime.", + "methodContext": "At mid-channel on each transect, read a convex spherical densiometer facing upstream, downstream, left and right, counting the covered points of 17. The value is the mean of the 44 readings as a percent.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 19.33727972848075, + "y": 0.3 + }, + { + "x": 45.12031936645508, + "y": 0.7 + }, + { + "x": 83.82353210449219, + "y": 1.0 + }, + { + "x": 100.0, + "y": 1.0 + } + ] + }, + "referenceN": 63, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from NARS-9 region ecoregion WMT because this ecoregion has too few least-disturbed stations of its own. 63 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.58 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.58 of evaluation regions; two thirds required; net optimism +0.16, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 3.7433154582977295, + 100.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "WMT", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 375, + "nComparable": 84, + "nUsable": 63, + "nLocal": 1, + "nHuc12": 61, + "disposition": "adequate", + "family": "riparian", + "covariates": [ + "drainage_area_sqkm", + "precip8110ws" + ], + "selfCoverage": 0.75, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "63 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.58 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5789, + "net_opt": 0.1613, + "n_cells": 19, + "c1_share": 0.3684 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "discrimination": { + "aucRefVsPressure": 0.558, + "nRef": 63, + "nPressure": 89, + "medianRefIndex": 0.861, + "medianPressureIndex": 0.805, + "aucRvsIm": 0.724, + "nR": 34, + "nIm": 41, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5789, + "net_opt": 0.1613, + "n_cells": 19, + "c1_share": 0.3684 + }, + "transferNote": "63 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.58 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.16, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "carbon-processing", + "functionName": "Carbon processing", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-phab-xcmgw", + "metricName": "Riparian veg cover, woody", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Riparian veg cover, woody (frac)", + "howToMeasure": "Riparian canopy plus mid-layer plus ground cover; higher is better.", + "methodContext": "In a 10 m by 10 m plot on each bank at each transect, estimate the areal cover class of woody vegetation in the canopy, the understory and the ground layer. The value is the summed woody cover of the three layers, averaged over the 22 plots, as a fraction.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.3652394541672298, + "y": 0.3 + }, + { + "x": 0.8522253930568695, + "y": 0.7 + }, + { + "x": 1.3437500298023224, + "y": 1.0 + }, + { + "x": 1.5895123481750488, + "y": 1.0 + } + ] + }, + "referenceN": 84, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from NARS-9 region ecoregion WMT because this ecoregion has too few least-disturbed stations of its own. 84 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.06, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.63 of evaluation regions; two thirds required; net optimism +0.06, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.3022727370262146, + 2.044318199157715 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "WMT", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 375, + "nComparable": 84, + "nUsable": 84, + "nLocal": 1, + "nHuc12": 81, + "disposition": "adequate", + "family": "riparian", + "covariates": [ + "drainage_area_sqkm", + "precip8110ws" + ], + "selfCoverage": 0.75, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "84 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.06, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6316, + "net_opt": 0.0571, + "n_cells": 19, + "c1_share": 0.5263 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 0.9755681902170181, + "q50": 1.331818163394928, + "q75": 1.5525973737239838 + }, + "discrimination": { + "aucRefVsPressure": 0.684, + "nRef": 84, + "nPressure": 130, + "medianRefIndex": 0.841, + "medianPressureIndex": 0.699, + "aucRvsIm": 0.663, + "nR": 40, + "nIm": 54, + "verdict": "discriminates" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6316, + "net_opt": 0.0571, + "n_cells": 19, + "c1_share": 0.5263 + }, + "transferNote": "84 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.63 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.06, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "nutrient-cycling", + "functionName": "Nutrient cycling", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-chem-ntl", + "metricName": "Total nitrogen", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2018-19 regional total nitrogen thresholds, NARS-9 region WMT", + "xLabel": "Total nitrogen (mg N/L)", + "howToMeasure": "Total nitrogen; higher indicates nutrient enrichment (worse). The total fraction, reported in every NRSA cycle, and the fraction published nitrogen criteria are written against.", + "methodContext": "Total nitrogen in milligrams of nitrogen per liter, laboratory analysis of the unfiltered mid-channel grab sample from the X-site, kept on ice.", + "curve": { + "layerName": "USEPA NRSA 2018-19 regional total nitrogen thresholds, NARS-9 region WMT", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 0.1395, + "y": 0.69 + }, + { + "x": 0.249, + "y": 0.39 + }, + { + "x": 0.39135, + "y": 0.0 + } + ] + }, + "curveCaveats": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ], + "confidenceLabel": "Published benchmark", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "NRSA 2018-19 regional total nitrogen thresholds, NARS-9 region WMT", + "easiMethod": "regional-nutrient-condition", + "region": "WMT", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "≤0.139 mg N/L" + }, + { + "rating": "Fair", + "label": ">0.139 to <0.249 mg N/L" + }, + { + "rating": "Poor", + "label": "≥0.249 mg N/L" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "nars-regions", + "text": "Ecoregions Used in the National Aquatic Resource Surveys" + } + ], + "limitations": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ] + }, + "referenceSupport": { + "status": "published", + "level": null, + "levelLabel": "", + "regionCode": "3", + "regionName": "Willamette Valley", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 0, + "nComparable": 0, + "nUsable": 0, + "nLocal": 0, + "nHuc12": 0, + "disposition": "exploratory", + "family": "water_chemistry", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Scored against a published criterion for NARS-9 region WMT rather than against stations of this ecoregion. Its breakpoints are 0.139 and 0.249 mg N/L. The criterion carries its own definition of reference, which need not match this assessment's.", + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 0.08400000259280205, + "q50": 0.11949999630451202, + "q75": 0.27250000834465027 + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "publishedBenchmark": { + "benchmark": "Nutrient condition", + "methodKey": "regional-nutrient-condition", + "analyte": "total nitrogen", + "fraction": "total", + "citations": [ + "nrsa-2018-19", + "nars-regions", + "wqp" + ], + "sourceTier": "connected-nearby", + "confidence": "M/L", + "provisional": false, + "limitations": [ + "Nearby monitoring stations are not necessarily reach-specific.", + "Each station is reduced to a median before station medians are combined, preventing heavily sampled stations from dominating.", + "One analyte may produce a partial rating.", + "When observations are unavailable, the CHEM fallback represents landscape integrity rather than measured nutrient concentration." + ], + "unitConversion": "mg/L to mg N/L x1.0", + "region": "WMT" + }, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical" + }, + { + "metricId": "spring-chem-ptl", + "metricName": "Total phosphorus", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2018-19 regional total phosphorus thresholds, NARS-9 region WMT", + "xLabel": "Total phosphorus (ug/L)", + "howToMeasure": "Total phosphorus; higher indicates nutrient enrichment (worse).", + "methodContext": "Total phosphorus in micrograms per liter, laboratory analysis of the mid-channel grab sample from the X-site, kept on ice.", + "curve": { + "layerName": "USEPA NRSA 2018-19 regional total phosphorus thresholds, NARS-9 region WMT", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 17.75, + "y": 0.69 + }, + { + "x": 41.0, + "y": 0.39 + }, + { + "x": 71.225, + "y": 0.0 + } + ] + }, + "curveCaveats": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ], + "confidenceLabel": "Published benchmark", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "NRSA 2018-19 regional total phosphorus thresholds, NARS-9 region WMT", + "easiMethod": "regional-nutrient-condition", + "region": "WMT", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "≤17.7 ug/L" + }, + { + "rating": "Fair", + "label": ">17.7 to <41 ug/L" + }, + { + "rating": "Poor", + "label": "≥41 ug/L" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "nars-regions", + "text": "Ecoregions Used in the National Aquatic Resource Surveys" + } + ], + "limitations": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ] + }, + "referenceSupport": { + "status": "published", + "level": null, + "levelLabel": "", + "regionCode": "3", + "regionName": "Willamette Valley", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 0, + "nComparable": 0, + "nUsable": 0, + "nLocal": 0, + "nHuc12": 0, + "disposition": "exploratory", + "family": "water_chemistry", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Scored against a published criterion for NARS-9 region WMT rather than against stations of this ecoregion. Its breakpoints are 17.7 and 41 ug/L. The criterion carries its own definition of reference, which need not match this assessment's.", + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 20.66599988937378, + "q50": 45.04999923706055, + "q75": 70.68575096130371 + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "publishedBenchmark": { + "benchmark": "Nutrient condition", + "methodKey": "regional-nutrient-condition", + "analyte": "total phosphorus", + "fraction": "total", + "citations": [ + "nrsa-2018-19", + "nars-regions", + "wqp" + ], + "sourceTier": "connected-nearby", + "confidence": "M/L", + "provisional": false, + "limitations": [ + "Nearby monitoring stations are not necessarily reach-specific.", + "Each station is reduced to a median before station medians are combined, preventing heavily sampled stations from dominating.", + "One analyte may produce a partial rating.", + "When observations are unavailable, the CHEM fallback represents landscape integrity rather than measured nutrient concentration." + ], + "unitConversion": "mg/L to ug/L x1000.0", + "region": "WMT" + }, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "water-soil-quality", + "functionName": "Water & soil quality", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-chem-turb", + "metricName": "Turbidity", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Turbidity (NTU)", + "howToMeasure": "Turbidity; higher indicates more suspended sediment (worse).", + "methodContext": "Turbidity in nephelometric turbidity units, laboratory analysis of the mid-channel grab sample from the X-site. Sample before anyone walks the channel upstream.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 0.24499999731779099, + "y": 1.0 + }, + { + "x": 1.399999976158142, + "y": 0.7 + }, + { + "x": 3.1324999444186687, + "y": 0.3 + }, + { + "x": 4.28749992325902, + "y": 0.0 + } + ] + }, + "referenceN": 71, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from NARS-9 region ecoregion WMT because this ecoregion has too few least-disturbed stations of its own. 71 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.58 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.03, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.58 of evaluation regions; two thirds required); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.009999999776482582, + 147.63999938964844 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "WMT", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 375, + "nComparable": 76, + "nUsable": 71, + "nLocal": 1, + "nHuc12": 64, + "disposition": "adequate", + "family": "water_chemistry", + "covariates": [ + "bfiws", + "runoffws", + "lith_group" + ], + "selfCoverage": 0.875, + "supportedLevel": "l2", + "transferRisk": "unvalidated", + "transferNote": "71 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.58 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.03, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5789, + "net_opt": 0.0312, + "n_cells": 19, + "c1_share": 0.3158 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 0.2825000025331974, + "q50": 1.8299999237060547, + "q75": 3.9125000834465027 + }, + "discrimination": { + "aucRefVsPressure": 0.676, + "nRef": 71, + "nPressure": 128, + "medianRefIndex": 0.951, + "medianPressureIndex": 0.752, + "aucRvsIm": 0.83, + "nR": 40, + "nIm": 54, + "verdict": "discriminates" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5789, + "net_opt": 0.0312, + "n_cells": 19, + "c1_share": 0.3158 + }, + "transferNote": "71 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.58 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.03, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-chem-cond", + "metricName": "Specific conductivity", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2018-19 specific conductance benchmarks, NARS-9 region WMT", + "xLabel": "Specific conductivity (uS/cm)", + "howToMeasure": "Specific conductance; higher indicates ionic disturbance (worse).", + "methodContext": "Specific conductance in microsiemens per centimeter. NRSA reports the laboratory value of a grab sample taken at mid-channel at the X-site (the center of the reach). A calibrated multi-parameter meter reads the same quantity in the stream at that point.", + "curve": { + "layerName": "USEPA NRSA 2018-19 specific conductance benchmarks, NARS-9 region WMT", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 500.05, + "y": 0.69 + }, + { + "x": 1000.05, + "y": 0.39 + }, + { + "x": 1650.05, + "y": 0.0 + } + ] + }, + "curveCaveats": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ], + "confidenceLabel": "Published benchmark", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "NRSA salinity condition benchmarks, specific conductance, NARS-9 region WMT", + "easiMethod": null, + "catalogEntry": "nrsa-2018-19-salinity-conductivity", + "region": "WMT", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "≤500 uS/cm" + }, + { + "rating": "Fair", + "label": ">500 to ≤1000 uS/cm" + }, + { + "rating": "Poor", + "label": ">1000 uS/cm" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "nars-regions", + "text": "Ecoregions Used in the National Aquatic Resource Surveys" + } + ], + "limitations": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "The benchmarks are fixed category boundaries chosen by EPA, 500 and 1000 microsiemens per centimetre in six regions and 1000 and 2000 in the Northern, Southern and Temperate Plains, not percentiles of a reference distribution, and they have not changed since the 2008-09 survey.", + "Specific conductance carries natural geology and climate as well as disturbance, so a naturally saline or calcareous stream reads Fair or Poor against these benchmarks without being degraded." + ] + }, + "referenceSupport": { + "status": "published", + "level": null, + "levelLabel": "", + "regionCode": "3", + "regionName": "Willamette Valley", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 0, + "nComparable": 0, + "nUsable": 0, + "nLocal": 0, + "nHuc12": 0, + "disposition": "exploratory", + "family": "water_chemistry", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Scored against a published criterion for NARS-9 region WMT rather than against stations of this ecoregion. Its breakpoints are 500 and 1000 uS/cm. The criterion carries its own definition of reference, which need not match this assessment's.", + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 50.57499980926514, + "q50": 58.79999923706055, + "q75": 115.07499885559082 + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "publishedBenchmark": { + "benchmark": "NRSA salinity condition benchmarks, specific conductance", + "methodKey": null, + "catalogEntry": "nrsa-2018-19-salinity-conductivity", + "analyte": "specific conductance", + "fraction": "total", + "citations": [ + "nrsa-2018-19", + "nars-regions" + ], + "sourceTier": "epa-national-survey-benchmark", + "confidence": "M", + "provisional": false, + "limitations": [ + "The benchmarks are fixed category boundaries chosen by EPA, 500 and 1000 microsiemens per centimetre in six regions and 1000 and 2000 in the Northern, Southern and Temperate Plains, not percentiles of a reference distribution, and they have not changed since the 2008-09 survey.", + "Specific conductance carries natural geology and climate as well as disturbance, so a naturally saline or calcareous stream reads Fair or Poor against these benchmarks without being degraded." + ], + "unitConversion": "uS/cm to uS/cm x1.0", + "thresholdsSource": { + "document": "National Rivers and Streams Assessment 2018-2019 Technical Support Document, Version 1.1, EPA 841-R-22-005 (November 2023, updated September 2024)", + "table": "Table 7-1. Nutrient and Salinity Category Benchmarks for NRSA Assessment (Salinity as Conductivity, Good-Fair and Fair-Poor)", + "page": 93, + "url": "https://www.epa.gov/system/files/documents/2024-12/nrsa-2018-19-tsd-final-11252024.pdf" + }, + "verification": { + "epaClassColumn": "SAL_COND", + "checkedOn": "2026-09-28", + "n": 3702, + "agree": 3702, + "share": 1.0 + }, + "region": "WMT" + }, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "habitat-provision", + "functionName": "Habitat provision", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-phab-pct-fast", + "metricName": "Fast-water / riffle habitat", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Fast-water / riffle habitat (%)", + "howToMeasure": "Percent fast-water (riffle/run) habitat; more generally better for many biota. Ecoregion-dependent.", + "methodContext": "At each thalweg station record the channel unit (falls, cascade, rapid, riffle, glide, pool, dry). The value is the percent of stations in fast water (falls, cascade, rapid or riffle).", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 9.0, + "y": 0.3 + }, + { + "x": 21.0, + "y": 0.7 + }, + { + "x": 50.86386203765869, + "y": 1.0 + }, + { + "x": 65.79579305648804, + "y": 1.0 + } + ] + }, + "referenceN": 30, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 7.1 (Marine West Coast Forest) because this ecoregion has too few least-disturbed stations of its own. 30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 0.0, + 84.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "7.1", + "regionName": "Marine West Coast Forest", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 42, + "nComparable": 30, + "nUsable": 30, + "nLocal": 1, + "nHuc12": 27, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.875, + "supportedLevel": "l2", + "transferRisk": "low", + "transferNote": "30 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 6.617646932601929, + "q50": 17.79787254333496, + "q75": 37.75 + }, + "discrimination": { + "aucRefVsPressure": 0.528, + "nRef": 30, + "nPressure": 31, + "medianRefIndex": 0.815, + "medianPressureIndex": 0.844, + "aucRvsIm": null, + "nR": 3, + "nIm": 7, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xfc-nat", + "metricName": "Natural fish cover", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Natural fish cover (frac)", + "howToMeasure": "Natural fish cover; higher is better.", + "methodContext": "In the 10 m of channel centered on each transect, estimate the areal cover class of each fish cover type on the form (wood, brush, overhanging vegetation, undercut banks, boulders and the rest). The value is the summed areal cover of the types that are not man-made, averaged over the transects.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.11235389113426208, + "y": 0.3 + }, + { + "x": 0.2621590793132782, + "y": 0.7 + }, + { + "x": 0.5784090757369995, + "y": 1.0 + }, + { + "x": 0.7365340739488602, + "y": 1.0 + } + ] + }, + "referenceN": 84, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from NARS-9 region ecoregion WMT because this ecoregion has too few least-disturbed stations of its own. 84 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.68 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.68 of evaluation regions; two thirds required; net optimism +0.17, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.04545454680919647, + 2.0840909481048584 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "WMT", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 375, + "nComparable": 84, + "nUsable": 84, + "nLocal": 1, + "nHuc12": 81, + "disposition": "adequate", + "family": "riparian", + "covariates": [ + "drainage_area_sqkm", + "precip8110ws" + ], + "selfCoverage": 0.75, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "84 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.68 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6842, + "net_opt": 0.1698, + "n_cells": 19, + "c1_share": 0.3684 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 0.1511363610625267, + "q50": 0.17272727191448212, + "q75": 0.23124999925494194 + }, + "stratifier": { + "key": "NhdDrainageAreaClass", + "variable": "drainage_area_sqkm", + "units": "km2", + "source": "NHDPlus V2 total drainage area", + "breaks": [ + 10.0, + 100.0 + ], + "right": true, + "classes": [ + { + "key": "le_10", + "label": "Headwater (10 km2 and under)", + "hasCurve": false, + "n": 1 + }, + { + "key": "10_to_100", + "label": "Small stream (10 to 100 km2)", + "hasCurve": true, + "n": 50 + }, + { + "key": "gt_100", + "label": "Large stream (over 100 km2)", + "hasCurve": true, + "n": 33 + } + ], + "registryVersion": 1, + "status": "accept" + }, + "discrimination": { + "aucRefVsPressure": 0.613, + "nRef": 84, + "nPressure": 130, + "medianRefIndex": 0.825, + "medianPressureIndex": 0.732, + "aucRvsIm": 0.635, + "nR": 40, + "nIm": 54, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.6842, + "net_opt": 0.1698, + "n_cells": 19, + "c1_share": 0.3684 + }, + "transferNote": "84 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, precipitation. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source promoted sites systematically. The test found class agreement 0.68 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "curveLayers": [ + { + "stratum": "", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.11235389113426208, + "y": 0.3 + }, + { + "x": 0.2621590793132782, + "y": 0.7 + }, + { + "x": 0.5784090757369995, + "y": 1.0 + }, + { + "x": 0.7365340739488602, + "y": 1.0 + } + ] + }, + { + "stratum": "10_to_100", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.12077922054699489, + "y": 0.3 + }, + { + "x": 0.2818181812763214, + "y": 0.7 + }, + { + "x": 0.6755681931972504, + "y": 1.0 + }, + { + "x": 0.8724431991577148, + "y": 1.0 + } + ] + }, + { + "stratum": "gt_100", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.09740260030542101, + "y": 0.3 + }, + { + "x": 0.22727273404598236, + "y": 0.7 + }, + { + "x": 0.45681819319725037, + "y": 1.0 + }, + { + "x": 0.5715909227728844, + "y": 1.0 + } + ] + } + ], + "activeStratum": "", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "population-support", + "functionName": "Population support", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-fish-nat-totlntax", + "metricName": "Native fish taxa richness", + "inputType": "count", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Native fish taxa richness", + "howToMeasure": "Native fish taxa richness; higher is better.", + "methodContext": "Electrofish the sampling reach in an upstream direction, working every habitat between the transects, and identify and count every fish. The value is the number of native taxa.