Watershed Health Assessment Scores

This page last updated: 10/08/2018
Metadata created using Minnesota Geographic Metadata Guidelines


Go to Section:
1. Overview
2. Data Quality
3. Data Organization
4. Coordinate System
5. Attributes
6. Distribution - Get Data
7. Metadata Reference

Section 1 Overview
Originator Minnesota Department of Natural Resources (DNR)
Title Watershed Health Assessment Scores
Abstract The Watershed Health Index approach identifies and analyzes data that characterizes the principal components of watershed health at the Major Watershed and Catchment scales. For each of the principal components (Geomorphology, Connectivity, Hydrology, Biology, and Water Quality) indices and underlying metrics have been developed that describe the relative health of the system. The generated values are scaled from 0 to 100 to provide a statewide comparable index of relative health risk.

The Watershed Health Assessment Scores can also be accessed through a web application, learn more about the resource at: Watershed Health Assessment Framework.
Purpose The watershed assessment scores in this dataset can help in making decisions for watershed health management.
Time Period of Content Date 10/08/2018
Currentness Reference Time Period of Content date indicates the date that changes were last made to this dataset. Development of indices is ongoing. Every effort is made to use the most current data available, the exact date will vary from one index score to another. The acquisition date for data used to develop a particular metric or index can be found in the online documentation: www.dnr.state.mn.us/whaf/about/scores/index.html
Progress In work
Maintenance and Update Frequency Continually
Spatial Extent of Data
Bounding Coordinates -98
-89.4
49.5
43.1
Place Keywords State of Minnesota
Theme Keywords assessment, ecology, ecosystems, health, watersheds, whaf
Theme Keyword Thesaurus
Access Constraints none
Use Constraints none
Contact Person Information Beth Knudsen, Watershed Assessment Coordinator
DNR-Ecological and Water Resources
1801 South Oak St.
Lake City, MN  55041
Phone: 651-345-5226, ext.228
Email: beth.knudsen@state.mn.us
Browse Graphic Click to view a data sample
Associated Data Sets This dataset is managed as a table joined to the MNDNR Watershed Suite. For information on attributes associated with the watershed suite refer to the watershed metadata

Section 2 Data Quality
Attribute Accuracy Base attributes were derived from wshd_lev04py3.
Logical Consistency Data have been checked using ESRI ArcView 10.2.x
Completeness Data exist statewide.
Horizontal Positional Accuracy Source layer wshd_lev04py3 and wshd_lev08py3: No quantitative studies of horizontal positional accuracy exist for the data. Although positional accuracy of watershed delineations can be arbitrary, accuracy of these data can be reasonably estimated based on the characteristics of all source materials and processing techniques to be 100 feet (30 meters) from correct position.
Vertical Positional Accuracy Source layer wshd_lev04py3 and wshd_lev08py3: No quantitative studies of vertical positional accuracy exist for the data.
Lineage The base attributes were copied from wshd_lev04py3. AREA attribute was calculated using ArcView 9.3.x's "Calculate Geometry" function.

Each of the index and metric attributes were copied from component scores shapefiles to create this master table. Please have a look at the entity attribute section for explanation of what each attribute name represents. Details on the methods used to calculate indices and metrics can be found at the Watershed Health Assessment website: www.dnr.state.mn.us/whaf/about/scores/index.html

Section 3 Spatial Data Organization (not used in this metadata)

Section 4 Coordinate System
Horizontal Coordinate Scheme Universal Transverse Mercator
UTM Zone Number 15
Horizontal Datum NAD83
Horizontal Units meters
Cell Width 0.000000
Cell Height 0.000000

Section 5 Attributes
Overview This dataset is managed as a join to the MNDNR watershed suite. The Major_Scores table is joined to dnr_watersheds_dnr_level_04_huc_08_majors on the MAJOR field. The Catchment_Scores table is joined to dnr_watersheds_dnr_level_08_all_catchments on the CATCH_ID field. Attribute descriptions for fields associated with the watershed feature data can be found at: ftp.gisdata.mn.gov/pub/gdrs/data/pub/us_mn_state_dnr/geos_dnr_watersheds/metadata/metadata.html

If working with this data in the file geodatabase structure with the provided layer files, a number of the fields have been hidden from view to reduce clutter. These fields can be made visible again through the "Layer Properties" window within the "Fields" menu.
Detailed Citation
Table Detail:
Major_Scores
Field NameValid ValuesDefinitionDefinition Source
OBJECTID1 to 81Internal feature number.ESRI
MAJOR1 to 81Major Watershed ID
MAJNAME
-
Major Watershed Name
HUC_4
-
DNR Hydrologic Unit Level 2, 4 digit Administrative Watershed.
HUC_8
-
DNR Hydrologic Unit Level 4, 8 digit Administrative Watershed.
H_I_MEAN0 to 100Hyd Index - Mean Index; Hydrology component mean score. This is the average of 5 hydrology indices: Hydrologic Storage, Imperviousness, Water Withdrawal, Perennial Cover, and Flow Variability.
H_I_PC_110 to 100Hyd Index - Perennial Cover; Hydrology component index based on the amount of perennial cover on the landscape calculated from 2011 NLCD.
H_I_PC_060 to 100Hyd Index - Perennial Cover; Hydrology component index based on the amount of perennial cover on the landscape calculated from 2006 NLCD.
H_I_PC_010 to 100Hyd Index - Perennial Cover; Hydrology component index based on the amount of perennial cover on the landscape calculated from 2001 NLCD.
H_I_IC_110 to 100Hyd Index - Impervious Cover; Hydrology component index based the percentage of impervious area in the watershed, calculated from the 2011 NLCD impervious surface dataset.
H_I_IC_060 to 100Hyd Index - Impervious Cover; Hydrology component index based the percentage of impervious area in the watershed, calculated from the 2006 NLCD impervious surface dataset.
H_I_IC_010 to 100Hyd Index - Impervious Cover; Hydrology component index based the percentage of impervious area in the watershed, calculated from the 2001 NLCD impervious surface dataset.
H_I_WW0 to 100Hyd Index - Water Withdrawal; Hydrology component