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.42857142857142855, + "y": 0.3 + }, + { + "x": 1.0, + "y": 0.7 + }, + { + "x": 5.0, + "y": 1.0 + }, + { + "x": 7.0, + "y": 1.0 + } + ] + }, + "referenceN": 35, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference expectation likely varies with ElevationClass (cross-validated improvement 26%, resample recurrence 84%); the curve is unstratified pending a larger reference pool, so sites at either end of that gradient may read as departures that are natural.", + "The reference stations for this curve were borrowed from NARS-9 region ecoregion WMT because this ecoregion has too few least-disturbed stations of its own. 35 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. The national scale analysis supports this metric at Level II, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 0.0, + 9.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "WMT", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 375, + "nComparable": 48, + "nUsable": 35, + "nLocal": 1, + "nHuc12": 35, + "disposition": "adequate", + "family": "biology", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "tmean8110ws" + ], + "selfCoverage": 0.875, + "supportedLevel": "l2", + "transferRisk": "moderate", + "transferNote": "35 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region WMT, 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. The national scale analysis supports this metric at Level II, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 7, + "q25": 4.5, + "q50": 6.0, + "q75": 10.5 + }, + "discrimination": { + "aucRefVsPressure": 0.583, + "nRef": 35, + "nPressure": 90, + "medianRefIndex": 0.85, + "medianPressureIndex": 0.775, + "aucRvsIm": 0.28, + "nR": 29, + "nIm": 40, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-bent-totlntax", + "metricName": "Benthic total taxa richness", + "inputType": "count", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Benthic total taxa richness", + "howToMeasure": "Total benthic taxa richness; higher is better.", + "methodContext": "From the same 11-transect composite D-frame net sample (500 micrometer mesh) and laboratory subsample. The value is the total number of taxa.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 15.214285714285714, + "y": 0.3 + }, + { + "x": 35.5, + "y": 0.7 + }, + { + "x": 47.0, + "y": 1.0 + }, + { + "x": 52.75, + "y": 1.0 + } + ] + }, + "referenceN": 55, + "curveCaveats": [ + "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + ], + "confidenceLabel": "Low", + "confidenceTotal": 50.2, + "criteriaBasis": "reference", + "referenceSupport": { + "status": "national", + "level": null, + "levelLabel": "", + "regionCode": "national", + "regionName": "National least-disturbed pool", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 254, + "nComparable": 55, + "nUsable": 55, + "nLocal": 0, + "nHuc12": 51, + "disposition": "adequate", + "family": "biology", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "moderate", + "transferNote": "55 least-disturbed stations from the national pool whose natural setting falls inside this ecoregion's comparability envelope, none inside this ecoregion. Every donor drains to this ecoregion's faunal province.", + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 36.5, + "q50": 42.0, + "q75": 46.0 + }, + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it.", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "community-dynamics", + "functionName": "Community dynamics", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-bent-ept-ntax", + "metricName": "EPT taxa richness", + "inputType": "count", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "EPT taxa richness", + "howToMeasure": "EPT (mayfly/stonefly/caddisfly) taxa richness; more sensitive taxa indicate better condition.", + "methodContext": "Collect one D-frame net sample (500 micrometer mesh) one meter downstream of each of the 11 transects at the assigned left, center or right station, and composite them. A laboratory identifies a fixed count subsample. The value is the number of mayfly, stonefly and caddisfly taxa.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 5.571428571428571, + "y": 0.3 + }, + { + "x": 13.0, + "y": 0.7 + }, + { + "x": 20.25, + "y": 1.0 + }, + { + "x": 23.875, + "y": 1.0 + } + ] + }, + "referenceN": 24, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 7.1 (Marine West Coast Forest) because this ecoregion has too few least-disturbed stations of its own. 24 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.50 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.01, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.50 of evaluation regions; two thirds required); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 3.0, + 24.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "7.1", + "regionName": "Marine West Coast Forest", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 42, + "nComparable": 24, + "nUsable": 24, + "nLocal": 1, + "nHuc12": 22, + "disposition": "adequate", + "family": "biology", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "tmean8110ws" + ], + "selfCoverage": 0.875, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "24 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.50 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.01, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5, + "net_opt": 0.0143, + "n_cells": 18, + "c1_share": 0.2222 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 6.25, + "q50": 10.0, + "q75": 12.0 + }, + "discrimination": { + "aucRefVsPressure": 0.628, + "nRef": 24, + "nPressure": 31, + "medianRefIndex": 0.86, + "medianPressureIndex": 0.783, + "aucRvsIm": null, + "nR": 3, + "nIm": 7, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5, + "net_opt": 0.0143, + "n_cells": 18, + "c1_share": 0.2222 + }, + "transferNote": "24 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 7.1 (Marine West Coast Forest), 1 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.50 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.01, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-bent-hprime", + "metricName": "Shannon diversity (H')", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Shannon diversity (H')", + "howToMeasure": "Benthic Shannon diversity; higher diversity indicates better condition.", + "methodContext": "From the same 11-transect composite D-frame net sample (500 micrometer mesh) and laboratory subsample. The value is the Shannon diversity of the taxa counted.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 3), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 1.1464286020823888, + "y": 0.3 + }, + { + "x": 2.6750000715255737, + "y": 0.7 + }, + { + "x": 3.15500009059906, + "y": 1.0 + }, + { + "x": 3.3950001001358032, + "y": 1.0 + } + ] + }, + "referenceN": 55, + "curveCaveats": [ + "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + ], + "confidenceLabel": "Low", + "confidenceTotal": 50.2, + "criteriaBasis": "reference", + "referenceSupport": { + "status": "national", + "level": null, + "levelLabel": "", + "regionCode": "national", + "regionName": "National least-disturbed pool", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 254, + "nComparable": 55, + "nUsable": 55, + "nLocal": 0, + "nHuc12": 51, + "disposition": "adequate", + "family": "biology", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "moderate", + "transferNote": "55 least-disturbed stations from the national pool whose natural setting falls inside this ecoregion's comparability envelope, none inside this ecoregion. Every donor drains to this ecoregion's faunal province.", + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "the quarter of this ecoregion's stations with the lowest landscape pressure (too few pass the relaxed screen)", + "n": 8, + "q25": 2.4524999260902405, + "q50": 2.7699999809265137, + "q75": 3.1625000834465027 + }, + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it.", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "watershed-connectivity", + "functionName": "Watershed connectivity", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-nid-dams-1mi", + "metricName": "Mapped dams within one mile", + "inputType": "count", + "sourceCitation": "EASI fixed criteria, Nearby dam-proximity proxy", + "xLabel": "Mapped dams within one mile (dams)", + "howToMeasure": "Mapped dams within one mile is scored on the same fixed criteria EASI uses in every region. Good 0 mapped dams, Fair 1 mapped dam, Poor ≥2 mapped dams.", + "methodContext": "Number of dams in the USACE National Inventory of Dams within one mile of the site. DEEP counts them. Note in the field any barrier the inventory does not show.", + "curve": { + "layerName": "EASI fixed criteria, Nearby dam-proximity proxy", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 1.0, + "y": 0.545 + }, + { + "x": 2.0, + "y": 0.195 + }, + { + "x": 3.0, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Nearby dam-proximity proxy", + "easiMethod": "nearby-dam-proximity", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "0 mapped dams" + }, + { + "rating": "Fair", + "label": "1 mapped dam" + }, + { + "rating": "Poor", + "label": "≥2 mapped dams" + } + ], + "citations": [ + { + "key": "nid", + "text": "USACE National Inventory of Dams" + } + ], + "limitations": [ + "A mapped dam count is a proximity screen and cannot confirm passability or the severity of a barrier.", + "NID carries about 91,000 regulated dams while the National Aquatic Barrier Inventory maps over 500,000 barriers of all sizes, so zero mapped dams is frequently a false negative for passage.", + "Query failure is unscored, not Good." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Biology", + "assignmentOrigin": "canonical" + } + ] + } + ], + "functionCoverage": { + "framework": "staf-20", + "total": 20, + "covered": 20, + "excluded": 0, + "missing": 0, + "coveredFunctionIds": [ + "catchment-hydrology", + "surface-water-storage", + "reach-inflow", + "streamflow-regime", + "low-flow-baseflow-dynamics", + "high-flow-dynamics", + "floodplain-connectivity", + "hyporheic-connectivity", + "channel-evolution", + "channel-floodplain-dynamics", + "sediment-continuity", + "bed-composition-bedform-dynamics", + "light-thermal-regime", + "carbon-processing", + "nutrient-cycling", + "water-soil-quality", + "habitat-provision", + "population-support", + "community-dynamics", + "watershed-connectivity" + ], + 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borrow comparable least-disturbed stations from a wider region, stating the region and the transfer risk. 4 carry the national reference label: reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own. 5 carry the published benchmark label: scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's. 11 rest on a flagged transfer: a comparable least-disturbed pool the recovery test did not confirm for this ecoregion, used because no validated source supports the metric here, with transfer risk unvalidated and confidence capped. 1 function rests on a method adopted from EASI's national screening method (provisional), because no reference pool, national donor, model, published benchmark or flagged transfer supported the function in this ecoregion. A metric that no basis supports is not scored, and the function it would have scored is reported as unassessed.", + "nHeldForReview": 0 + }, + "insufficientReferenceSupport": [ + { + "metricId": "spring-chem-ph", + "metricKey": "chem_PH", + "metricName": "pH", + "units": "Std. Units", + "functions": [ + { + "functionId": "water-soil-quality", + "functionName": "Water and soil quality" + } + ], + "functionId": "water-soil-quality", + "reason": "measurement-precision-floor", + "statement": "Measurement-precision floor. The Functioning core of this two-sided curve spans 0.327 Std. Units (7.49 to 7.82 Std. Units at n = 16), narrower than 0.4 Std. Units, 2 times the metric's documented measurement precision of 0.2 Std. Units, so band assignments inside it would present measurement noise as condition classes and the metric is withheld at the build under rule CURVE-09. No curve was built and the metric is not scored.", + "levelsTried": [ + { + "level": "l3", + "region_code": "3", + "n_pool": 1, + "n_comparable": 1, + "n_usable": 1, + "n_local": 1 + }, + { + "level": "l3", + "region_code": "3", + "n_pool": 1, + "n_comparable": 1, + "n_usable": 1, + "n_local": 1 + }, + { + "level": "l2", + "region_code": "7.1", + "n_pool": 42, + "n_comparable": 16, + "n_usable": 16, + "n_local": 1 + } + ], + "rungsTried": [], + "rule": "CURVE-09", + "detail": { + "precision_sd": 0.2, + "core_multiple": 2.0, + "floor_width": 0.4, + "functioning_core_width": 0.3272501945999995, + "functioning_min": 7.4926249027, + "functioning_max": 7.8198750973, + "units": "Std. Units", + "n_reference": 16 + } + } + ], + "contentDigest": "sha256:240ddb45e155df064882b97c9de783d1375d92d9c2e3780e20f78634617f920c", + "library": { + "libraryId": "willamette-valley", + "version": 1, + "updatedAt": "2026-09-30T07:06:50Z", + "author": "StreamCurves regional analysis (STAF)", + "revisionNotes": "Reference condition is the fixed landscape-pressure screen least-disturbed-v1 (strict), wadeable non-canal frame. 1 of 8 stations of this ecoregion pass. 0 reference curves use local stations, 21 borrow from a wider region, 5 metrics use fixed criteria, and 2 metrics are withheld for insufficient reference support.", + "region": { + "kind": "ecoregion", + "code": "3", + "name": "Willamette Valley" + }, + "contentDigest": "sha256:240ddb45e155df064882b97c9de783d1375d92d9c2e3780e20f78634617f920c", + "supersedesVersion": null + } +} diff --git a/library/willamette-valley-v1-calculator-000dfcaa.000dfcaa99cc.xlsx b/library/willamette-valley-v1-calculator-000dfcaa.000dfcaa99cc.xlsx new file mode 100644 index 0000000000000000000000000000000000000000..cdddc23ee71a78f80aeb548b04641fae65869915 Binary files /dev/null and b/library/willamette-valley-v1-calculator-000dfcaa.000dfcaa99cc.xlsx differ diff --git a/library/wy-sqt-adapted-v1-1538691f.deep.1538691fbc7e.json b/library/wy-sqt-adapted-v1-1538691f.deep.1538691fbc7e.json new file mode 100644 index 0000000000000000000000000000000000000000..b082bb4fb1085cb9a6199218352ed21025e67681 --- /dev/null +++ b/library/wy-sqt-adapted-v1-1538691f.deep.1538691fbc7e.json @@ -0,0 +1,1476 @@ +{ + "schemaVersion": 1, + "tier": "detailed", + "assessmentId": "wy-sqt-adapted", + "assessmentName": "WY SQT Adapted", + "stateCode": "WY", + "stateName": "Wyoming", + "sourceCitation": "Wyoming SQT", + "applicability": "Wyoming streams", + "metricsByFunction": [ + { + "functionId": "catchment-hydrology", + "functionName": "Catchment hydrology", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "catchment-hydrology-land-use-coefficient", + "metricName": "Land Use Coefficient", + "discipline": "Hydrology", + "inputType": "desktop (gis)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Land Use Coefficient", + "metricStatement": "Catchment land cover/soil condition used as a surrogate for runoff/infiltration and stress from development or land conversion.", + "howToMeasure": "Delineate watershed for the reach; compute metric from land cover/impervious (e.g., NLCD) and/or soils (NRCS). Apply the state SQT scoring breakpoints.", + "methodContext": "Context: Watershed\n\nMethod: Desktop (GIS)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 45, + "y": 1 + }, + { + "x": 62, + "y": 0.7 + }, + { + "x": 80, + "y": 0 + } + ] + } + } + ] + }, + { + "functionId": "reach-inflow", + "functionName": "Reach inflow", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "reach-inflow-concentrated-flow-points", + "metricName": "Concentrated Flow Points", + "discipline": "Hydrology", + "inputType": "field (with desktop pre-screen)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Concentrated Flow Points", + "metricStatement": "Count of concentrated inflow locations (ditches, pipes, outfalls) that can deliver runoff, sediment, or pollutants to the reach.", + "howToMeasure": "Walk the reach (or use imagery pre-screen) and count concentrated inflow points; normalize by reach length (e.g., per 1,000 ft or per 100 m).", + "methodContext": "Context: Channel\n\nMethod: Field (with desktop pre-screen)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 0, + "y": 1 + }, + { + "x": 1, + "y": 0.69 + } + ] + } + } + ] + }, + { + "functionId": "streamflow-regime", + "functionName": "Streamflow regime", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "streamflow-regime-flow-alteration-module", + "metricName": "Flow Alteration Module", + "discipline": "Hydrology", + "inputType": "desktop (hydrology/flow analysis)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Flow Alteration Module", + "metricStatement": "Composite indicator of departure from natural flow timing, magnitude, and variability due to regulation, withdrawals, or land use.", + "howToMeasure": "Compile daily discharge (or model outputs). Calculate the module score per SQT guidance (often based on multiple IHA-style metrics).", + "methodContext": "Context: Watershed\n\nMethod: Desktop (hydrology/flow analysis)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - ALL METRICS", + "stratification": "ALL METRICS", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 0.9, + "y": 1 + } + ] + } + } + ] + }, + { + "functionId": "low-flow-baseflow-dynamics", + "functionName": "Low flow and baseflow dynamics", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "low-flow-and-baseflow-dynamics-average-depth", + "metricName": "Average Depth", + "discipline": "Hydraulics", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "Average Depth", + "metricStatement": "Typical water depth at baseflow conditions used to infer low-flow habitat availability.", + "howToMeasure": "Measure water depth at multiple transects during representative low flow and compute average; apply stratified scoring breakpoints.", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - Tier I, W < 20'", + "stratification": "Tier I, W < 20'", + "points": [ + { + "x": 0.2, + "y": 0 + }, + { + "x": 1, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Tier I, W < 20'", + "layerName": "Wyoming SQT - Tier I, W < 20'", + "points": [ + { + "x": 0.2, + "y": 0 + }, + { + "x": 1, + "y": 1 + } + ] + }, + { + "stratum": "Tier I, W >20'", + "layerName": "Wyoming SQT - Tier I, W >20'", + "points": [ + { + "x": 0.4, + "y": 0 + }, + { + "x": 1.5, + "y": 1 + } + ] + }, + { + "stratum": "Tier II", + "layerName": "Wyoming SQT - Tier II", + "points": [ + { + "x": 0.6, + "y": 0 + }, + { + "x": 2.3, + "y": 1 + } + ] + } + ], + "activeStratum": "Tier I, W < 20'" + } + ] + }, + { + "functionId": "floodplain-connectivity", + "functionName": "Floodplain connectivity", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "floodplain-connectivity-entrenchment-ratio-er", + "metricName": "Entrenchment Ratio (ER)", + "discipline": "Hydraulics", + "inputType": "field (survey) or desktop (lidar cross sections)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Entrenchment Ratio (ER)", + "metricStatement": "Degree of floodplain access during moderate floods; low ER indicates incision and reduced overbank connectivity.", + "howToMeasure": "Measure flood-prone width and bankfull width/depth per SQT method; compute ER = flood-prone width / bankfull width (or per SQT definition).", + "methodContext": "Context: Channel/Floodplain\n\nMethod: Field (survey) or Desktop (LiDAR cross sections)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - Cb Stream Types", + "stratification": "Cb Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 2.2, + "y": 0.7 + }, + { + "x": 3.9, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Cb Stream Types", + "layerName": "Wyoming SQT - Cb Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 2.2, + "y": 0.7 + }, + { + "x": 3.9, + "y": 1 + } + ] + }, + { + "stratum": "C Stream Types", + "layerName": "Wyoming SQT - C Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 2.2, + "y": 0.7 + }, + { + "x": 4.4, + "y": 1 + } + ] + }, + { + "stratum": "E Stream Types", + "layerName": "Wyoming SQT - E Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 2.2, + "y": 0.7 + }, + { + "x": 6.5, + "y": 1 + } + ] + }, + { + "stratum": "A, B, Ba, and Bc Stream Types", + "layerName": "Wyoming SQT - A, B, Ba, and Bc Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 1.4, + "y": 0.7 + }, + { + "x": 2.2, + "y": 1 + } + ] + } + ], + "activeStratum": "Cb Stream Types" + } + ] + }, + { + "functionId": "channel-evolution", + "functionName": "Channel evolution", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "channel-evolution-width-depth-ratio-state", + "metricName": "Width/Depth Ratio State", + "discipline": "Geomorphology", + "inputType": "field (survey)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Width/Depth Ratio State", + "metricStatement": "Channel dimension indicator used to infer incision/widening or departure from reference geometry.", + "howToMeasure": "Measure bankfull width and mean depth at representative cross sections; compute W/D and compare to expected (regional curves or SQT reference).", + "methodContext": "Context: Channel\n\nMethod: Field (survey)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 0.2, + "y": 0 + }, + { + "x": 1, + "y": 1 + } + ] + } + } + ] + }, + { + "functionId": "channel-floodplain-dynamics", + "functionName": "Channel and floodplain dynamics", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "channel-and-floodplain-dynamics-bank-height-ratio-bhr", + "metricName": "Bank Height Ratio (BHR)", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "Bank Height Ratio (BHR)", + "metricStatement": "Bank stability/erosion and protection condition influencing channel change, sediment delivery, and habitat structure.", + "howToMeasure": "Map eroding and armored bank length, measure bank height and bankfull stage where needed, and/or score greenline stability per SQT protocol; compute percent lengths or ratios.", + "methodContext": "Context: Channel/Riparian\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 1, + "y": 1 + }, + { + "x": 1.5, + "y": 0.3 + } + ] + } + }, + { + "metricId": "channel-and-floodplain-dynamics-greenline-stability-rating", + "metricName": "Greenline Stability Rating", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "Greenline Stability Rating", + "metricStatement": "Bank stability/erosion and protection condition influencing channel change, sediment delivery, and habitat structure.", + "howToMeasure": "Map eroding and armored bank length, measure bank height and bankfull stage where needed, and/or score greenline stability per SQT protocol; compute percent lengths or ratios.", + "methodContext": "Context: Channel/Riparian\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 2, + "y": 0 + }, + { + "x": 5, + "y": 0.3 + }, + { + "x": 7, + "y": 0.7 + }, + { + "x": 9, + "y": 1 + } + ] + } + }, + { + "metricId": "channel-and-floodplain-dynamics-percent-side-channels", + "metricName": "Percent Side Channels", + "discipline": "Geomorphology", + "inputType": "see state sqt protocol", + "sourceCitation": "Wyoming SQT", + "xLabel": "Percent Side Channels", + "metricStatement": "Metric definition and measurement are state SQT-specific.", + "howToMeasure": "Follow the state SQT metric definition and apply the scoring breakpoints for the appropriate stratum.", + "methodContext": "Context: Varies\n\nMethod: See state SQT protocol", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - Unconfined Alluvial", + "stratification": "Unconfined Alluvial", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 10, + "y": 0.3 + }, + { + "x": 50, + "y": 0.7 + }, + { + "x": 100, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Unconfined Alluvial", + "layerName": "Wyoming SQT - Unconfined Alluvial", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 10, + "y": 0.3 + }, + { + "x": 50, + "y": 0.7 + }, + { + "x": 100, + "y": 1 + } + ] + }, + { + "stratum": "Confined Alluvial", + "layerName": "Wyoming SQT - Confined Alluvial", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 5, + "y": 0.3 + }, + { + "x": 25, + "y": 0.7 + }, + { + "x": 50, + "y": 1 + } + ] + } + ], + "activeStratum": "Unconfined Alluvial" + }, + { + "metricId": "channel-and-floodplain-dynamics-percent-streambank-armoring", + "metricName": "Percent Streambank Armoring", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "Percent Streambank Armoring", + "metricStatement": "Bank stability/erosion and protection condition influencing channel change, sediment delivery, and habitat structure.", + "howToMeasure": "Map eroding and armored bank length, measure bank height and bankfull stage where needed, and/or score greenline stability per SQT protocol; compute percent lengths or ratios.", + "methodContext": "Context: Channel/Riparian\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 0, + "y": 1 + }, + { + "x": 30, + "y": 0 + } + ] + } + }, + { + "metricId": "channel-and-floodplain-dynamics-percent-streambank-erosion", + "metricName": "Percent Streambank Erosion", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "Percent Streambank Erosion", + "metricStatement": "Bank stability/erosion and protection condition influencing channel change, sediment delivery, and habitat structure.", + "howToMeasure": "Map eroding and armored bank length, measure bank height and bankfull stage where needed, and/or score greenline stability per SQT protocol; compute percent lengths or ratios.", + "methodContext": "Context: Channel/Riparian\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 5, + "y": 1 + }, + { + "x": 10, + "y": 0.7 + }, + { + "x": 75, + "y": 0 + } + ] + } + } + ] + }, + { + "functionId": "bed-composition-bedform-dynamics", + "functionName": "Bed composition and large wood", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "bed-composition-and-large-wood-percent-fines-2mm", + "metricName": "Percent Fines < 2mm", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "Percent Fines < 2mm", + "metricStatement": "Streambed substrate size distribution used to infer habitat quality, sediment transport, and embeddedness/fine sediment stress.", + "howToMeasure": "Conduct pebble count or substrate characterization per SQT method; compute percent fines or D50 and apply scoring thresholds (stratified by bed type where needed).", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 5, + "y": 1 + }, + { + "x": 15, + "y": 0.7 + }, + { + "x": 50, + "y": 0 + } + ] + } + } + ] + }, + { + "functionId": "light-thermal-regime", + "functionName": "Light & thermal regime", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "light-and-thermal-regime-maximum-weekly-average-temperature-mwat", + "metricName": "Maximum Weekly Average Temperature (MWAT)", + "discipline": "Physicochemistry", + "inputType": "field (logger) and/or desktop (data compilation)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Maximum Weekly Average Temperature (MWAT)", + "metricStatement": "Thermal condition (maximum or weekly average temperature) used to assess heat stress risk and habitat suitability.", + "howToMeasure": "Deploy temperature logger (or compile existing records) over summer season; compute statistic (daily max, MWAT, July mean) and score against stratified thresholds.", + "methodContext": "Context: Channel\n\nMethod: Field (logger) and/or Desktop (data compilation)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - Tier I (Cold)", + "stratification": "Tier I (Cold)", + "points": [ + { + "x": 15.4, + "y": 0.7 + }, + { + "x": 18.1, + "y": 0.3 + } + ] + }, + "curveLayers": [ + { + "stratum": "Tier I (Cold)", + "layerName": "Wyoming SQT - Tier I (Cold)", + "points": [ + { + "x": 15.4, + "y": 0.7 + }, + { + "x": 18.1, + "y": 0.3 + } + ] + }, + { + "stratum": "Tier II (Cold-Cool)", + "layerName": "Wyoming SQT - Tier II (Cold-Cool)", + "points": [ + { + "x": 17.7, + "y": 0.7 + }, + { + "x": 19.3, + "y": 0.3 + } + ] + }, + { + "stratum": "Tier III (Cool)", + "layerName": "Wyoming SQT - Tier III (Cool)", + "points": [ + { + "x": 19.9, + "y": 0.7 + }, + { + "x": 22, + "y": 0.3 + } + ] + }, + { + "stratum": "Tier IV (Cool-Warm)", + "layerName": "Wyoming SQT - Tier IV (Cool-Warm)", + "points": [ + { + "x": 24.4, + "y": 0.7 + }, + { + "x": 26, + "y": 0.3 + } + ] + }, + { + "stratum": "Tier V (Warm)", + "layerName": "Wyoming SQT - Tier V (Warm)", + "points": [ + { + "x": 27.3, + "y": 0.7 + }, + { + "x": 29, + "y": 0.3 + } + ] + } + ], + "activeStratum": "Tier I (Cold)" + } + ] + }, + { + "functionId": "carbon-processing", + "functionName": "Carbon processing", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "carbon-processing-chlorophyll", + "metricName": "Chlorophyll ?", + "discipline": "Physicochemistry", + "inputType": "field (sampling/assay)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Chlorophyll ?", + "metricStatement": "Indicator of primary production or detrital processing that supports food webs and stream metabolism.", + "howToMeasure": "Collect periphyton/algal samples (or estimate biomass) and compute chlorophyll-a or biomass metric; apply SQT thresholds by biotype.", + "methodContext": "Context: Channel\n\nMethod: Field (sampling/assay)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - Basins and Plains", + "stratification": "Basins and Plains", + "points": [ + { + "x": 16, + "y": 1 + }, + { + "x": 29, + "y": 0.7 + }, + { + "x": 117, + "y": 0.3 + }, + { + "x": 150, + "y": 0 + } + ] + }, + "curveLayers": [ + { + "stratum": "Basins and Plains", + "layerName": "Wyoming SQT - Basins and Plains", + "points": [ + { + "x": 16, + "y": 1 + }, + { + "x": 29, + "y": 0.7 + }, + { + "x": 117, + "y": 0.3 + }, + { + "x": 150, + "y": 0 + } + ] + }, + { + "stratum": "Mountains", + "layerName": "Wyoming SQT - Mountains", + "points": [ + { + "x": 12, + "y": 1 + }, + { + "x": 26.75, + "y": 0.7 + }, + { + "x": 53, + "y": 0.3 + } + ] + } + ], + "activeStratum": "Basins and Plains" + }, + { + "metricId": "carbon-processing-herbaceous-vegetation-cover", + "metricName": "Herbaceous Vegetation Cover", + "discipline": "Physicochemistry", + "inputType": "field and/or desktop (imagery/gis)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Herbaceous Vegetation Cover", + "metricStatement": "Riparian vegetation condition and composition influencing organic matter inputs, bank stability, and habitat quality.", + "howToMeasure": "Measure riparian corridor attributes (extent, cover, composition, stem density, basal area) per SQT guidance and apply stratified thresholds (valley type/region).", + "methodContext": "Context: Riparian/Floodplain\n\nMethod: Field and/or Desktop (imagery/GIS)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 35, + "y": 0 + }, + { + "x": 74, + "y": 0.7 + }, + { + "x": 119, + "y": 1 + } + ] + } + }, + { + "metricId": "carbon-processing-percent-native-cover", + "metricName": "Percent Native Cover", + "discipline": "Physicochemistry", + "inputType": "field and/or desktop (imagery/gis)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Percent Native Cover", + "metricStatement": "Riparian vegetation condition and composition influencing organic matter inputs, bank stability, and habitat quality.", + "howToMeasure": "Measure riparian corridor attributes (extent, cover, composition, stem density, basal area) per SQT guidance and apply stratified thresholds (valley type/region).", + "methodContext": "Context: Riparian/Floodplain\n\nMethod: Field and/or Desktop (imagery/GIS)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 65, + "y": 0.3 + }, + { + "x": 91, + "y": 0.69 + }, + { + "x": 100, + "y": 1 + } + ] + } + }, + { + "metricId": "carbon-processing-riparian-extent", + "metricName": "Riparian Extent", + "discipline": "Physicochemistry", + "inputType": "field and/or desktop (imagery/gis)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Riparian Extent", + "metricStatement": "Riparian vegetation condition and composition influencing organic matter inputs, bank stability, and habitat quality.", + "howToMeasure": "Measure riparian corridor attributes (extent, cover, composition, stem density, basal area) per SQT guidance and apply stratified thresholds (valley type/region).", + "methodContext": "Context: Riparian/Floodplain\n\nMethod: Field and/or Desktop (imagery/GIS)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - Unconfined Alluvial Valleys", + "stratification": "Unconfined Alluvial Valleys", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 30, + "y": 0.3 + }, + { + "x": 100, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Unconfined Alluvial Valleys", + "layerName": "Wyoming SQT - Unconfined Alluvial Valleys", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 30, + "y": 0.3 + }, + { + "x": 100, + "y": 1 + } + ] + }, + { + "stratum": "Confined Alluvial, Colluvial/V-Shaped, or Bedrock Valleys", + "layerName": "Wyoming SQT - Confined Alluvial, Colluvial/V-Shaped, or Bedrock Valleys", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 60, + "y": 0.3 + }, + { + "x": 100, + "y": 1 + } + ] + } + ], + "activeStratum": "Unconfined Alluvial Valleys" + }, + { + "metricId": "carbon-processing-woody-vegetation-cover", + "metricName": "Woody Vegetation Cover", + "discipline": "Physicochemistry", + "inputType": "field and/or desktop (imagery/gis)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Woody Vegetation Cover", + "metricStatement": "Riparian vegetation condition and composition influencing organic matter inputs, bank stability, and habitat quality.", + "howToMeasure": "Measure riparian corridor attributes (extent, cover, composition, stem density, basal area) per SQT guidance and apply stratified thresholds (valley type/region).", + "methodContext": "Context: Riparian/Floodplain\n\nMethod: Field and/or Desktop (imagery/GIS)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - Mountains and Basins", + "stratification": "Mountains and Basins", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 69, + "y": 0.7 + }, + { + "x": 122, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Mountains and Basins", + "layerName": "Wyoming SQT - Mountains and Basins", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 69, + "y": 0.7 + }, + { + "x": 122, + "y": 1 + } + ] + }, + { + "stratum": "Plains", + "layerName": "Wyoming SQT - Plains", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 76, + "y": 1 + }, + { + "x": 101, + "y": 0.29 + } + ] + } + ], + "activeStratum": "Mountains and Basins" + } + ] + }, + { + "functionId": "habitat-provision", + "functionName": "Habitat provision", + "discipline": "Biology", + "metrics": [ + { + "metricId": "habitat-provision-lwd-index", + "metricName": "LWD Index", + "discipline": "Biology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "LWD Index", + "metricStatement": "In-stream habitat structure metric (pools/riffles/wood) indicating habitat diversity and cover for aquatic organisms.", + "howToMeasure": "Walk a representative reach and count large woody debris pieces/jams per unit length (e.g., per 100 m) following SQT definitions.", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 430, + "y": 0.7 + }, + { + "x": 660, + "y": 1 + } + ] + } + }, + { + "metricId": "habitat-provision-lwd-piece-count", + "metricName": "LWD Piece Count", + "discipline": "Biology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "LWD Piece Count", + "metricStatement": "In-stream habitat structure metric (pools/riffles/wood) indicating habitat diversity and cover for aquatic organisms.", + "howToMeasure": "Walk a representative reach and count large woody debris pieces/jams per unit length (e.g., per 100 m) following SQT definitions.", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 13, + "y": 0.7 + }, + { + "x": 28, + "y": 1 + } + ] + } + }, + { + "metricId": "habitat-provision-percent-riffle", + "metricName": "Percent Riffle", + "discipline": "Biology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "Percent Riffle", + "metricStatement": "In-stream habitat structure metric (pools/riffles/wood) indicating habitat diversity and cover for aquatic organisms.", + "howToMeasure": "Map riffle and pool units along the reach; compute ratios (pool spacing or pool depth ratio) or percent riffle by length following SQT definitions.", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - Streams < 3% slope", + "stratification": "Streams < 3% slope", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 60, + "y": 0.7 + }, + { + "x": 68, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Streams < 3% slope", + "layerName": "Wyoming SQT - Streams < 3% slope", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 60, + "y": 0.7 + }, + { + "x": 68, + "y": 1 + } + ] + }, + { + "stratum": "Streams < 3% slope / Overall", + "layerName": "Wyoming SQT - Streams < 3% slope / Overall", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 39, + "y": 0.7 + }, + { + "x": 50, + "y": 1 + } + ] + }, + { + "stratum": "Volcanics Mountains and Valleys Bioregion", + "layerName": "Wyoming SQT - Volcanics Mountains and Valleys Bioregion", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 76, + "y": 0.7 + }, + { + "x": 80, + "y": 1 + } + ] + } + ], + "activeStratum": "Streams < 3% slope" + }, + { + "metricId": "habitat-provision-pool-depth-ratio", + "metricName": "Pool Depth Ratio", + "discipline": "Biology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "Pool Depth Ratio", + "metricStatement": "In-stream habitat structure metric (pools/riffles/wood) indicating habitat diversity and cover for aquatic organisms.", + "howToMeasure": "Map riffle and pool units along the reach; compute ratios (pool spacing or pool depth ratio) or percent riffle by length following SQT definitions.", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 2.2, + "y": 0.7 + }, + { + "x": 3.2, + "y": 1 + } + ] + } + }, + { + "metricId": "habitat-provision-pool-spacing-ratio", + "metricName": "Pool Spacing Ratio", + "discipline": "Biology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "Pool Spacing Ratio", + "metricStatement": "In-stream habitat structure metric (pools/riffles/wood) indicating habitat diversity and cover for aquatic organisms.", + "howToMeasure": "Map riffle and pool units along the reach; compute ratios (pool spacing or pool depth ratio) or percent riffle by length following SQT definitions.", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - B and Ba Stream Types", + "stratification": "B and Ba Stream Types", + "points": [ + { + "x": 3, + "y": 1 + }, + { + "x": 4, + "y": 0.7 + }, + { + "x": 7.5, + "y": 0 + } + ] + }, + "curveLayers": [ + { + "stratum": "B and Ba Stream Types", + "layerName": "Wyoming SQT - B and Ba Stream Types", + "points": [ + { + "x": 3, + "y": 1 + }, + { + "x": 4, + "y": 0.7 + }, + { + "x": 7.5, + "y": 0 + } + ] + }, + { + "stratum": "Bc Stream Types", + "layerName": "Wyoming SQT - Bc Stream Types", + "points": [ + { + "x": 3.4, + "y": 1 + }, + { + "x": 6, + "y": 0.7 + } + ] + }, + { + "stratum": "C Stream Types", + "layerName": "Wyoming SQT - C Stream Types", + "points": [ + { + "x": 3, + "y": 0 + }, + { + "x": 3.7, + "y": 0.7 + }, + { + "x": 4, + "y": 1 + } + ] + }, + { + "stratum": "Cb Stream Types", + "layerName": "Wyoming SQT - Cb Stream Types", + "points": [ + { + "x": 3, + "y": 0.7 + }, + { + "x": 3.7, + "y": 1 + } + ] + }, + { + "stratum": "E Stream Types", + "layerName": "Wyoming SQT - E Stream Types", + "points": [ + { + "x": 1.833333333, + "y": 0 + }, + { + "x": 3, + "y": 0.7 + }, + { + "x": 3.5, + "y": 1 + } + ] + } + ], + "activeStratum": "B and Ba Stream Types" + } + ] + }, + { + "functionId": "population-support", + "functionName": "Population support", + "discipline": "Biology", + "metrics": [ + { + "metricId": "population-support-game-species-biomass", + "metricName": "Game Species Biomass", + "discipline": "Biology", + "inputType": "field (fish survey)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Game Species Biomass", + "metricStatement": "Population abundance/biomass indicator reflecting recruitment and survival of target game/native species.", + "howToMeasure": "Estimate density/biomass (or % change from baseline) per SQT method and score using the appropriate tier/ribbon class thresholds.", + "methodContext": "Context: Channel\n\nMethod: Field (fish survey)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - Blue Ribbon and non-trout game fish", + "stratification": "Blue Ribbon and non-trout game fish", + "points": [ + { + "x": 5, + "y": 0.3 + }, + { + "x": 25, + "y": 0.7 + }, + { + "x": 40, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Blue Ribbon and non-trout game fish", + "layerName": "Wyoming SQT - Blue Ribbon and non-trout game fish", + "points": [ + { + "x": 5, + "y": 0.3 + }, + { + "x": 25, + "y": 0.7 + }, + { + "x": 40, + "y": 1 + } + ] + }, + { + "stratum": "Red Ribbon", + "layerName": "Wyoming SQT - Red Ribbon", + "points": [ + { + "x": 10, + "y": 0.3 + }, + { + "x": 50, + "y": 0.7 + }, + { + "x": 80, + "y": 1 + } + ] + }, + { + "stratum": "Yellow/Green Ribbon", + "layerName": "Wyoming SQT - Yellow/Green Ribbon", + "points": [ + { + "x": 15, + "y": 0.3 + }, + { + "x": 75, + "y": 0.7 + }, + { + "x": 119, + "y": 1 + } + ] + } + ], + "activeStratum": "Blue Ribbon and non-trout game fish" + } + ] + }, + { + "functionId": "community-dynamics", + "functionName": "Community dynamics", + "discipline": "Biology", + "metrics": [ + { + "metricId": "community-dynamics-native-fish-species-richness", + "metricName": "Native Fish Species Richness", + "discipline": "Biology", + "inputType": "field (fish survey) and/or desktop (existing data)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Native Fish Species Richness", + "metricStatement": "Community composition indicator reflecting native diversity and assemblage balance relative to expectation.", + "howToMeasure": "Survey fish community, compute richness (% of expected where defined) or abundance/biomass composition metrics, and score against SQT thresholds.", + "methodContext": "Context: Channel\n\nMethod: Field (fish survey) and/or Desktop (existing data)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 80, + "y": 0.69 + }, + { + "x": 100, + "y": 1 + } + ] + } + } + ] + } + ], + "region": { + "kind": "state", + "code": "WY", + "name": "Wyoming", + "polygon": { + "type": "Polygon", + "coordinates": [ + [ + [ + -109.0808, + 45.0021 + ], + [ + -105.9152, + 45.0021 + ], + [ + -104.0585, + 44.9966 + ], + [ + -104.053, + 43.003 + ], + [ + -104.053, + 41.0039 + ], + [ + -105.7289, + 40.9984 + ], + [ + -107.9197, + 41.0039 + ], + [ + -109.048, + 40.9984 + ], + [ + -111.0471, + 40.9984 + ], + [ + -111.0471, + 42.0007 + ], + [ + -111.0471, + 44.4763 + ], + [ + -111.0525, + 45.0021 + ], + [ + -109.0808, + 45.0021 + ] + ] + ] + } + }, + "contentDigest": "sha256:9d2260e43f0e3c57f3cb2a54819e36313a9012baf68a5e82bcba84cdae03615d", + "library": { + "libraryId": "wy-sqt-adapted", + "version": 1, + "updatedAt": "2026-07-12T01:57:26Z", + "author": "STAF SQT migration", + "revisionNotes": "Migrated from the STAF metric library (detailed-adapted-assessments.json).", + "region": { + "kind": "state", + "code": "WY", + "name": "Wyoming" + }, + "contentDigest": "sha256:9d2260e43f0e3c57f3cb2a54819e36313a9012baf68a5e82bcba84cdae03615d", + "supersedesVersion": null + } +} diff --git a/library/wy-sqt-adapted-v2-calculator-43be48b9.43be48b9b626.xlsx b/library/wy-sqt-adapted-v2-calculator-43be48b9.43be48b9b626.xlsx new file mode 100644 index 0000000000000000000000000000000000000000..a08525d39a24f2844ae01f5cbc81998b098f7c70 Binary files /dev/null and b/library/wy-sqt-adapted-v2-calculator-43be48b9.43be48b9b626.xlsx differ diff --git a/library/wy-sqt-adapted-v2-e515ac03.deep.e515ac03d832.json b/library/wy-sqt-adapted-v2-e515ac03.deep.e515ac03d832.json new file mode 100644 index 0000000000000000000000000000000000000000..c7ba6856246b015093de66f7570c9ab745a6d060 --- /dev/null +++ b/library/wy-sqt-adapted-v2-e515ac03.deep.e515ac03d832.json @@ -0,0 +1,1564 @@ +{ + "schemaVersion": 1, + "tier": "detailed", + "assessmentId": "wy-sqt-adapted", + "assessmentName": "WY SQT Adapted", + "stateCode": "WY", + "stateName": "Wyoming", + "sourceCitation": "Wyoming SQT", + "applicability": "Wyoming streams", + "metricsByFunction": [ + { + "functionId": "catchment-hydrology", + "functionName": "Catchment hydrology", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "catchment-hydrology-land-use-coefficient", + "metricName": "Land Use Coefficient", + "discipline": "Hydrology", + "inputType": "desktop (gis)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Land Use Coefficient", + "metricStatement": "Catchment land cover/soil condition used as a surrogate for runoff/infiltration and stress from development or land conversion.", + "howToMeasure": "Delineate watershed for the reach; compute metric from land cover/impervious (e.g., NLCD) and/or soils (NRCS). Apply the state SQT scoring breakpoints.", + "methodContext": "Context: Watershed\n\nMethod: Desktop (GIS)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 45, + "y": 1 + }, + { + "x": 62, + "y": 0.7 + }, + { + "x": 80, + "y": 0 + } + ] + } + } + ] + }, + { + "functionId": "reach-inflow", + "functionName": "Reach inflow", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "reach-inflow-concentrated-flow-points", + "metricName": "Concentrated Flow Points", + "discipline": "Hydrology", + "inputType": "field (with desktop pre-screen)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Concentrated Flow Points", + "metricStatement": "Count of concentrated inflow locations (ditches, pipes, outfalls) that can deliver runoff, sediment, or pollutants to the reach.", + "howToMeasure": "Walk the reach (or use imagery pre-screen) and count concentrated inflow points; normalize by reach length (e.g., per 1,000 ft or per 100 m).", + "methodContext": "Context: Channel\n\nMethod: Field (with desktop pre-screen)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 0, + "y": 1 + }, + { + "x": 1, + "y": 0.69 + } + ] + } + } + ] + }, + { + "functionId": "streamflow-regime", + "functionName": "Streamflow regime", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "streamflow-regime-flow-alteration-module", + "metricName": "Flow Alteration Module", + "discipline": "Hydrology", + "inputType": "desktop (hydrology/flow analysis)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Flow Alteration Module", + "metricStatement": "Composite indicator of departure from natural flow timing, magnitude, and variability due to regulation, withdrawals, or land use.", + "howToMeasure": "Compile daily discharge (or model outputs). Calculate the module score per SQT guidance (often based on multiple IHA-style metrics).", + "methodContext": "Context: Watershed\n\nMethod: Desktop (hydrology/flow analysis)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - ALL METRICS", + "stratification": "ALL METRICS", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 0.9, + "y": 1 + } + ] + } + } + ] + }, + { + "functionId": "low-flow-baseflow-dynamics", + "functionName": "Low flow and baseflow dynamics", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "low-flow-and-baseflow-dynamics-average-depth", + "metricName": "Average Depth", + "discipline": "Hydraulics", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "Average Depth", + "metricStatement": "Typical water depth at baseflow conditions used to infer low-flow habitat availability.", + "howToMeasure": "Measure water depth at multiple transects during representative low flow and compute average; apply stratified scoring breakpoints.", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - Tier I, W < 20'", + "stratification": "Tier I, W < 20'", + "points": [ + { + "x": 0.2, + "y": 0 + }, + { + "x": 1, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Tier I, W < 20'", + "layerName": "Wyoming SQT - Tier I, W < 20'", + "points": [ + { + "x": 0.2, + "y": 0 + }, + { + "x": 1, + "y": 1 + } + ] + }, + { + "stratum": "Tier I, W >20'", + "layerName": "Wyoming SQT - Tier I, W >20'", + "points": [ + { + "x": 0.4, + "y": 0 + }, + { + "x": 1.5, + "y": 1 + } + ] + }, + { + "stratum": "Tier II", + "layerName": "Wyoming SQT - Tier II", + "points": [ + { + "x": 0.6, + "y": 0 + }, + { + "x": 2.3, + "y": 1 + } + ] + } + ], + "activeStratum": "Tier I, W < 20'" + } + ] + }, + { + "functionId": "floodplain-connectivity", + "functionName": "Floodplain connectivity", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "floodplain-connectivity-entrenchment-ratio-er", + "metricName": "Entrenchment Ratio (ER)", + "discipline": "Hydraulics", + "inputType": "field (survey) or desktop (lidar cross sections)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Entrenchment Ratio (ER)", + "metricStatement": "Degree of floodplain access during moderate floods; low ER indicates incision and reduced overbank connectivity.", + "howToMeasure": "Measure flood-prone width and bankfull width/depth per SQT method; compute ER = flood-prone width / bankfull width (or per SQT definition).", + "methodContext": "Context: Channel/Floodplain\n\nMethod: Field (survey) or Desktop (LiDAR cross sections)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - Cb Stream Types", + "stratification": "Cb Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 2.2, + "y": 0.7 + }, + { + "x": 3.9, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Cb Stream Types", + "layerName": "Wyoming SQT - Cb Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 2.2, + "y": 0.7 + }, + { + "x": 3.9, + "y": 1 + } + ] + }, + { + "stratum": "C Stream Types", + "layerName": "Wyoming SQT - C Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 2.2, + "y": 0.7 + }, + { + "x": 4.4, + "y": 1 + } + ] + }, + { + "stratum": "E Stream Types", + "layerName": "Wyoming SQT - E Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 2.2, + "y": 0.7 + }, + { + "x": 6.5, + "y": 1 + } + ] + }, + { + "stratum": "A, B, Ba, and Bc Stream Types", + "layerName": "Wyoming SQT - A, B, Ba, and Bc Stream Types", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 1.4, + "y": 0.7 + }, + { + "x": 2.2, + "y": 1 + } + ] + } + ], + "activeStratum": "Cb Stream Types" + } + ] + }, + { + "functionId": "channel-evolution", + "functionName": "Channel evolution", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "channel-evolution-width-depth-ratio-state", + "metricName": "Width/Depth Ratio State", + "discipline": "Geomorphology", + "inputType": "field (survey)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Width/Depth Ratio State", + "metricStatement": "Channel dimension indicator used to infer incision/widening or departure from reference geometry.", + "howToMeasure": "Measure bankfull width and mean depth at representative cross sections; compute W/D and compare to expected (regional curves or SQT reference).", + "methodContext": "Context: Channel\n\nMethod: Field (survey)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 0.2, + "y": 0 + }, + { + "x": 1, + "y": 1 + } + ] + } + } + ] + }, + { + "functionId": "channel-floodplain-dynamics", + "functionName": "Channel and floodplain dynamics", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "channel-and-floodplain-dynamics-bank-height-ratio-bhr", + "metricName": "Bank Height Ratio (BHR)", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "Bank Height Ratio (BHR)", + "metricStatement": "Bank stability/erosion and protection condition influencing channel change, sediment delivery, and habitat structure.", + "howToMeasure": "Map eroding and armored bank length, measure bank height and bankfull stage where needed, and/or score greenline stability per SQT protocol; compute percent lengths or ratios.", + "methodContext": "Context: Channel/Riparian\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 1, + "y": 1 + }, + { + "x": 1.5, + "y": 0.3 + } + ] + } + }, + { + "metricId": "channel-and-floodplain-dynamics-greenline-stability-rating", + "metricName": "Greenline Stability Rating", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "Greenline Stability Rating", + "metricStatement": "Bank stability/erosion and protection condition influencing channel change, sediment delivery, and habitat structure.", + "howToMeasure": "Map eroding and armored bank length, measure bank height and bankfull stage where needed, and/or score greenline stability per SQT protocol; compute percent lengths or ratios.", + "methodContext": "Context: Channel/Riparian\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 2, + "y": 0 + }, + { + "x": 5, + "y": 0.3 + }, + { + "x": 7, + "y": 0.7 + }, + { + "x": 9, + "y": 1 + } + ] + } + }, + { + "metricId": "channel-and-floodplain-dynamics-percent-side-channels", + "metricName": "Percent Side Channels", + "discipline": "Geomorphology", + "inputType": "see state sqt protocol", + "sourceCitation": "Wyoming SQT", + "xLabel": "Percent Side Channels", + "metricStatement": "Metric definition and measurement are state SQT-specific.", + "howToMeasure": "Follow the state SQT metric definition and apply the scoring breakpoints for the appropriate stratum.", + "methodContext": "Context: Varies\n\nMethod: See state SQT protocol", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - Unconfined Alluvial", + "stratification": "Unconfined Alluvial", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 10, + "y": 0.3 + }, + { + "x": 50, + "y": 0.7 + }, + { + "x": 100, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Unconfined Alluvial", + "layerName": "Wyoming SQT - Unconfined Alluvial", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 10, + "y": 0.3 + }, + { + "x": 50, + "y": 0.7 + }, + { + "x": 100, + "y": 1 + } + ] + }, + { + "stratum": "Confined Alluvial", + "layerName": "Wyoming SQT - Confined Alluvial", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 5, + "y": 0.3 + }, + { + "x": 25, + "y": 0.7 + }, + { + "x": 50, + "y": 1 + } + ] + } + ], + "activeStratum": "Unconfined Alluvial" + }, + { + "metricId": "channel-and-floodplain-dynamics-percent-streambank-armoring", + "metricName": "Percent Streambank Armoring", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "Percent Streambank Armoring", + "metricStatement": "Bank stability/erosion and protection condition influencing channel change, sediment delivery, and habitat structure.", + "howToMeasure": "Map eroding and armored bank length, measure bank height and bankfull stage where needed, and/or score greenline stability per SQT protocol; compute percent lengths or ratios.", + "methodContext": "Context: Channel/Riparian\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 0, + "y": 1 + }, + { + "x": 30, + "y": 0 + } + ] + } + }, + { + "metricId": "channel-and-floodplain-dynamics-percent-streambank-erosion", + "metricName": "Percent Streambank Erosion", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "Percent Streambank Erosion", + "metricStatement": "Bank stability/erosion and protection condition influencing channel change, sediment delivery, and habitat structure.", + "howToMeasure": "Map eroding and armored bank length, measure bank height and bankfull stage where needed, and/or score greenline stability per SQT protocol; compute percent lengths or ratios.", + "methodContext": "Context: Channel/Riparian\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 5, + "y": 1 + }, + { + "x": 10, + "y": 0.7 + }, + { + "x": 75, + "y": 0 + } + ] + } + } + ] + }, + { + "functionId": "bed-composition-bedform-dynamics", + "functionName": "Bed composition and large wood", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "bed-composition-and-large-wood-percent-fines-2mm", + "metricName": "Percent Fines < 2mm", + "discipline": "Geomorphology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "Percent Fines < 2mm", + "metricStatement": "Streambed substrate size distribution used to infer habitat quality, sediment transport, and embeddedness/fine sediment stress.", + "howToMeasure": "Conduct pebble count or substrate characterization per SQT method; compute percent fines or D50 and apply scoring thresholds (stratified by bed type where needed).", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 5, + "y": 1 + }, + { + "x": 15, + "y": 0.7 + }, + { + "x": 50, + "y": 0 + } + ] + } + } + ] + }, + { + "functionId": "light-thermal-regime", + "functionName": "Light & thermal regime", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "light-and-thermal-regime-maximum-weekly-average-temperature-mwat", + "metricName": "Maximum Weekly Average Temperature (MWAT)", + "discipline": "Physicochemistry", + "inputType": "field (logger) and/or desktop (data compilation)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Maximum Weekly Average Temperature (MWAT)", + "metricStatement": "Thermal condition (maximum or weekly average temperature) used to assess heat stress risk and habitat suitability.", + "howToMeasure": "Deploy temperature logger (or compile existing records) over summer season; compute statistic (daily max, MWAT, July mean) and score against stratified thresholds.", + "methodContext": "Context: Channel\n\nMethod: Field (logger) and/or Desktop (data compilation)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - Tier I (Cold)", + "stratification": "Tier I (Cold)", + "points": [ + { + "x": 15.4, + "y": 0.7 + }, + { + "x": 18.1, + "y": 0.3 + } + ] + }, + "curveLayers": [ + { + "stratum": "Tier I (Cold)", + "layerName": "Wyoming SQT - Tier I (Cold)", + "points": [ + { + "x": 15.4, + "y": 0.7 + }, + { + "x": 18.1, + "y": 0.3 + } + ] + }, + { + "stratum": "Tier II (Cold-Cool)", + "layerName": "Wyoming SQT - Tier II (Cold-Cool)", + "points": [ + { + "x": 17.7, + "y": 0.7 + }, + { + "x": 19.3, + "y": 0.3 + } + ] + }, + { + "stratum": "Tier III (Cool)", + "layerName": "Wyoming SQT - Tier III (Cool)", + "points": [ + { + "x": 19.9, + "y": 0.7 + }, + { + "x": 22, + "y": 0.3 + } + ] + }, + { + "stratum": "Tier IV (Cool-Warm)", + "layerName": "Wyoming SQT - Tier IV (Cool-Warm)", + "points": [ + { + "x": 24.4, + "y": 0.7 + }, + { + "x": 26, + "y": 0.3 + } + ] + }, + { + "stratum": "Tier V (Warm)", + "layerName": "Wyoming SQT - Tier V (Warm)", + "points": [ + { + "x": 27.3, + "y": 0.7 + }, + { + "x": 29, + "y": 0.3 + } + ] + } + ], + "activeStratum": "Tier I (Cold)" + } + ] + }, + { + "functionId": "carbon-processing", + "functionName": "Carbon processing", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "carbon-processing-chlorophyll", + "metricName": "Chlorophyll ?", + "discipline": "Physicochemistry", + "inputType": "field (sampling/assay)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Chlorophyll ?", + "metricStatement": "Indicator of primary production or detrital processing that supports food webs and stream metabolism.", + "howToMeasure": "Collect periphyton/algal samples (or estimate biomass) and compute chlorophyll-a or biomass metric; apply SQT thresholds by biotype.", + "methodContext": "Context: Channel\n\nMethod: Field (sampling/assay)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - Basins and Plains", + "stratification": "Basins and Plains", + "points": [ + { + "x": 16, + "y": 1 + }, + { + "x": 29, + "y": 0.7 + }, + { + "x": 117, + "y": 0.3 + }, + { + "x": 150, + "y": 0 + } + ] + }, + "curveLayers": [ + { + "stratum": "Basins and Plains", + "layerName": "Wyoming SQT - Basins and Plains", + "points": [ + { + "x": 16, + "y": 1 + }, + { + "x": 29, + "y": 0.7 + }, + { + "x": 117, + "y": 0.3 + }, + { + "x": 150, + "y": 0 + } + ] + }, + { + "stratum": "Mountains", + "layerName": "Wyoming SQT - Mountains", + "points": [ + { + "x": 12, + "y": 1 + }, + { + "x": 26.75, + "y": 0.7 + }, + { + "x": 53, + "y": 0.3 + } + ] + } + ], + "activeStratum": "Basins and Plains" + }, + { + "metricId": "carbon-processing-herbaceous-vegetation-cover", + "metricName": "Herbaceous Vegetation Cover", + "discipline": "Physicochemistry", + "inputType": "field and/or desktop (imagery/gis)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Herbaceous Vegetation Cover", + "metricStatement": "Riparian vegetation condition and composition influencing organic matter inputs, bank stability, and habitat quality.", + "howToMeasure": "Measure riparian corridor attributes (extent, cover, composition, stem density, basal area) per SQT guidance and apply stratified thresholds (valley type/region).", + "methodContext": "Context: Riparian/Floodplain\n\nMethod: Field and/or Desktop (imagery/GIS)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 35, + "y": 0 + }, + { + "x": 74, + "y": 0.7 + }, + { + "x": 119, + "y": 1 + } + ] + } + }, + { + "metricId": "carbon-processing-percent-native-cover", + "metricName": "Percent Native Cover", + "discipline": "Physicochemistry", + "inputType": "field and/or desktop (imagery/gis)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Percent Native Cover", + "metricStatement": "Riparian vegetation condition and composition influencing organic matter inputs, bank stability, and habitat quality.", + "howToMeasure": "Measure riparian corridor attributes (extent, cover, composition, stem density, basal area) per SQT guidance and apply stratified thresholds (valley type/region).", + "methodContext": "Context: Riparian/Floodplain\n\nMethod: Field and/or Desktop (imagery/GIS)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 65, + "y": 0.3 + }, + { + "x": 91, + "y": 0.69 + }, + { + "x": 100, + "y": 1 + } + ] + } + }, + { + "metricId": "carbon-processing-riparian-extent", + "metricName": "Riparian Extent", + "discipline": "Physicochemistry", + "inputType": "field and/or desktop (imagery/gis)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Riparian Extent", + "metricStatement": "Riparian vegetation condition and composition influencing organic matter inputs, bank stability, and habitat quality.", + "howToMeasure": "Measure riparian corridor attributes (extent, cover, composition, stem density, basal area) per SQT guidance and apply stratified thresholds (valley type/region).", + "methodContext": "Context: Riparian/Floodplain\n\nMethod: Field and/or Desktop (imagery/GIS)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - Unconfined Alluvial Valleys", + "stratification": "Unconfined Alluvial Valleys", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 30, + "y": 0.3 + }, + { + "x": 100, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Unconfined Alluvial Valleys", + "layerName": "Wyoming SQT - Unconfined Alluvial Valleys", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 30, + "y": 0.3 + }, + { + "x": 100, + "y": 1 + } + ] + }, + { + "stratum": "Confined Alluvial, Colluvial/V-Shaped, or Bedrock Valleys", + "layerName": "Wyoming SQT - Confined Alluvial, Colluvial/V-Shaped, or Bedrock Valleys", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 60, + "y": 0.3 + }, + { + "x": 100, + "y": 1 + } + ] + } + ], + "activeStratum": "Unconfined Alluvial Valleys" + }, + { + "metricId": "carbon-processing-woody-vegetation-cover", + "metricName": "Woody Vegetation Cover", + "discipline": "Physicochemistry", + "inputType": "field and/or desktop (imagery/gis)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Woody Vegetation Cover", + "metricStatement": "Riparian vegetation condition and composition influencing organic matter inputs, bank stability, and habitat quality.", + "howToMeasure": "Measure riparian corridor attributes (extent, cover, composition, stem density, basal area) per SQT guidance and apply stratified thresholds (valley type/region).", + "methodContext": "Context: Riparian/Floodplain\n\nMethod: Field and/or Desktop (imagery/GIS)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - Mountains and Basins", + "stratification": "Mountains and Basins", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 69, + "y": 0.7 + }, + { + "x": 122, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Mountains and Basins", + "layerName": "Wyoming SQT - Mountains and Basins", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 69, + "y": 0.7 + }, + { + "x": 122, + "y": 1 + } + ] + }, + { + "stratum": "Plains", + "layerName": "Wyoming SQT - Plains", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 76, + "y": 1 + }, + { + "x": 101, + "y": 0.29 + } + ] + } + ], + "activeStratum": "Mountains and Basins" + } + ] + }, + { + "functionId": "habitat-provision", + "functionName": "Habitat provision", + "discipline": "Biology", + "metrics": [ + { + "metricId": "habitat-provision-lwd-index", + "metricName": "LWD Index", + "discipline": "Biology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "LWD Index", + "metricStatement": "In-stream habitat structure metric (pools/riffles/wood) indicating habitat diversity and cover for aquatic organisms.", + "howToMeasure": "Walk a representative reach and count large woody debris pieces/jams per unit length (e.g., per 100 m) following SQT definitions.", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 430, + "y": 0.7 + }, + { + "x": 660, + "y": 1 + } + ] + } + }, + { + "metricId": "habitat-provision-lwd-piece-count", + "metricName": "LWD Piece Count", + "discipline": "Biology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "LWD Piece Count", + "metricStatement": "In-stream habitat structure metric (pools/riffles/wood) indicating habitat diversity and cover for aquatic organisms.", + "howToMeasure": "Walk a representative reach and count large woody debris pieces/jams per unit length (e.g., per 100 m) following SQT definitions.", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 13, + "y": 0.7 + }, + { + "x": 28, + "y": 1 + } + ] + } + }, + { + "metricId": "habitat-provision-percent-riffle", + "metricName": "Percent Riffle", + "discipline": "Biology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "Percent Riffle", + "metricStatement": "In-stream habitat structure metric (pools/riffles/wood) indicating habitat diversity and cover for aquatic organisms.", + "howToMeasure": "Map riffle and pool units along the reach; compute ratios (pool spacing or pool depth ratio) or percent riffle by length following SQT definitions.", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - Streams < 3% slope", + "stratification": "Streams < 3% slope", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 60, + "y": 0.7 + }, + { + "x": 68, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Streams < 3% slope", + "layerName": "Wyoming SQT - Streams < 3% slope", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 60, + "y": 0.7 + }, + { + "x": 68, + "y": 1 + } + ] + }, + { + "stratum": "Streams < 3% slope / Overall", + "layerName": "Wyoming SQT - Streams < 3% slope / Overall", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 39, + "y": 0.7 + }, + { + "x": 50, + "y": 1 + } + ] + }, + { + "stratum": "Volcanics Mountains and Valleys Bioregion", + "layerName": "Wyoming SQT - Volcanics Mountains and Valleys Bioregion", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 76, + "y": 0.7 + }, + { + "x": 80, + "y": 1 + } + ] + } + ], + "activeStratum": "Streams < 3% slope" + }, + { + "metricId": "habitat-provision-pool-depth-ratio", + "metricName": "Pool Depth Ratio", + "discipline": "Biology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "Pool Depth Ratio", + "metricStatement": "In-stream habitat structure metric (pools/riffles/wood) indicating habitat diversity and cover for aquatic organisms.", + "howToMeasure": "Map riffle and pool units along the reach; compute ratios (pool spacing or pool depth ratio) or percent riffle by length following SQT definitions.", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 1, + "y": 0 + }, + { + "x": 2.2, + "y": 0.7 + }, + { + "x": 3.2, + "y": 1 + } + ] + } + }, + { + "metricId": "habitat-provision-pool-spacing-ratio", + "metricName": "Pool Spacing Ratio", + "discipline": "Biology", + "inputType": "field", + "sourceCitation": "Wyoming SQT", + "xLabel": "Pool Spacing Ratio", + "metricStatement": "In-stream habitat structure metric (pools/riffles/wood) indicating habitat diversity and cover for aquatic organisms.", + "howToMeasure": "Map riffle and pool units along the reach; compute ratios (pool spacing or pool depth ratio) or percent riffle by length following SQT definitions.", + "methodContext": "Context: Channel\n\nMethod: Field", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - B and Ba Stream Types", + "stratification": "B and Ba Stream Types", + "points": [ + { + "x": 3, + "y": 1 + }, + { + "x": 4, + "y": 0.7 + }, + { + "x": 7.5, + "y": 0 + } + ] + }, + "curveLayers": [ + { + "stratum": "B and Ba Stream Types", + "layerName": "Wyoming SQT - B and Ba Stream Types", + "points": [ + { + "x": 3, + "y": 1 + }, + { + "x": 4, + "y": 0.7 + }, + { + "x": 7.5, + "y": 0 + } + ] + }, + { + "stratum": "Bc Stream Types", + "layerName": "Wyoming SQT - Bc Stream Types", + "points": [ + { + "x": 3.4, + "y": 1 + }, + { + "x": 6, + "y": 0.7 + } + ] + }, + { + "stratum": "C Stream Types", + "layerName": "Wyoming SQT - C Stream Types", + "points": [ + { + "x": 3, + "y": 0 + }, + { + "x": 3.7, + "y": 0.7 + }, + { + "x": 4, + "y": 1 + } + ] + }, + { + "stratum": "Cb Stream Types", + "layerName": "Wyoming SQT - Cb Stream Types", + "points": [ + { + "x": 3, + "y": 0.7 + }, + { + "x": 3.7, + "y": 1 + } + ] + }, + { + "stratum": "E Stream Types", + "layerName": "Wyoming SQT - E Stream Types", + "points": [ + { + "x": 1.833333333, + "y": 0 + }, + { + "x": 3, + "y": 0.7 + }, + { + "x": 3.5, + "y": 1 + } + ] + } + ], + "activeStratum": "B and Ba Stream Types" + } + ] + }, + { + "functionId": "population-support", + "functionName": "Population support", + "discipline": "Biology", + "metrics": [ + { + "metricId": "population-support-game-species-biomass", + "metricName": "Game Species Biomass", + "discipline": "Biology", + "inputType": "field (fish survey)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Game Species Biomass", + "metricStatement": "Population abundance/biomass indicator reflecting recruitment and survival of target game/native species.", + "howToMeasure": "Estimate density/biomass (or % change from baseline) per SQT method and score using the appropriate tier/ribbon class thresholds.", + "methodContext": "Context: Channel\n\nMethod: Field (fish survey)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT - Blue Ribbon and non-trout game fish", + "stratification": "Blue Ribbon and non-trout game fish", + "points": [ + { + "x": 5, + "y": 0.3 + }, + { + "x": 25, + "y": 0.7 + }, + { + "x": 40, + "y": 1 + } + ] + }, + "curveLayers": [ + { + "stratum": "Blue Ribbon and non-trout game fish", + "layerName": "Wyoming SQT - Blue Ribbon and non-trout game fish", + "points": [ + { + "x": 5, + "y": 0.3 + }, + { + "x": 25, + "y": 0.7 + }, + { + "x": 40, + "y": 1 + } + ] + }, + { + "stratum": "Red Ribbon", + "layerName": "Wyoming SQT - Red Ribbon", + "points": [ + { + "x": 10, + "y": 0.3 + }, + { + "x": 50, + "y": 0.7 + }, + { + "x": 80, + "y": 1 + } + ] + }, + { + "stratum": "Yellow/Green Ribbon", + "layerName": "Wyoming SQT - Yellow/Green Ribbon", + "points": [ + { + "x": 15, + "y": 0.3 + }, + { + "x": 75, + "y": 0.7 + }, + { + "x": 119, + "y": 1 + } + ] + } + ], + "activeStratum": "Blue Ribbon and non-trout game fish" + } + ] + }, + { + "functionId": "community-dynamics", + "functionName": "Community dynamics", + "discipline": "Biology", + "metrics": [ + { + "metricId": "community-dynamics-native-fish-species-richness", + "metricName": "Native Fish Species Richness", + "discipline": "Biology", + "inputType": "field (fish survey) and/or desktop (existing data)", + "sourceCitation": "Wyoming SQT", + "xLabel": "Native Fish Species Richness", + "metricStatement": "Community composition indicator reflecting native diversity and assemblage balance relative to expectation.", + "howToMeasure": "Survey fish community, compute richness (% of expected where defined) or abundance/biomass composition metrics, and score against SQT thresholds.", + "methodContext": "Context: Channel\n\nMethod: Field (fish survey) and/or Desktop (existing data)", + "assignmentOrigin": "", + "curve": { + "layerName": "Wyoming SQT", + "stratification": "", + "points": [ + { + "x": 0, + "y": 0 + }, + { + "x": 80, + "y": 0.69 + }, + { + "x": 100, + "y": 1 + } + ] + } + } + ] + } + ], + "region": { + "kind": "state", + "code": "WY", + "name": "Wyoming", + "polygon": { + "type": "Polygon", + "coordinates": [ + [ + [ + -109.0808, + 45.0021 + ], + [ + -105.9152, + 45.0021 + ], + [ + -104.0585, + 44.9966 + ], + [ + -104.053, + 43.003 + ], + [ + -104.053, + 41.0039 + ], + [ + -105.7289, + 40.9984 + ], + [ + -107.9197, + 41.0039 + ], + [ + -109.048, + 40.9984 + ], + [ + -111.0471, + 40.9984 + ], + [ + -111.0471, + 42.0007 + ], + [ + -111.0471, + 44.4763 + ], + [ + -111.0525, + 45.0021 + ], + [ + -109.0808, + 45.0021 + ] + ] + ] + } + }, + "contentDigest": "sha256:9d2260e43f0e3c57f3cb2a54819e36313a9012baf68a5e82bcba84cdae03615d", + "functionCoverage": { + "framework": "staf-20", + "total": 20, + "covered": 13, + "excluded": 7, + "missing": 0, + "coveredFunctionIds": [ + "catchment-hydrology", + "reach-inflow", + "streamflow-regime", + "low-flow-baseflow-dynamics", + "floodplain-connectivity", + "channel-evolution", + "channel-floodplain-dynamics", + "bed-composition-bedform-dynamics", + "light-thermal-regime", + "carbon-processing", + "habitat-provision", + "population-support", + "community-dynamics" + ], + "missingFunctionIds": [], + "exclusions": [ + { + "functionId": "surface-water-storage", + "functionName": "Surface water storage", + "discipline": "Hydrology", + "reason": "deferred-to-other-tier", + "justification": "The Wyoming Stream Quantification Tool addresses this function only with a screening-tier metric (Impoundments / Dams / Ponds), which has no curve. This assessment transcribes the tool's curves, so the function is left to the screening tier.", + "recordedBy": "GM", + "recordedAt": "2026-09-24" + }, + { + "functionId": "high-flow-dynamics", + "functionName": "High flow dynamics", + "discipline": "Hydraulics", + "reason": "no-suitable-metric", + "justification": "The Wyoming Stream Quantification Tool publishes no curve for this function, and this assessment transcribes that tool's curves as published.", + "recordedBy": "GM", + "recordedAt": "2026-09-24" + }, + { + "functionId": "hyporheic-connectivity", + "functionName": "Hyporheic connectivity", + "discipline": "Hydraulics", + "reason": "no-suitable-metric", + "justification": "The Wyoming Stream Quantification Tool publishes no curve for this function, and this assessment transcribes that tool's curves as published.", + "recordedBy": "GM", + "recordedAt": "2026-09-24" + }, + { + "functionId": "sediment-continuity", + "functionName": "Sediment continuity", + "discipline": "Geomorphology", + "reason": "deferred-to-other-tier", + "justification": "The Wyoming Stream Quantification Tool addresses this function only with a screening-tier metric (Sediment Supply Potential (watershed/banks)), which has no curve. This assessment transcribes the tool's curves, so the function is left to the screening tier.", + "recordedBy": "GM", + "recordedAt": "2026-09-24" + }, + { + "functionId": "nutrient-cycling", + "functionName": "Nutrient cycling", + "discipline": "Physicochemistry", + "reason": "no-suitable-metric", + "justification": "The Wyoming Stream Quantification Tool publishes no curve for this function, and this assessment transcribes that tool's curves as published.", + "recordedBy": "GM", + "recordedAt": "2026-09-24" + }, + { + "functionId": "water-soil-quality", + "functionName": "Water & soil quality", + "discipline": "Physicochemistry", + "reason": "deferred-to-other-tier", + "justification": "The Wyoming Stream Quantification Tool addresses this function only with a screening-tier metric (Regulatory Impairment Status (305b/303d/TMDL)), which has no curve. This assessment transcribes the tool's curves, so the function is left to the screening tier.", + "recordedBy": "GM", + "recordedAt": "2026-09-24" + }, + { + "functionId": "watershed-connectivity", + "functionName": "Watershed connectivity", + "discipline": "Biology", + "reason": "deferred-to-other-tier", + "justification": "The Wyoming Stream Quantification Tool addresses this function only with a screening-tier metric (Adjacent Reach Condition for Recruitment (hardened/embedded); Fish Passage & Barrier Effects (longitudinal connectivity)), which has no curve. This assessment transcribes the tool's curves, so the function is left to the screening tier.", + "recordedBy": "GM", + "recordedAt": "2026-09-24" + } + ] + }, + "library": { + "libraryId": "wy-sqt-adapted", + "version": 2, + "updatedAt": "2026-09-24T15:33:35Z", + "author": "GM", + "revisionNotes": "The complete StreamCurves session for the state SQT transcribed in v1: every curve and stratum carried as the tool publishes it (State SQT), the function mapping, the documented gaps and the approved metric sets. Scores exactly as v1; known defects and open ends are stated as caveats.", + "region": { + "kind": "state", + "code": "WY", + "name": "Wyoming" + }, + "contentDigest": "sha256:9d2260e43f0e3c57f3cb2a54819e36313a9012baf68a5e82bcba84cdae03615d", + "supersedesVersion": 1 + } +} diff --git a/library/wyoming-basin-v1-25fb3a03.deep.25fb3a03f25a.json b/library/wyoming-basin-v1-25fb3a03.deep.25fb3a03f25a.json new file mode 100644 index 0000000000000000000000000000000000000000..0cf7287a8a3066066af4d748b2fc299645f5a01c --- /dev/null +++ b/library/wyoming-basin-v1-25fb3a03.deep.25fb3a03f25a.json @@ -0,0 +1,6314 @@ +{ + "schemaVersion": 1, + "tier": "detailed", + "assessmentId": "wyoming-basin", + "assessmentName": "Wyoming Basin reference assessment", + "stateCode": "", + "stateName": "", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "applicability": "Wyoming Basin", + "metricsByFunction": [ + { + "functionId": "catchment-hydrology", + "functionName": "Catchment hydrology", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-pctimp2019ws", + "metricName": "Impervious surface", + "inputType": "proportion", + "sourceCitation": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "xLabel": "Impervious surface (%)", + "howToMeasure": "Impervious surface (%) is scored on the same fixed criteria EASI uses in every region. Good <10%, Fair 10-25%, Poor >25%.", + "methodContext": "Percent of the watershed in impervious surface. DEEP computes it for the delineated watershed. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 10.0, + "y": 0.69 + }, + { + "x": 25.005, + "y": 0.39 + }, + { + "x": 44.5115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Catchment hydrology (land-cover pressure)", + "easiMethod": "catchment-land-cover-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<10%" + }, + { + "rating": "Fair", + "label": "10-25%" + }, + { + "rating": "Poor", + "label": ">25%" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "schueler-1994", + "text": "Schueler 1994, The importance of imperviousness" + }, + { + "key": "allan-2004", + "text": "Allan 2004, Landscapes and riverscapes: the influence of land use on stream ecosystems" + }, + { + "key": "wang-1997", + "text": "Wang et al. 1997, Influences of watershed land use on habitat quality and biotic integrity in Wisconsin streams" + }, + { + "key": "king-2011", + "text": "King et al. 2011, Stream community thresholds at exceptionally low levels of catchment urbanization" + } + ], + "limitations": [ + "The worse input governs because hydrologic alteration through one pathway is not offset by low pressure in the other.", + "Agricultural bands are national screening tiers, not ecological criteria.", + "A result computed from one input is labeled partial.", + "Sensitive macroinvertebrate taxa decline well below the 10 percent impervious Good boundary (community thresholds near 0.5 to 2 percent), so a Good rating is not a no-effect finding (King et al. 2011)." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + }, + { + "metricId": "spring-pctag2019ws", + "metricName": "Agriculture, crop and hay", + "inputType": "proportion", + "sourceCitation": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "xLabel": "Agriculture, crop and hay (%)", + "howToMeasure": "Agriculture, crop and hay (%) is scored on the same fixed criteria EASI uses in every region. Good <30%, Fair 30-50%, Poor >50%.", + "methodContext": "Percent of the watershed in cultivated crops plus hay and pasture. DEEP computes it for the delineated watershed. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 30.0, + "y": 0.69 + }, + { + "x": 50.005, + "y": 0.39 + }, + { + "x": 76.0115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Catchment hydrology (land-cover pressure)", + "easiMethod": "catchment-land-cover-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<30%" + }, + { + "rating": "Fair", + "label": "30-50%" + }, + { + "rating": "Poor", + "label": ">50%" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "schueler-1994", + "text": "Schueler 1994, The importance of imperviousness" + }, + { + "key": "allan-2004", + "text": "Allan 2004, Landscapes and riverscapes: the influence of land use on stream ecosystems" + }, + { + "key": "wang-1997", + "text": "Wang et al. 1997, Influences of watershed land use on habitat quality and biotic integrity in Wisconsin streams" + }, + { + "key": "king-2011", + "text": "King et al. 2011, Stream community thresholds at exceptionally low levels of catchment urbanization" + } + ], + "limitations": [ + "The worse input governs because hydrologic alteration through one pathway is not offset by low pressure in the other.", + "Agricultural bands are national screening tiers, not ecological criteria.", + "A result computed from one input is labeled partial.", + "Sensitive macroinvertebrate taxa decline well below the 10 percent impervious Good boundary (community thresholds near 0.5 to 2 percent), so a Good rating is not a no-effect finding (King et al. 2011)." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "surface-water-storage", + "functionName": "Surface water storage", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-pctwet2019ws", + "metricName": "Wetland", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Wetland (%)", + "howToMeasure": "Watershed wetland (%), woody plus herbaceous, both classes required; wetlands store surface water and attenuate flow peaks. EASI scores Surface water storage on the same sum (method watershed-wetland-extent).", + "methodContext": "Percent of the watershed in woody plus herbaceous wetland (NLCD 2019). DEEP reads it from EPA StreamCat for the reach. Nothing is measured in the field.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.45000000000000007, + "y": 0.3 + }, + { + "x": 1.05, + "y": 0.7 + }, + { + "x": 3.59, + "y": 1.0 + }, + { + "x": 4.859999999999999, + "y": 1.0 + } + ] + }, + "referenceN": 21, + "sampleDisposition": "adequate", + "metricRole": "landscape_expectation", + "curveCaveats": [ + "Wetland cover follows terrain: a steep watershed that never held wetland reads low on this curve without being degraded.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.57 of evaluation regions; two thirds required); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.12, + 9.58 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local_relaxed", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 21, + "nComparable": 21, + "nUsable": 21, + "nLocal": 21, + "nHuc12": 21, + "disposition": "adequate", + "family": "hydrology", + "covariates": [ + "hydrlcondws", + "precip8110ws", + "lith_group" + ], + "selfCoverage": 0.842, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "21 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) of this ecoregion. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.57 of 7 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.01, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l3", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5714, + "net_opt": 0.0069, + "n_cells": 7, + "c1_share": 0.2857 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 1.05, + "q50": 1.39, + "q75": 3.59 + }, + "discrimination": { + "aucRefVsPressure": 0.604, + "nRef": 21, + "nPressure": 13, + "medianRefIndex": 0.745, + "medianPressureIndex": 0.687, + "aucRvsIm": null, + "nR": 5, + "nIm": 3, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l3", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5714, + "net_opt": 0.0069, + "n_cells": 7, + "c1_share": 0.2857 + }, + "transferNote": "21 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) of this ecoregion. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.57 of 7 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.01, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydrology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "reach-inflow", + "functionName": "Reach inflow", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-rddensws", + "metricName": "Road density", + "inputType": "continuous", + "sourceCitation": "EASI fixed criteria, Road-density proxy for concentrated inflow pressure", + "xLabel": "Road density (km/sq km)", + "howToMeasure": "Road density (km/sq km) is scored on the same fixed criteria EASI uses in every region. Good <1 km/km², Fair 1-<3 km/km², Poor ≥3 km/km².", + "methodContext": "Road length per square kilometer of watershed. DEEP computes it for the delineated watershed. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Road-density proxy for concentrated inflow pressure", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 1.0, + "y": 0.69 + }, + { + "x": 3.0, + "y": 0.39 + }, + { + "x": 5.6, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Road-density proxy for concentrated inflow pressure", + "easiMethod": "road-density-inflow-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<1 km/km²" + }, + { + "rating": "Fair", + "label": "1-<3 km/km²" + }, + { + "rating": "Poor", + "label": "≥3 km/km²" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "usfs-wcf", + "text": "USDA Forest Service 2011, Watershed Condition Classification Technical Guide (FS-978)" + } + ], + "limitations": [ + "Road density does not count actual outfalls or establish whether runoff is treated.", + "The 1 km/km² breakpoint is a screening judgment.", + "USFS watershed-condition guidance classes road density more strictly (good under 1, impaired over 2.4 miles per square mile, about 0.62 and 1.49 km/km²), derived from salmonid watersheds. EASI keeps the NRSA-anchored national screen and discloses the stricter alternative." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "streamflow-regime", + "functionName": "Streamflow regime", + "discipline": "Hydrology", + "metrics": [ + { + "metricId": "spring-bfiws", + "metricName": "Base flow index", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Base flow index (%)", + "howToMeasure": "Base-flow index (% of streamflow from baseflow); a higher baseflow share indicates a more stable, groundwater-supported flow regime. Moderate confidence: hydrogeology sets the baseline, so a naturally flashy till catchment reads low without being degraded (see the natural-context criterion below). Scored because flow alteration and withdrawal also move it.", + "methodContext": "Base flow index of the watershed, the percent of streamflow that comes from base flow (USGS base flow index grid). DEEP reads it from EPA StreamCat for the reach. Nothing is measured in the field.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 25.749514285714287, + "y": 0.3 + }, + { + "x": 60.0822, + "y": 0.7 + }, + { + "x": 67.7701, + "y": 1.0 + }, + { + "x": 71.61404999999999, + "y": 1.0 + } + ] + }, + "referenceN": 13, + "sampleDisposition": "exploratory", + "metricRole": "landscape_expectation", + "curveCaveats": [ + "Built from 13 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error.", + "Base-flow index is set largely by hydrogeology: a naturally flashy till catchment reads low on this curve without being degraded." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 51.9342, + 74.051 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 13, + "nComparable": 13, + "nUsable": 13, + "nLocal": 13, + "nHuc12": 13, + "disposition": "exploratory", + "family": "hydrology", + "covariates": [ + "hydrlcondws", + "precip8110ws", + "lith_group" + ], + "selfCoverage": 0.842, + "supportedLevel": "l3", + "transferRisk": "none", + "transferNote": "", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 60.2916, + "q50": 63.9715, + "q75": 67.7701 + }, + "discrimination": { + "aucRefVsPressure": 0.728, + "nRef": 13, + "nPressure": 13, + "medianRefIndex": 0.741, + "medianPressureIndex": 0.654, + "aucRvsIm": null, + "nR": 5, + "nIm": 3, + "verdict": "discriminates" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Hydrology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-dorws", + "metricName": "Degree of regulation", + "inputType": "continuous", + "sourceCitation": "EASI fixed criteria, Flow alteration (degree of regulation)", + "xLabel": "Degree of regulation (%)", + "howToMeasure": "Degree of regulation (%) is scored on the same fixed criteria EASI uses in every region. Good <2%, Fair 2-15%, Poor >15%.", + "methodContext": "Degree of regulation, the normal storage of upstream dams as a percent of mean annual runoff. DEEP reads both from EPA StreamCat for the reach. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Flow alteration (degree of regulation)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 2.0, + "y": 0.69 + }, + { + "x": 15.005, + "y": 0.39 + }, + { + "x": 31.9115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Flow alteration (degree of regulation)", + "easiMethod": "degree-of-regulation", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "<2%" + }, + { + "rating": "Fair", + "label": "2-15%" + }, + { + "rating": "Poor", + "label": ">15%" + } + ], + "citations": [ + { + "key": "streamcat", + "text": "EPA StreamCat Metrics and Definitions" + }, + { + "key": "lehner-2011", + "text": "Lehner et al. 2011, High-resolution mapping of the world's reservoirs and dams" + }, + { + "key": "grill-2019", + "text": "Grill et al. 2019, Mapping the world's free-flowing rivers" + } + ], + "limitations": [ + "Degree of regulation does not describe operating rules, diversions, seasonality, or dam location on the network.", + "Missing or non-positive runoff is not converted to zero and leaves the metric unscored." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydrology", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "low-flow-baseflow-dynamics", + "functionName": "Low flow and baseflow dynamics", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-bfiws", + "metricName": "Base flow index", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Base flow index (%)", + "howToMeasure": "Base-flow index (% of streamflow from baseflow); a higher baseflow share indicates a more stable, groundwater-supported flow regime. Moderate confidence: hydrogeology sets the baseline, so a naturally flashy till catchment reads low without being degraded (see the natural-context criterion below). Scored because flow alteration and withdrawal also move it.", + "methodContext": "Base flow index of the watershed, the percent of streamflow that comes from base flow (USGS base flow index grid). DEEP reads it from EPA StreamCat for the reach. Nothing is measured in the field.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 25.749514285714287, + "y": 0.3 + }, + { + "x": 60.0822, + "y": 0.7 + }, + { + "x": 67.7701, + "y": 1.0 + }, + { + "x": 71.61404999999999, + "y": 1.0 + } + ] + }, + "referenceN": 13, + "sampleDisposition": "exploratory", + "metricRole": "landscape_expectation", + "curveCaveats": [ + "Built from 13 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error.", + "Base-flow index is set largely by hydrogeology: a naturally flashy till catchment reads low on this curve without being degraded." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 51.9342, + 74.051 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 13, + "nComparable": 13, + "nUsable": 13, + "nLocal": 13, + "nHuc12": 13, + "disposition": "exploratory", + "family": "hydrology", + "covariates": [ + "hydrlcondws", + "precip8110ws", + "lith_group" + ], + "selfCoverage": 0.842, + "supportedLevel": "l3", + "transferRisk": "none", + "transferNote": "", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 60.2916, + "q50": 63.9715, + "q75": 67.7701 + }, + "discrimination": { + "aucRefVsPressure": 0.728, + "nRef": 13, + "nPressure": 13, + "medianRefIndex": 0.741, + "medianPressureIndex": 0.654, + "aucRvsIm": null, + "nR": 5, + "nIm": 3, + "verdict": "discriminates" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Hydraulics", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-bfwd-rat", + "metricName": "Bankfull width:depth ratio", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull width:depth ratio", + "howToMeasure": "Bankfull width-to-depth ratio; both over-widened (very high) and incised (very low) degrade condition. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the bankfull width and the bankfull height above the water surface, and the thalweg depth. The value is the mean bankfull width divided by the mean bankfull depth (bankfull height plus thalweg depth).", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 2.1228289842605594, + "y": 0.7 + }, + { + "x": 3.3816957473754883, + "y": 1.0 + }, + { + "x": 6.978457927703857, + "y": 1.0 + }, + { + "x": 8.237324690818786, + "y": 0.7 + }, + { + "x": 10.575220108032227, + "y": 0.3 + }, + { + "x": 14.171982288360596, + "y": 0.0 + } + ] + }, + "referenceN": 13, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 13 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 2.212432384490967, + 30.56403160095215 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 13, + "nComparable": 13, + "nUsable": 13, + "nLocal": 13, + "nHuc12": 13, + "disposition": "exploratory", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.842, + "supportedLevel": "l3", + "transferRisk": "none", + "transferNote": "", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 3.885284185409546, + "q50": 6.094202518463135, + "q75": 9.167290687561035 + }, + "discrimination": { + "aucRefVsPressure": 0.763, + "nRef": 13, + "nPressure": 13, + "medianRefIndex": 0.938, + "medianPressureIndex": 0.0, + "aucRvsIm": null, + "nR": 5, + "nIm": 4, + "verdict": "discriminates" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Hydraulics", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "high-flow-dynamics", + "functionName": "High flow dynamics", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-pctimp2019ws", + "metricName": "Impervious surface", + "inputType": "proportion", + "sourceCitation": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "xLabel": "Impervious surface (%)", + "howToMeasure": "Impervious surface (%) is scored on the same fixed criteria EASI uses in every region. Good <10%, Fair 10-25%, Poor >25%.", + "methodContext": "Percent of the watershed in impervious surface. DEEP computes it for the delineated watershed. Nothing is measured in the field.", + "curve": { + "layerName": "EASI fixed criteria, Catchment hydrology (land-cover pressure)", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 10.0, + "y": 0.69 + }, + { + "x": 25.005, + "y": 0.39 + }, + { + "x": 44.5115, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Catchment hydrology (land-cover pressure)", + "easiMethod": "catchment-land-cover-pressure", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "<10%" + }, + { + "rating": "Fair", + "label": "10-25%" + }, + { + "rating": "Poor", + "label": ">25%" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "schueler-1994", + "text": "Schueler 1994, The importance of imperviousness" + }, + { + "key": "allan-2004", + "text": "Allan 2004, Landscapes and riverscapes: the influence of land use on stream ecosystems" + }, + { + "key": "wang-1997", + "text": "Wang et al. 1997, Influences of watershed land use on habitat quality and biotic integrity in Wisconsin streams" + }, + { + "key": "king-2011", + "text": "King et al. 2011, Stream community thresholds at exceptionally low levels of catchment urbanization" + } + ], + "limitations": [ + "The worse input governs because hydrologic alteration through one pathway is not offset by low pressure in the other.", + "Agricultural bands are national screening tiers, not ecological criteria.", + "A result computed from one input is labeled partial.", + "Sensitive macroinvertebrate taxa decline well below the 10 percent impervious Good boundary (community thresholds near 0.5 to 2 percent), so a Good rating is not a no-effect finding (King et al. 2011)." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "discipline": "Hydraulics", + "assignmentOrigin": "additional-function" + } + ] + }, + { + "functionId": "floodplain-connectivity", + "functionName": "Floodplain connectivity", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-phab-bfwd-rat", + "metricName": "Bankfull width:depth ratio", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull width:depth ratio", + "howToMeasure": "Bankfull width-to-depth ratio; both over-widened (very high) and incised (very low) degrade condition. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the bankfull width and the bankfull height above the water surface, and the thalweg depth. The value is the mean bankfull width divided by the mean bankfull depth (bankfull height plus thalweg depth).", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 2.1228289842605594, + "y": 0.7 + }, + { + "x": 3.3816957473754883, + "y": 1.0 + }, + { + "x": 6.978457927703857, + "y": 1.0 + }, + { + "x": 8.237324690818786, + "y": 0.7 + }, + { + "x": 10.575220108032227, + "y": 0.3 + }, + { + "x": 14.171982288360596, + "y": 0.0 + } + ] + }, + "referenceN": 13, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 13 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 2.212432384490967, + 30.56403160095215 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 13, + "nComparable": 13, + "nUsable": 13, + "nLocal": 13, + "nHuc12": 13, + "disposition": "exploratory", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.842, + "supportedLevel": "l3", + "transferRisk": "none", + "transferNote": "", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 3.885284185409546, + "q50": 6.094202518463135, + "q75": 9.167290687561035 + }, + "discrimination": { + "aucRefVsPressure": 0.763, + "nRef": 13, + "nPressure": 13, + "medianRefIndex": 0.938, + "medianPressureIndex": 0.0, + "aucRvsIm": null, + "nR": 5, + "nIm": 4, + "verdict": "discriminates" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Hydraulics", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xbkf-h", + "metricName": "Bankfull height above channel", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull height above channel (m)", + "howToMeasure": "Mean bankfull height; both incision (very high banks) and over-widening (very low) depart from reference. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the height of the bankfull elevation above the present water surface in meters, with a rod at the water's edge and a clinometer held level at bankfull. The value is the mean of the 11 heights.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.0145455002784729, + "y": 0.3 + }, + { + "x": 0.20009093284606932, + "y": 0.7 + }, + { + "x": 0.30000001192092896, + "y": 1.0 + }, + { + "x": 0.585454523563385, + "y": 1.0 + }, + { + "x": 0.6853636026382446, + "y": 0.7 + }, + { + "x": 0.8709090352058411, + "y": 0.3 + }, + { + "x": 1.1563635468482971, + "y": 0.0 + } + ] + }, + "referenceN": 21, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.29 of evaluation regions; two thirds required; net optimism +0.15, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.16727273166179657, + 0.9727272987365723 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local_relaxed", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 21, + "nComparable": 21, + "nUsable": 21, + "nLocal": 21, + "nHuc12": 21, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.842, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "21 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) of this ecoregion. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.29 of 7 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.15, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l3", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.2857, + "net_opt": 0.1512, + "n_cells": 7, + "c1_share": 0.2857 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 0.30000001192092896, + "q50": 0.3809090852737427, + "q75": 0.585454523563385 + }, + "discrimination": { + "aucRefVsPressure": 0.56, + "nRef": 21, + "nPressure": 13, + "medianRefIndex": 0.848, + "medianPressureIndex": 0.891, + "aucRvsIm": null, + "nR": 5, + "nIm": 4, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l3", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.2857, + "net_opt": 0.1512, + "n_cells": 7, + "c1_share": 0.2857 + }, + "transferNote": "21 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) of this ecoregion. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.29 of 7 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.15, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Hydraulics", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "hyporheic-connectivity", + "functionName": "Hyporheic connectivity", + "discipline": "Hydraulics", + "metrics": [ + { + "metricId": "spring-phab-pct-safn", + "metricName": "Sand + fines", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Sand + fines (%)", + "howToMeasure": "Percent sand and fines; higher indicates fine-sediment loading (worse).", + "methodContext": "Record the size class of the particle at five evenly spaced points across each of the 11 transects and the 10 cross-sections midway between them (105 particles). The value is the percent of particles that are sand or finer.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 8.571427345275879, + "y": 1.0 + }, + { + "x": 25.714284896850586, + "y": 1.0 + }, + { + "x": 60.0, + "y": 0.7 + }, + { + "x": 100.0, + "y": 0.0 + } + ] + }, + "referenceN": 85, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 10.1 (Cold Deserts) because this ecoregion has too few least-disturbed stations of its own. 85 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 10.1 (Cold Deserts), 21 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 0.0, + 100.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "10.1", + "regionName": "Cold Deserts", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 109, + "nComparable": 87, + "nUsable": 85, + "nLocal": 21, + "nHuc12": 80, + "disposition": "adequate", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.842, + "supportedLevel": "l2", + "transferRisk": "low", + "transferNote": "85 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 10.1 (Cold Deserts), 21 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 40.0, + "q50": 49.52381134033203, + "q75": 63.4782600402832 + }, + "discrimination": { + "aucRefVsPressure": 0.512, + "nRef": 85, + "nPressure": 73, + "medianRefIndex": 0.877, + "medianPressureIndex": 0.867, + "aucRvsIm": 0.797, + "nR": 13, + "nIm": 28, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Hydraulics", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xembed", + "metricName": "Embeddedness", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Embeddedness (%)", + "howToMeasure": "Percent embeddedness; higher means interstitial spaces filled with fines (worse).", + "methodContext": "At five evenly spaced points across each of the 11 transects, estimate how much of the particle under the point is buried in sand and finer sediment, in percent. Record the 55 estimates. The value is their mean.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 50.27272605895996, + "y": 1.0 + }, + { + "x": 63.09090805053711, + "y": 1.0 + }, + { + "x": 88.7272720336914, + "y": 0.7 + }, + { + "x": 100.0, + "y": 0.0 + } + ] + }, + "referenceN": 13, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 13 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 49.09090805053711, + 100.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 13, + "nComparable": 13, + "nUsable": 13, + "nLocal": 13, + "nHuc12": 13, + "disposition": "exploratory", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.842, + "supportedLevel": "l2", + "transferRisk": "none", + "transferNote": "", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 19, + "q25": 61.81818199157715, + "q50": 70.7272720336914, + "q75": 84.3636360168457 + }, + "discrimination": { + "aucRefVsPressure": 0.468, + "nRef": 13, + "nPressure": 12, + "medianRefIndex": 0.951, + "medianPressureIndex": 0.856, + "aucRvsIm": null, + "nR": 3, + "nIm": 3, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Hydraulics", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "channel-evolution", + "functionName": "Channel evolution", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-bfwd-rat", + "metricName": "Bankfull width:depth ratio", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull width:depth ratio", + "howToMeasure": "Bankfull width-to-depth ratio; both over-widened (very high) and incised (very low) degrade condition. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the bankfull width and the bankfull height above the water surface, and the thalweg depth. The value is the mean bankfull width divided by the mean bankfull depth (bankfull height plus thalweg depth).", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 2.1228289842605594, + "y": 0.7 + }, + { + "x": 3.3816957473754883, + "y": 1.0 + }, + { + "x": 6.978457927703857, + "y": 1.0 + }, + { + "x": 8.237324690818786, + "y": 0.7 + }, + { + "x": 10.575220108032227, + "y": 0.3 + }, + { + "x": 14.171982288360596, + "y": 0.0 + } + ] + }, + "referenceN": 13, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 13 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 2.212432384490967, + 30.56403160095215 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 13, + "nComparable": 13, + "nUsable": 13, + "nLocal": 13, + "nHuc12": 13, + "disposition": "exploratory", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.842, + "supportedLevel": "l3", + "transferRisk": "none", + "transferNote": "", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 3.885284185409546, + "q50": 6.094202518463135, + "q75": 9.167290687561035 + }, + "discrimination": { + "aucRefVsPressure": 0.763, + "nRef": 13, + "nPressure": 13, + "medianRefIndex": 0.938, + "medianPressureIndex": 0.0, + "aucRvsIm": null, + "nR": 5, + "nIm": 4, + "verdict": "discriminates" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xbkf-h", + "metricName": "Bankfull height above channel", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bankfull height above channel (m)", + "howToMeasure": "Mean bankfull height; both incision (very high banks) and over-widening (very low) depart from reference. Two-sided curve centered on the reference core.", + "methodContext": "At each transect, measure the height of the bankfull elevation above the present water surface in meters, with a rod at the water's edge and a clinometer held level at bankfull. The value is the mean of the 11 heights.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.0145455002784729, + "y": 0.3 + }, + { + "x": 0.20009093284606932, + "y": 0.7 + }, + { + "x": 0.30000001192092896, + "y": 1.0 + }, + { + "x": 0.585454523563385, + "y": 1.0 + }, + { + "x": 0.6853636026382446, + "y": 0.7 + }, + { + "x": 0.8709090352058411, + "y": 0.3 + }, + { + "x": 1.1563635468482971, + "y": 0.0 + } + ] + }, + "referenceN": 21, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.29 of evaluation regions; two thirds required; net optimism +0.15, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.16727273166179657, + 0.9727272987365723 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local_relaxed", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 21, + "nComparable": 21, + "nUsable": 21, + "nLocal": 21, + "nHuc12": 21, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.842, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "21 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) of this ecoregion. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.29 of 7 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.15, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l3", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.2857, + "net_opt": 0.1512, + "n_cells": 7, + "c1_share": 0.2857 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 0.30000001192092896, + "q50": 0.3809090852737427, + "q75": 0.585454523563385 + }, + "discrimination": { + "aucRefVsPressure": 0.56, + "nRef": 21, + "nPressure": 13, + "medianRefIndex": 0.848, + "medianPressureIndex": 0.891, + "aucRvsIm": null, + "nR": 5, + "nIm": 4, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l3", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.2857, + "net_opt": 0.1512, + "n_cells": 7, + "c1_share": 0.2857 + }, + "transferNote": "21 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) of this ecoregion. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.29 of 7 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.15, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Geomorphology", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "channel-floodplain-dynamics", + "functionName": "Channel and floodplain dynamics", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-sinu", + "metricName": "Sinuosity", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Sinuosity", + "howToMeasure": "Channel sinuosity; higher generally indicates a more natural planform.", + "methodContext": "Take a compass bearing (backsight) and the distance between each pair of neighboring transects. The value is the channel length along those segments divided by the straight line distance between the ends of the reach.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 1.0, + "y": 0.0 + }, + { + "x": 1.1179865598678589, + "y": 0.7 + }, + { + "x": 1.4176118671894073, + "y": 1.0 + }, + { + "x": 1.5674245208501816, + "y": 1.0 + } + ] + }, + "referenceN": 80, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 10.1 (Cold Deserts) because this ecoregion has too few least-disturbed stations of its own. 80 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 10.1 (Cold Deserts), 19 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 1.0032570362091064, + 11.91546630859375 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "10.1", + "regionName": "Cold Deserts", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 109, + "nComparable": 87, + "nUsable": 80, + "nLocal": 19, + "nHuc12": 75, + "disposition": "adequate", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.842, + "supportedLevel": "l3", + "transferRisk": "moderate", + "transferNote": "80 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 10.1 (Cold Deserts), 19 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis supports this metric at Level III, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 19, + "q25": 1.265552818775177, + "q50": 1.3740402460098267, + "q75": 1.6123565435409546 + }, + "discrimination": { + "aucRefVsPressure": 0.566, + "nRef": 80, + "nPressure": 58, + "medianRefIndex": 0.84, + "medianPressureIndex": 0.75, + "aucRvsIm": 0.58, + "nR": 10, + "nIm": 25, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xbka", + "metricName": "Bank angle", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Bank angle (degrees)", + "howToMeasure": "Mean bank angle; very steep banks indicate incision and very flat banks an over-widened, aggrading channel, so departure from the reference core in either direction departs from reference. Direction resolved at the Northeastern Highlands review gate (owner decision, 2026-08-21), consistent with the width-to-depth and bankfull-height treatment. low_tail flat added at the adversarial review gate (owner decision, 2026-08-21): a regraded or naturally gentle bank holds at the Functioning edge instead of being penalized, because the flat tail is not symmetric evidence of degradation and the framework's stated use is restoration evaluation.", + "methodContext": "At the left and the right bank of each transect, lay a pole about one meter long against the bank and read its angle from horizontal with a clinometer, in degrees. The value is the mean of the 22 readings.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 0.0, + "y": 0.7 + }, + { + "x": 18.706817817687988, + "y": 0.7 + }, + { + "x": 25.5, + "y": 1.0 + }, + { + "x": 44.90909194946289, + "y": 1.0 + }, + { + "x": 51.7022741317749, + "y": 0.7 + }, + { + "x": 64.31818389892578, + "y": 0.3 + }, + { + "x": 83.72727584838867, + "y": 0.0 + } + ] + }, + "referenceN": 19, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 19 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 3.2272727489471436, + 71.81818389892578 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local_relaxed", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 21, + "nComparable": 21, + "nUsable": 19, + "nLocal": 19, + "nHuc12": 19, + "disposition": "exploratory", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.842, + "supportedLevel": "l2", + "transferRisk": "none", + "transferNote": "19 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) of this ecoregion.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 19, + "q25": 25.5, + "q50": 29.136363983154297, + "q75": 44.90909194946289 + }, + "discrimination": { + "aucRefVsPressure": 0.575, + "nRef": 19, + "nPressure": 12, + "medianRefIndex": 0.955, + "medianPressureIndex": 0.782, + "aucRvsIm": null, + "nR": 3, + "nIm": 3, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "sediment-continuity", + "functionName": "Sediment continuity", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-lrbs-use", + "metricName": "Relative bed stability", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Relative bed stability (log)", + "howToMeasure": "Log relative bed stability; departure from the reference core in EITHER direction departs from reference (negative excess fines, positive an armored, sediment-starved bed, the classic below-impoundment failure). The pilot's rising direction scored armored beds 1.0 and left Sediment continuity blind to its textbook failure mode. Two-sided form is an owner decision at the adversarial review gate, 2026-08-21.", + "methodContext": "Computed, not read in the field. It is the base 10 logarithm of the ratio of the geometric mean particle diameter to the largest diameter the bankfull flow can move, from the particle count, reach slope, bankfull depth, wood tally and residual pools, with the NRSA physical habitat calculations.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": -6.561558246612549, + "y": 0.0 + }, + { + "x": -4.732390284538269, + "y": 0.3 + }, + { + "x": -3.5434311091899873, + "y": 0.7 + }, + { + "x": -2.9032223224639893, + "y": 1.0 + }, + { + "x": -1.0740543603897095, + "y": 1.0 + }, + { + "x": -0.43384557366371157, + "y": 0.7 + }, + { + "x": 0.7551136016845703, + "y": 0.3 + }, + { + "x": 2.58428156375885, + "y": 0.0 + } + ] + }, + "referenceN": 13, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 13 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + -3.3602683544158936, + -0.422942191362381 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 13, + "nComparable": 13, + "nUsable": 13, + "nLocal": 13, + "nHuc12": 13, + "disposition": "exploratory", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.842, + "supportedLevel": "l3", + "transferRisk": "none", + "transferNote": "", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": -2.5195882320404053, + "q50": -1.2235922813415527, + "q75": -0.7109310626983643 + }, + "discrimination": { + "aucRefVsPressure": 0.488, + "nRef": 13, + "nPressure": 13, + "medianRefIndex": 0.937, + "medianPressureIndex": 1.0, + "aucRvsIm": null, + "nR": 5, + "nIm": 4, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-pct-safn", + "metricName": "Sand + fines", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Sand + fines (%)", + "howToMeasure": "Percent sand and fines; higher indicates fine-sediment loading (worse).", + "methodContext": "Record the size class of the particle at five evenly spaced points across each of the 11 transects and the 10 cross-sections midway between them (105 particles). The value is the percent of particles that are sand or finer.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 8.571427345275879, + "y": 1.0 + }, + { + "x": 25.714284896850586, + "y": 1.0 + }, + { + "x": 60.0, + "y": 0.7 + }, + { + "x": 100.0, + "y": 0.0 + } + ] + }, + "referenceN": 85, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 10.1 (Cold Deserts) because this ecoregion has too few least-disturbed stations of its own. 85 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 10.1 (Cold Deserts), 21 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 0.0, + 100.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "10.1", + "regionName": "Cold Deserts", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 109, + "nComparable": 87, + "nUsable": 85, + "nLocal": 21, + "nHuc12": 80, + "disposition": "adequate", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.842, + "supportedLevel": "l2", + "transferRisk": "low", + "transferNote": "85 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 10.1 (Cold Deserts), 21 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 40.0, + "q50": 49.52381134033203, + "q75": 63.4782600402832 + }, + "discrimination": { + "aucRefVsPressure": 0.512, + "nRef": 85, + "nPressure": 73, + "medianRefIndex": 0.877, + "medianPressureIndex": 0.867, + "aucRvsIm": 0.797, + "nR": 13, + "nIm": 28, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "bed-composition-bedform-dynamics", + "functionName": "Bed composition and bedform dynamics", + "discipline": "Geomorphology", + "metrics": [ + { + "metricId": "spring-phab-lsub-dmm", + "metricName": "Substrate size", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Substrate size (log mm)", + "howToMeasure": "Log mean substrate diameter; coarser substrate generally better, but valley-type dependent.", + "methodContext": "From the same 105-particle size class count as sand and fines. The value is the base 10 logarithm of the geometric mean particle diameter in millimeters, computed from the size classes with the NRSA physical habitat calculations.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": -3.9499433785676956, + "y": 0.0 + }, + { + "x": -2.5038230270147324, + "y": 0.3 + }, + { + "x": -0.3346424996852875, + "y": 0.7 + }, + { + "x": 1.1114778518676758, + "y": 1.0 + }, + { + "x": 1.8345380276441574, + "y": 1.0 + } + ] + }, + "referenceN": 85, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 10.1 (Cold Deserts) because this ecoregion has too few least-disturbed stations of its own. 85 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 10.1 (Cold Deserts), 21 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.01, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.56 of evaluation regions; two thirds required); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + -2.110924482345581, + 2.4073596000671387 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "10.1", + "regionName": "Cold Deserts", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 109, + "nComparable": 87, + "nUsable": 85, + "nLocal": 21, + "nHuc12": 80, + "disposition": "adequate", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.842, + "supportedLevel": "l2", + "transferRisk": "unvalidated", + "transferNote": "85 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 10.1 (Cold Deserts), 21 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.01, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.0111, + "n_cells": 18, + "c1_share": 0.4444 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": -0.5748369097709656, + "q50": -0.1849476546049118, + "q75": 0.30275261402130127 + }, + "discrimination": { + "aucRefVsPressure": 0.494, + "nRef": 85, + "nPressure": 73, + "medianRefIndex": 0.833, + "medianPressureIndex": 0.835, + "aucRvsIm": 0.769, + "nR": 13, + "nIm": 28, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5556, + "net_opt": 0.0111, + "n_cells": 18, + "c1_share": 0.4444 + }, + "transferNote": "85 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 10.1 (Cold Deserts), 21 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough. The test found class agreement 0.56 of 18 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.01, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Geomorphology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xembed", + "metricName": "Embeddedness", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Embeddedness (%)", + "howToMeasure": "Percent embeddedness; higher means interstitial spaces filled with fines (worse).", + "methodContext": "At five evenly spaced points across each of the 11 transects, estimate how much of the particle under the point is buried in sand and finer sediment, in percent. Record the 55 estimates. The value is their mean.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 50.27272605895996, + "y": 1.0 + }, + { + "x": 63.09090805053711, + "y": 1.0 + }, + { + "x": 88.7272720336914, + "y": 0.7 + }, + { + "x": 100.0, + "y": 0.0 + } + ] + }, + "referenceN": 13, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 13 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 49.09090805053711, + 100.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 13, + "nComparable": 13, + "nUsable": 13, + "nLocal": 13, + "nHuc12": 13, + "disposition": "exploratory", + "family": "substrate", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.842, + "supportedLevel": "l2", + "transferRisk": "none", + "transferNote": "", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 19, + "q25": 61.81818199157715, + "q50": 70.7272720336914, + "q75": 84.3636360168457 + }, + "discrimination": { + "aucRefVsPressure": 0.468, + "nRef": 13, + "nPressure": 12, + "medianRefIndex": 0.951, + "medianPressureIndex": 0.856, + "aucRvsIm": null, + "nR": 3, + "nIm": 3, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Geomorphology", + "assignmentOrigin": "additional-function", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "light-thermal-regime", + "functionName": "Light & thermal regime", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-chem-chla", + "metricName": "Chlorophyll a", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Chlorophyll a (ug/L)", + "howToMeasure": "Chlorophyll a; higher indicates algal enrichment/eutrophication (worse).", + "methodContext": "Chlorophyll a of the water column in micrograms per liter, from a 2 L grab sample taken at mid-channel at the X-site in an amber bottle, filtered and analyzed in a laboratory.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.32999998331069946, + "y": 1.0 + }, + { + "x": 1.1200000047683716, + "y": 1.0 + }, + { + "x": 2.700000047683716, + "y": 0.7 + }, + { + "x": 5.070000112056732, + "y": 0.3 + }, + { + "x": 6.650000154972076, + "y": 0.0 + } + ] + }, + "referenceN": 85, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from Level II ecoregion 10.1 (Cold Deserts) because this ecoregion has too few least-disturbed stations of its own. 85 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 10.1 (Cold Deserts), 21 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.53 of 17 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.53 of evaluation regions; two thirds required; net optimism +0.17, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.32199999690055847, + 18.209999084472656 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "10.1", + "regionName": "Cold Deserts", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 109, + "nComparable": 86, + "nUsable": 85, + "nLocal": 21, + "nHuc12": 80, + "disposition": "adequate", + "family": "water_chemistry", + "covariates": [ + "bfiws", + "runoffws", + "lith_group" + ], + "selfCoverage": 0.868, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "85 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 10.1 (Cold Deserts), 21 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.53 of 17 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5294, + "net_opt": 0.1681, + "n_cells": 17, + "c1_share": 0.2941 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 1.1200000047683716, + "q50": 1.5800000429153442, + "q75": 2.940000057220459 + }, + "discrimination": { + "aucRefVsPressure": 0.643, + "nRef": 85, + "nPressure": 72, + "medianRefIndex": 0.915, + "medianPressureIndex": 0.686, + "aucRvsIm": 0.832, + "nR": 13, + "nIm": 27, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_l2", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.5294, + "net_opt": 0.1681, + "n_cells": 17, + "c1_share": 0.2941 + }, + "transferNote": "85 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 10.1 (Cold Deserts), 21 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.53 of 17 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.17, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xcdenmid", + "metricName": "Canopy density, mid-channel", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Canopy density, mid-channel (%)", + "howToMeasure": "Mid-channel canopy density; higher shading generally better for thermal/light regime.", + "methodContext": "At mid-channel on each transect, read a convex spherical densiometer facing upstream, downstream, left and right, counting the covered points of 17. The value is the mean of the 44 readings as a percent.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.22918257543018886, + "y": 0.3 + }, + { + "x": 0.5347593426704407, + "y": 0.7 + }, + { + "x": 54.01069641113281, + "y": 1.0 + }, + { + "x": 80.748664945364, + "y": 1.0 + } + ] + }, + "referenceN": 13, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 13 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error.", + "The reference expectation likely varies with ChannelSlopeClass (cross-validated improvement 21%, resample recurrence 88%); the curve is unstratified pending a larger reference pool, so sites at either end of that gradient may read as departures that are natural." + ], + "confidenceLabel": "Low", + "confidenceTotal": 55.3, + "referenceRange": [ + 0.0, + 87.43315887451172 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 13, + "nComparable": 13, + "nUsable": 13, + "nLocal": 13, + "nHuc12": 13, + "disposition": "exploratory", + "family": "riparian", + "covariates": [ + "drainage_area_sqkm", + "precip8110ws" + ], + "selfCoverage": 0.868, + "supportedLevel": "l3", + "transferRisk": "none", + "transferNote": "", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 19, + "q25": 0.4010695070028305, + "q50": 30.48128318786621, + "q75": 52.272727966308594 + }, + "discrimination": { + "aucRefVsPressure": 0.699, + "nRef": 13, + "nPressure": 12, + "medianRefIndex": 0.898, + "medianPressureIndex": 0.707, + "aucRvsIm": null, + "nR": 3, + "nIm": 3, + "verdict": "discriminates" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "carbon-processing", + "functionName": "Carbon processing", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-phab-xcmgw", + "metricName": "Riparian veg cover, woody", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Riparian veg cover, woody (frac)", + "howToMeasure": "Riparian canopy plus mid-layer plus ground cover; higher is better.", + "methodContext": "In a 10 m by 10 m plot on each bank at each transect, estimate the areal cover class of woody vegetation in the canopy, the understory and the ground layer. The value is the summed woody cover of the three layers, averaged over the 22 plots, as a fraction.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.14415584717478072, + "y": 0.3 + }, + { + "x": 0.33636364340782166, + "y": 0.7 + }, + { + "x": 0.800000011920929, + "y": 1.0 + }, + { + "x": 1.0318181961774826, + "y": 1.0 + } + ] + }, + "referenceN": 13, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 13 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 0.0, + 1.0340908765792847 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 13, + "nComparable": 13, + "nUsable": 13, + "nLocal": 13, + "nHuc12": 13, + "disposition": "exploratory", + "family": "riparian", + "covariates": [ + "drainage_area_sqkm", + "precip8110ws" + ], + "selfCoverage": 0.868, + "supportedLevel": "l3", + "transferRisk": "none", + "transferNote": "", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 0.33636364340782166, + "q50": 0.620192289352417, + "q75": 0.7181817889213562 + }, + "discrimination": { + "aucRefVsPressure": 0.568, + "nRef": 13, + "nPressure": 13, + "medianRefIndex": 0.876, + "medianPressureIndex": 0.777, + "aucRvsIm": null, + "nR": 5, + "nIm": 4, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "nutrient-cycling", + "functionName": "Nutrient cycling", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-chem-ntl", + "metricName": "Total nitrogen", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2018-19 regional total nitrogen thresholds, NARS-9 region XER", + "xLabel": "Total nitrogen (mg N/L)", + "howToMeasure": "Total nitrogen; higher indicates nutrient enrichment (worse). The total fraction, reported in every NRSA cycle, and the fraction published nitrogen criteria are written against.", + "methodContext": "Total nitrogen in milligrams of nitrogen per liter, laboratory analysis of the unfiltered mid-channel grab sample from the X-site, kept on ice.", + "curve": { + "layerName": "USEPA NRSA 2018-19 regional total nitrogen thresholds, NARS-9 region XER", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 0.2855, + "y": 0.69 + }, + { + "x": 0.529, + "y": 0.39 + }, + { + "x": 0.84555, + "y": 0.0 + } + ] + }, + "curveCaveats": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ], + "confidenceLabel": "Published benchmark", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "NRSA 2018-19 regional total nitrogen thresholds, NARS-9 region XER", + "easiMethod": "regional-nutrient-condition", + "region": "XER", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "≤0.285 mg N/L" + }, + { + "rating": "Fair", + "label": ">0.285 to <0.529 mg N/L" + }, + { + "rating": "Poor", + "label": "≥0.529 mg N/L" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "nars-regions", + "text": "Ecoregions Used in the National Aquatic Resource Surveys" + } + ], + "limitations": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ] + }, + "referenceSupport": { + "status": "published", + "level": null, + "levelLabel": "", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 0, + "nComparable": 0, + "nUsable": 0, + "nLocal": 0, + "nHuc12": 0, + "disposition": "exploratory", + "family": "water_chemistry", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Scored against a published criterion for NARS-9 region XER rather than against stations of this ecoregion. Its breakpoints are 0.285 and 0.529 mg N/L. The criterion carries its own definition of reference, which need not match this assessment's.", + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 0.12399999797344208, + "q50": 0.23800000548362732, + "q75": 0.46000000834465027 + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "publishedBenchmark": { + "benchmark": "Nutrient condition", + "methodKey": "regional-nutrient-condition", + "analyte": "total nitrogen", + "fraction": "total", + "citations": [ + "nrsa-2018-19", + "nars-regions", + "wqp" + ], + "sourceTier": "connected-nearby", + "confidence": "M/L", + "provisional": false, + "limitations": [ + "Nearby monitoring stations are not necessarily reach-specific.", + "Each station is reduced to a median before station medians are combined, preventing heavily sampled stations from dominating.", + "One analyte may produce a partial rating.", + "When observations are unavailable, the CHEM fallback represents landscape integrity rather than measured nutrient concentration." + ], + "unitConversion": "mg/L to mg N/L x1.0", + "region": "XER" + }, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical" + }, + { + "metricId": "spring-chem-ptl", + "metricName": "Total phosphorus", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2018-19 regional total phosphorus thresholds, NARS-9 region XER", + "xLabel": "Total phosphorus (ug/L)", + "howToMeasure": "Total phosphorus; higher indicates nutrient enrichment (worse).", + "methodContext": "Total phosphorus in micrograms per liter, laboratory analysis of the mid-channel grab sample from the X-site, kept on ice.", + "curve": { + "layerName": "USEPA NRSA 2018-19 regional total phosphorus thresholds, NARS-9 region XER", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 52.05, + "y": 0.69 + }, + { + "x": 95.9, + "y": 0.39 + }, + { + "x": 152.905, + "y": 0.0 + } + ] + }, + "curveCaveats": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ], + "confidenceLabel": "Published benchmark", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "NRSA 2018-19 regional total phosphorus thresholds, NARS-9 region XER", + "easiMethod": "regional-nutrient-condition", + "region": "XER", + "provisional": false, + "bands": [ + { + "rating": "Good", + "label": "≤52 ug/L" + }, + { + "rating": "Fair", + "label": ">52 to <95.9 ug/L" + }, + { + "rating": "Poor", + "label": "≥95.9 ug/L" + } + ], + "citations": [ + { + "key": "nrsa-2018-19", + "text": "National Rivers and Streams Assessment 2018-19 Technical Support Document" + }, + { + "key": "nars-regions", + "text": "Ecoregions Used in the National Aquatic Resource Surveys" + } + ], + "limitations": [ + "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + ] + }, + "referenceSupport": { + "status": "published", + "level": null, + "levelLabel": "", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 0, + "nComparable": 0, + "nUsable": 0, + "nLocal": 0, + "nHuc12": 0, + "disposition": "exploratory", + "family": "water_chemistry", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Scored against a published criterion for NARS-9 region XER rather than against stations of this ecoregion. Its breakpoints are 52 and 95.9 ug/L. The criterion carries its own definition of reference, which need not match this assessment's.", + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 25.555999755859375, + "q50": 45.0, + "q75": 181.0 + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's.", + "basisLimit": "A published criterion is not an estimate of this ecoregion's reference condition and may disagree with a reference curve where one exists.", + "publishedBenchmark": { + "benchmark": "Nutrient condition", + "methodKey": "regional-nutrient-condition", + "analyte": "total phosphorus", + "fraction": "total", + "citations": [ + "nrsa-2018-19", + "nars-regions", + "wqp" + ], + "sourceTier": "connected-nearby", + "confidence": "M/L", + "provisional": false, + "limitations": [ + "Nearby monitoring stations are not necessarily reach-specific.", + "Each station is reduced to a median before station medians are combined, preventing heavily sampled stations from dominating.", + "One analyte may produce a partial rating.", + "When observations are unavailable, the CHEM fallback represents landscape integrity rather than measured nutrient concentration." + ], + "unitConversion": "mg/L to ug/L x1000.0", + "region": "XER" + }, + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical" + } + ] + }, + { + "functionId": "water-soil-quality", + "functionName": "Water & soil quality", + "discipline": "Physicochemistry", + "metrics": [ + { + "metricId": "spring-chem-ph", + "metricName": "pH", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "pH (Std. Units)", + "howToMeasure": "pH degrades condition at BOTH extremes. Two-sided (optimum) curve: scored 1.0 across the reference interquartile core, falling in both tails.", + "methodContext": "pH of the mid-channel grab sample from the X-site, as NRSA reports it. A calibrated multi-parameter meter reads pH in the stream at the same point, at 0.5 m depth or mid-depth in shallow water.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "optimum", + "points": [ + { + "x": 6.889999866485596, + "y": 0.0 + }, + { + "x": 7.375, + "y": 0.3 + }, + { + "x": 7.690250086784363, + "y": 0.7 + }, + { + "x": 7.860000133514404, + "y": 1.0 + }, + { + "x": 8.345000267028809, + "y": 1.0 + }, + { + "x": 8.51475031375885, + "y": 0.7 + }, + { + "x": 8.830000400543213, + "y": 0.3 + }, + { + "x": 9.315000534057617, + "y": 0.0 + } + ] + }, + "referenceN": 86, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "pH carries natural geology (calcareous or naturally acidic waters) as well as disturbance, and a two-sided core narrower than measurement precision is noise rather than condition.", + "The reference stations for this curve were borrowed from Level II ecoregion 10.1 (Cold Deserts) because this ecoregion has too few least-disturbed stations of its own. 86 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 10.1 (Cold Deserts), 21 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 7.389999866485596, + 8.949999809265137 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_l2", + "level": "l2", + "levelLabel": "Level II", + "regionCode": "10.1", + "regionName": "Cold Deserts", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 109, + "nComparable": 86, + "nUsable": 86, + "nLocal": 21, + "nHuc12": 81, + "disposition": "adequate", + "family": "water_chemistry", + "covariates": [ + "bfiws", + "runoffws", + "lith_group" + ], + "selfCoverage": 0.868, + "supportedLevel": "l2", + "transferRisk": "low", + "transferNote": "86 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from Level II 10.1 (Cold Deserts), 21 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on base flow index, runoff, surficial lithology. The national scale analysis found this metric varies no more between Level III ecoregions than at the level borrowed from, so the transfer risk is low.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 7.949999809265137, + "q50": 8.229999542236328, + "q75": 8.40999984741211 + }, + "discrimination": { + "aucRefVsPressure": 0.485, + "nRef": 86, + "nPressure": 73, + "medianRefIndex": 0.983, + "medianPressureIndex": 1.0, + "aucRvsIm": 0.511, + "nR": 13, + "nIm": 28, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-chem-turb", + "metricName": "Turbidity", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Turbidity (NTU)", + "howToMeasure": "Turbidity; higher indicates more suspended sediment (worse).", + "methodContext": "Turbidity in nephelometric turbidity units, laboratory analysis of the mid-channel grab sample from the X-site. Sample before anyone walks the channel upstream.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 1.6292964351168169, + "y": 1.0 + }, + { + "x": 6.363207186086182, + "y": 0.7 + }, + { + "x": 13.46407331254023, + "y": 0.3 + }, + { + "x": 18.197984063509594, + "y": 0.0 + } + ] + }, + "curveCaveats": [ + "Too few streams in this ecoregion are clean enough to observe the reference condition directly, so the expectation is an extrapolation and not a measurement." + ], + "confidenceLabel": "Low", + "confidenceTotal": 47.5, + "criteriaBasis": "reference", + "referenceSupport": { + "status": "modeled", + "level": null, + "levelLabel": "", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 3139, + "nComparable": 3139, + "nUsable": 3139, + "nLocal": 25, + "nHuc12": 0, + "disposition": "exploratory", + "family": "water_chemistry", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "none", + "transferNote": "Only 13 of this ecoregion's stations pass the reference screen, too few to observe reference condition, and no station pool passed the acceptance criteria. The response to landscape pressure was fitted across 3,139 stations nationally and evaluated at the median pressure of the national reference streams. This ecoregion's own level was estimated from 25 of its stations.", + "basis": "modeled-reference", + "basisLabel": "Modeled reference", + "basisStatement": "Reference curve from a modeled expectation. The response to landscape pressure is estimated nationally and this ecoregion's own level is added, because the ecoregion holds too few streams clean enough to observe reference condition directly.", + "basisLimit": "Too few streams in this ecoregion are clean enough to observe the reference condition directly, so the expectation is an extrapolation and not a measurement." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 20, + "q25": 2.4049999713897705, + "q50": 6.78000020980835, + "q75": 37.7524995803833 + }, + "basis": "modeled-reference", + "basisLabel": "Modeled reference", + "basisStatement": "Reference curve from a modeled expectation. The response to landscape pressure is estimated nationally and this ecoregion's own level is added, because the ecoregion holds too few streams clean enough to observe reference condition directly.", + "basisLimit": "Too few streams in this ecoregion are clean enough to observe the reference condition directly, so the expectation is an extrapolation and not a measurement.", + "discipline": "Physicochemistry", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "habitat-provision", + "functionName": "Habitat provision", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-phab-pct-fast", + "metricName": "Fast-water / riffle habitat", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Fast-water / riffle habitat (%)", + "howToMeasure": "Percent fast-water (riffle/run) habitat; more generally better for many biota. Ecoregion-dependent.", + "methodContext": "At each thalweg station record the channel unit (falls, cascade, rapid, riffle, glide, pool, dry). The value is the percent of stations in fast water (falls, cascade, rapid or riffle).", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.5714285884584699, + "y": 0.3 + }, + { + "x": 1.3333333730697632, + "y": 0.7 + }, + { + "x": 49.33333206176758, + "y": 1.0 + }, + { + "x": 73.33333140611649, + "y": 1.0 + } + ] + }, + "referenceN": 13, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 13 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 0.0, + 90.66666412353516 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 13, + "nComparable": 13, + "nUsable": 13, + "nLocal": 13, + "nHuc12": 13, + "disposition": "exploratory", + "family": "channel_form", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "lith_group" + ], + "selfCoverage": 0.842, + "supportedLevel": "l2", + "transferRisk": "none", + "transferNote": "", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 5.0, + "q50": 28.0, + "q75": 49.33333206176758 + }, + "discrimination": { + "aucRefVsPressure": 0.503, + "nRef": 13, + "nPressure": 13, + "medianRefIndex": 0.795, + "medianPressureIndex": 0.762, + "aucRvsIm": null, + "nR": 5, + "nIm": 4, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-phab-xfc-nat", + "metricName": "Natural fish cover", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Natural fish cover (frac)", + "howToMeasure": "Natural fish cover; higher is better.", + "methodContext": "In the 10 m of channel centered on each transect, estimate the areal cover class of each fish cover type on the form (wood, brush, overhanging vegetation, undercut banks, boulders and the rest). The value is the summed areal cover of the types that are not man-made, averaged over the transects.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.0779220802443368, + "y": 0.3 + }, + { + "x": 0.1818181872367859, + "y": 0.7 + }, + { + "x": 0.4636363685131073, + "y": 1.0 + }, + { + "x": 0.604545459151268, + "y": 1.0 + } + ] + }, + "referenceN": 21, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 0.05454545468091965, + 1.1977273225784302 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local_relaxed", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 21, + "nComparable": 21, + "nUsable": 21, + "nLocal": 21, + "nHuc12": 21, + "disposition": "adequate", + "family": "riparian", + "covariates": [ + "drainage_area_sqkm", + "precip8110ws" + ], + "selfCoverage": 0.868, + "supportedLevel": "l3", + "transferRisk": "none", + "transferNote": "21 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) of this ecoregion.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 0.1818181872367859, + "q50": 0.3272727131843567, + "q75": 0.4636363685131073 + }, + "discrimination": { + "aucRefVsPressure": 0.718, + "nRef": 21, + "nPressure": 13, + "medianRefIndex": 0.858, + "medianPressureIndex": 0.7, + "aucRvsIm": null, + "nR": 5, + "nIm": 4, + "verdict": "discriminates" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "population-support", + "functionName": "Population support", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-fish-nat-totlntax", + "metricName": "Native fish taxa richness", + "inputType": "count", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Native fish taxa richness", + "howToMeasure": "Native fish taxa richness; higher is better.", + "methodContext": "Electrofish the sampling reach in an upstream direction, working every habitat between the transects, and identify and count every fish. The value is the number of native taxa.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.42857142857142855, + "y": 0.3 + }, + { + "x": 1.0, + "y": 0.7 + }, + { + "x": 3.0, + "y": 1.0 + }, + { + "x": 4.0, + "y": 1.0 + } + ] + }, + "referenceN": 37, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference expectation likely varies with ChannelSlopeClass (cross-validated improvement 10%, resample recurrence 80%); the curve is unstratified pending a larger reference pool, so sites at either end of that gradient may read as departures that are natural.", + "The reference stations for this curve were borrowed from NARS-9 region ecoregion XER because this ecoregion has too few least-disturbed stations of its own. 37 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region XER, 18 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. The national scale analysis supports this metric at Level II, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 0.0, + 7.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "XER", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 127, + "nComparable": 43, + "nUsable": 37, + "nLocal": 18, + "nHuc12": 37, + "disposition": "adequate", + "family": "biology", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "tmean8110ws" + ], + "selfCoverage": 0.842, + "supportedLevel": "l2", + "transferRisk": "moderate", + "transferNote": "37 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region XER, 18 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. The national scale analysis supports this metric at Level II, finer than the level borrowed from, so the transfer risk is moderate and the expectation may not represent local conditions.", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 18, + "q25": 1.25, + "q50": 3.0, + "q75": 4.0 + }, + "discrimination": { + "aucRefVsPressure": 0.494, + "nRef": 37, + "nPressure": 60, + "medianRefIndex": 0.867, + "medianPressureIndex": 0.85, + "aucRvsIm": 0.546, + "nR": 13, + "nIm": 21, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-bent-totlntax", + "metricName": "Benthic total taxa richness", + "inputType": "count", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Benthic total taxa richness", + "howToMeasure": "Total benthic taxa richness; higher is better.", + "methodContext": "From the same 11-transect composite D-frame net sample (500 micrometer mesh) and laboratory subsample. The value is the total number of taxa.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 11.357142857142858, + "y": 0.3 + }, + { + "x": 26.5, + "y": 0.7 + }, + { + "x": 37.0, + "y": 1.0 + }, + { + "x": 42.25, + "y": 1.0 + } + ] + }, + "referenceN": 115, + "curveCaveats": [ + "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + ], + "confidenceLabel": "Low", + "confidenceTotal": 50.2, + "criteriaBasis": "reference", + "referenceSupport": { + "status": "national", + "level": null, + "levelLabel": "", + "regionCode": "national", + "regionName": "National least-disturbed pool", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 216, + "nComparable": 115, + "nUsable": 115, + "nLocal": 0, + "nHuc12": 110, + "disposition": "adequate", + "family": "biology", + "covariates": [], + "selfCoverage": null, + "supportedLevel": null, + "transferRisk": "moderate", + "transferNote": "115 least-disturbed stations from the national pool whose natural setting falls inside this ecoregion's comparability envelope, none inside this ecoregion. Every donor drains to this ecoregion's faunal province.", + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it." + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 26.0, + "q50": 30.0, + "q75": 37.0 + }, + "basis": "national-reference", + "basisLabel": "National reference", + "basisStatement": "Reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own.", + "basisLimit": "The donor stations lie outside this ecoregion and its parents, matched on natural setting rather than drawn from it.", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "community-dynamics", + "functionName": "Community dynamics", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-bent-hprime", + "metricName": "Shannon diversity (H')", + "inputType": "continuous", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Shannon diversity (H')", + "howToMeasure": "Benthic Shannon diversity; higher diversity indicates better condition.", + "methodContext": "From the same 11-transect composite D-frame net sample (500 micrometer mesh) and laboratory subsample. The value is the Shannon diversity of the taxa counted.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 0.0 + }, + { + "x": 0.8614285673413958, + "y": 0.3 + }, + { + "x": 2.009999990463257, + "y": 0.7 + }, + { + "x": 2.8399999141693115, + "y": 1.0 + }, + { + "x": 3.254999876022339, + "y": 1.0 + } + ] + }, + "referenceN": 13, + "sampleDisposition": "exploratory", + "metricRole": "response", + "curveCaveats": [ + "Built from 13 reference sites (exploratory band, below the automated floor of 20): the point value carries wide sampling error." + ], + "confidenceLabel": "Low", + "confidenceTotal": 59.0, + "referenceRange": [ + 0.41999998688697815, + 3.049999952316284 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "local", + "level": "l3", + "levelLabel": "Level III", + "regionCode": "18", + "regionName": "Wyoming Basin", + "screen": "least-disturbed-v1 (strict), wadeable non-canal frame", + "nPool": 13, + "nComparable": 13, + "nUsable": 13, + "nLocal": 13, + "nHuc12": 13, + "disposition": "exploratory", + "family": "biology", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "tmean8110ws" + ], + "selfCoverage": 0.842, + "supportedLevel": "l3", + "transferRisk": "none", + "transferNote": "", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 2.119999885559082, + "q50": 2.4700000286102295, + "q75": 2.8399999141693115 + }, + "discrimination": { + "aucRefVsPressure": 0.621, + "nRef": 13, + "nPressure": 13, + "medianRefIndex": 0.886, + "medianPressureIndex": 0.74, + "aucRvsIm": null, + "nR": 5, + "nIm": 4, + "verdict": "weak" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + }, + { + "metricId": "spring-bent-tolrpind", + "metricName": "Tolerant individuals (%) ~ HBI", + "inputType": "proportion", + "sourceCitation": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "xLabel": "Tolerant individuals (%) ~ HBI", + "howToMeasure": "Percent tolerant individuals; a higher share of pollution-tolerant taxa indicates worse condition.", + "methodContext": "From the same 11-transect composite D-frame net sample (500 micrometer mesh) and laboratory subsample. The value is the percent of individuals that belong to pollution tolerant taxa.", + "curve": { + "layerName": "USEPA NRSA 2013-24 (L3 ecoregion 18), StreamCurves regional analysis, methodology 0.16-provisional", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 2.4650001525878906, + "y": 1.0 + }, + { + "x": 10.835000038146973, + "y": 1.0 + }, + { + "x": 27.574999809265137, + "y": 0.7 + }, + { + "x": 52.68499946594238, + "y": 0.3 + }, + { + "x": 69.42499923706055, + "y": 0.0 + } + ] + }, + "referenceN": 43, + "sampleDisposition": "adequate", + "metricRole": "response", + "curveCaveats": [ + "The reference stations for this curve were borrowed from NARS-9 region ecoregion XER because this ecoregion has too few least-disturbed stations of its own. 43 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region XER, 21 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.42 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.09, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "Scored on a reference pool whose transfer to this ecoregion was not confirmed by the recovery test (class agreement 0.42 of evaluation regions; two thirds required; net optimism +0.09, at most 0.05 allowed); confidence capped at 39." + ], + "confidenceLabel": "Low", + "confidenceTotal": 39.0, + "referenceRange": [ + 0.33000001311302185, + 98.0 + ], + "criteriaBasis": "reference", + "referenceSupport": { + "status": "borrowed_nars9", + "level": "nars9", + "levelLabel": "NARS-9 region", + "regionCode": "XER", + "regionName": null, + "screen": "least-disturbed-regional-v1 (relaxed tier, watershed agriculture at most 25 percent, the 25 percent floor)", + "screenId": "least-disturbed-regional-v1", + "agricultureLimit": 25.0, + "agricultureRule": "floor", + "nPool": 127, + "nComparable": 43, + "nUsable": 43, + "nLocal": 21, + "nHuc12": 43, + "disposition": "adequate", + "family": "biology", + "covariates": [ + "drainage_area_sqkm", + "nhd_slope", + "tmean8110ws" + ], + "selfCoverage": 0.842, + "supportedLevel": "l3", + "transferRisk": "unvalidated", + "transferNote": "43 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region XER, 21 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.42 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.09, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.4211, + "net_opt": 0.0909, + "n_cells": 19, + "c1_share": 0.3684 + }, + "confidenceCap": 39, + "rule": "REF-16", + "basis": "regional-reference", + "basisLabel": "Regional reference", + "basisStatement": "Reference curve fitted to least-disturbed stations selected by a fixed landscape-pressure screen.", + "basisLimit": "" + }, + "localComparison": { + "label": "Local best-available comparison (not reference)", + "definition": "stations of this ecoregion that pass the relaxed pressure screen", + "n": 21, + "q25": 13.670000076293945, + "q50": 20.329999923706055, + "q75": 35.33000183105469 + }, + "discrimination": { + "aucRefVsPressure": 0.451, + "nRef": 43, + "nPressure": 99, + "medianRefIndex": 0.881, + "medianPressureIndex": 0.907, + "aucRvsIm": 0.636, + "nR": 19, + "nIm": 31, + "verdict": "none" + }, + "basis": "regional-reference", + "basisLabel": "Regional reference", + "transferRisk": "unvalidated", + "transferValidation": { + "basis": "2r_nars9", + "evidence": "metric", + "accepted": false, + "why": "In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically.", + "min_cells": 4, + "min_share": 0.6667, + "max_net_optimism": 0.05, + "verdict": "unsupported", + "a1_share": 0.4211, + "net_opt": 0.0909, + "n_cells": 19, + "c1_share": 0.3684 + }, + "transferNote": "43 stations passing the regional least-disturbed screen (watershed agriculture up to 25 percent, the screen's floor, with the relaxed tier's other limits) from NARS-9 region XER, 21 of them inside this ecoregion. Borrowed stations were matched to this ecoregion's streams on drainage area, channel slope, air temperature. Every station drains to this ecoregion's faunal province. Flagged transfer: the recovery test did not confirm this source for this ecoregion. In the recovery test the source's class calls did not agree with reference often enough and the source promoted sites systematically. The test found class agreement 0.42 of 19 evaluation regions, where two thirds over at least 4 regions is required; net optimism +0.09, where at most 0.05 is allowed. No source passed the validated acceptance criteria for this metric here, so the pool is used under the flagged-transfer rung as the narrowest comparable pool with at least the adequate floor of usable comparable stations that passes the sample, stability and comparability checks. The curve carries transfer risk unvalidated and its confidence is capped at 39; read the condition band with that limitation in mind.", + "confidenceCap": 39, + "discipline": "Biology", + "assignmentOrigin": "canonical", + "referenceTier": "least_disturbed" + } + ] + }, + { + "functionId": "watershed-connectivity", + "functionName": "Watershed connectivity", + "discipline": "Biology", + "metrics": [ + { + "metricId": "spring-nid-dams-1mi", + "metricName": "Mapped dams within one mile", + "inputType": "count", + "sourceCitation": "EASI fixed criteria, Nearby dam-proximity proxy", + "xLabel": "Mapped dams within one mile (dams)", + "howToMeasure": "Mapped dams within one mile is scored on the same fixed criteria EASI uses in every region. Good 0 mapped dams, Fair 1 mapped dam, Poor ≥2 mapped dams.", + "methodContext": "Number of dams in the USACE National Inventory of Dams within one mile of the site. DEEP counts them. Note in the field any barrier the inventory does not show.", + "curve": { + "layerName": "EASI fixed criteria, Nearby dam-proximity proxy", + "stratification": "", + "form": "monotone", + "points": [ + { + "x": 0.0, + "y": 1.0 + }, + { + "x": 1.0, + "y": 0.545 + }, + { + "x": 2.0, + "y": 0.195 + }, + { + "x": 3.0, + "y": 0.0 + } + ] + }, + "metricRole": "pressure_fixed", + "curveCaveats": [ + "EASI lists the criteria for this metric as provisional, so the breakpoints may be revised." + ], + "confidenceLabel": "Fixed criteria", + "criteriaBasis": "fixed", + "criteriaSource": { + "title": "Nearby dam-proximity proxy", + "easiMethod": "nearby-dam-proximity", + "provisional": true, + "bands": [ + { + "rating": "Good", + "label": "0 mapped dams" + }, + { + "rating": "Fair", + "label": "1 mapped dam" + }, + { + "rating": "Poor", + "label": "≥2 mapped dams" + } + ], + "citations": [ + { + "key": "nid", + "text": "USACE National Inventory of Dams" + } + ], + "limitations": [ + "A mapped dam count is a proximity screen and cannot confirm passability or the severity of a barrier.", + "NID carries about 91,000 regulated dams while the National Aquatic Barrier Inventory maps over 500,000 barriers of all sizes, so zero mapped dams is frequently a false negative for passage.", + "Query failure is unscored, not Good." + ] + }, + "basis": "published-benchmark", + "basisLabel": "Published benchmark", + "basisStatement": "Scored against a published criterion rather than against stations from this ecoregion. 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landscape-pressure screen, never by a score. 8 curves are fitted to least-disturbed stations of this ecoregion. 6 curves are fitted to this ecoregion's own streams under the documented regional screen, which relaxes agriculture only. 7 borrow comparable least-disturbed stations from a wider region, stating the region and the transfer risk. 2 carry the national reference label: reference curve fitted to comparable least-disturbed stations drawn from the national pool, because this ecoregion and its parents hold too few of their own. 1 carries the modeled reference label: reference curve from a modeled expectation. The response to landscape pressure is estimated nationally and this ecoregion's own level is added, because the ecoregion holds too few streams clean enough to observe reference condition directly. 5 carry the published benchmark label: scored against a published criterion rather than against stations from this ecoregion. The criterion carries its own definition of reference, which need not match this assessment's. 7 rest on a flagged transfer: a comparable least-disturbed pool the recovery test did not confirm for this ecoregion, used because no validated source supports the metric here, with transfer risk unvalidated and confidence capped. A metric that no basis supports is not scored, and the function it would have scored is reported as unassessed.", + "nHeldForReview": 0 + }, + "insufficientReferenceSupport": [ + { + "metricId": "spring-phab-lwdeqvolm100", + "metricKey": "phab_LWDeqVolM100", + "metricName": "Large wood volume", + "units": "m3/100m", + "functions": [ + { + "functionId": "bed-composition-bedform-dynamics", + "functionName": "Bed composition and bedform dynamics" + } + ], + "functionId": "bed-composition-bedform-dynamics", + "reason": "insufficient-reference-support", + "statement": "Insufficient reference support. No station pool, from this ecoregion's own least-disturbed streams or from a wider region under the regional screen, holds enough comparable stations with a value for this metric and passes acceptance. The local reference: The curve on this pool would be the engine's fallback ramp: the pool's lower quartile sits at or below zero on a scale that cannot go negative (curve status degenerate_q25), and a fallback curve is refused under methodology 0.16 (owner decision D13). This ecoregion under the regional screen: The curve on this pool would be the engine's fallback ramp: the pool's lower quartile sits at or below zero on a scale that cannot go negative (curve status degenerate_q25), and a fallback curve is refused under methodology 0.16 (owner decision D13). The Level II pool (10.1): The pool is not stable, since one station moves a quartile by 0.38 of the interquartile range, more than 0.20. The Level I pool (10): The pool is not stable, since one station moves a quartile by 0.22 of the interquartile range, more than 0.20. The NARS-9 pool (XER): The curve on this pool would be the engine's fallback ramp: the pool's lower quartile sits at or below zero on a scale that cannot go negative (curve status degenerate_q25), and a fallback curve is refused under methodology 0.16 (owner decision D13). No other basis supports it either. National reference: 57 matched national donors, but the donor pool is not stable, since one station moves a quartile by 0.23 of the interquartile range, more than 0.20. 212 national donors inside the comparability envelope, but the curve on this pool would be the engine's fallback ramp: the pool's lower quartile sits at or below zero on a scale that cannot go negative (curve status degenerate_q25), and a fallback curve is refused under methodology 0.16 (owner decision D13). Modeled reference: The model registry holds no approved specification for this metric. Published benchmark: The published criteria STAF draws on include none for this metric. No curve was built and the metric is not scored.", + "levelsTried": [ + { + "level": "l3", + "region_code": "18", + "n_pool": 13, + "n_comparable": 13, + "n_usable": 10, + "n_local": 10 + }, + { + "level": "l3", + "region_code": "18", + "n_pool": 21, + "n_comparable": 21, + "n_usable": 15, + "n_local": 15 + }, + { + "level": "l2", + "region_code": "10.1", + "n_pool": 109, + "n_comparable": 105, + "n_usable": 74, + "n_local": 15 + }, + { + "level": "l1", + "region_code": "10", + "n_pool": 116, + "n_comparable": 112, + "n_usable": 80, + "n_local": 15 + }, + { + "level": "nars9", + "region_code": "XER", + "n_pool": 127, + "n_comparable": 117, + "n_usable": 83, + "n_local": 15 + } + ], + "rungsTried": [ + { + "rung": "REF-12", + "why": "57 matched national donors, but the donor pool is not stable, since one station moves a quartile by 0.23 of the interquartile range, more than 0.20. 212 national donors inside the comparability envelope, but the curve on this pool would be the engine's fallback ramp: the pool's lower quartile sits at or below zero on a scale that cannot go negative (curve status degenerate_q25), and a fallback curve is refused under methodology 0.16 (owner decision D13)." + }, + { + "rung": "REF-13", + "why": "The model registry holds no approved specification for this metric." + }, + { + "rung": "REF-14", + "why": "The published criteria STAF draws on include none for this metric.", + "condition": [ + "catalog", + "no entry" + ] + } + ] + } + ], + "contentDigest": "sha256:0273b0d6091ed8fa689f0ed1646df9de86d7e8be8ffbde8cbaa91de12393d280", + "library": { + "libraryId": "wyoming-basin", + "version": 1, + "updatedAt": "2026-09-30T07:07:09Z", + "author": "StreamCurves regional analysis (STAF)", + "revisionNotes": "Reference condition is the fixed landscape-pressure screen least-disturbed-v1 (strict), wadeable non-canal frame. 13 of 38 stations of this ecoregion pass. 8 reference curves use local stations, 7 borrow from a wider region, 5 metrics use fixed criteria, and 4 metrics are withheld for insufficient reference support.", + "region": { + "kind": "ecoregion", + "code": "18", + "name": "Wyoming Basin" + }, + "contentDigest": "sha256:0273b0d6091ed8fa689f0ed1646df9de86d7e8be8ffbde8cbaa91de12393d280", + "supersedesVersion": null + } +} diff --git a/library/wyoming-basin-v1-calculator-d95530ad.d95530ad2b71.xlsx b/library/wyoming-basin-v1-calculator-d95530ad.d95530ad2b71.xlsx new file mode 100644 index 0000000000000000000000000000000000000000..510a3c1f53521e2c22afd0fe6030635afecab2a5 Binary files /dev/null and b/library/wyoming-basin-v1-calculator-d95530ad.d95530ad2b71.xlsx differ diff --git a/xs/release.07c18e74df1a.json b/xs/release.07c18e74df1a.json new file mode 100644 index 0000000000000000000000000000000000000000..dbd19d8c371c4738b0db4950edb9c0e2e7e71d57 --- /dev/null +++ b/xs/release.07c18e74df1a.json @@ -0,0 +1,3741 @@ +{ + "format": 2, + "tag": "staf-xs-current", + "packed": "2026-10-11T05:41:22+00:00", + "grid": { + "sampling_version": "xsgrid-1", + "sampling_rule": "straight transect in EPSG:5070 through the section point, perpendicular to the 5 m chord downstream; samples at linspace(-wide, wide, n_pts); each sample point transformed to the tile's own CRS and interpolated bilinearly between the four nearest cell centres of the native tile grid (NaN when any is missing), then rounded to float32, the tiles' own precision", + "codec": "z: float32 samples as order-preserving uint32, second differences mod 2^32, int32", + "spacing_m": 30.48, + "quality_rules": "K2b", + "geomorph_sha256": "ef61a98a5e132530722317aebcd91a8331bb9307e6f5e63e20069739ac7d0c94", + "bundle_built": "2026-10-03T00:56:05+00:00", + "bundle_format": 2 + }, + "codes": { + "status": [ + "ok", + "unbalanced", + "no_dem", + "too_few_points", + "ok_reference" + ], + "bank": [ + "slope_break", + "crest_scan" + ], + "bank_none": 255, + "flags": { + "low_bank_capped": 1, + "edge_limited": 2, + "bankfull_area_edge_limited": 4, + "bf_extrapolated": 8 + } + }, + "columns": { + "numbers": "nhdplusid, part, k, n_sec; res (DEM metres, 0 none); status (index into STATUS); bank (index into BANK, 255 none); flags (bits); er, bhr, bfd (x100), bfw, fpw (x10), null when not scored", + "sections": "nhdplusid, part, k; thalweg (float32 m) and thalweg_i (its sample's index); bf_m, lb_m (float32 m above the thalweg); da_sqkm, division, rc_width (x100), rc_depth (x1000), rc_area (x100): the regional bankfull inputs; wide_cm (half-width x100); n_pts; source (3DEP project, 3dep-19 or 3dep-13); tiles (';'-joined tile names); grid_epsg, grid_c, grid_f (per read, in reading order: the CRS and the corner of the window the build read the section on), grid_a, grid_e (its pixel size). 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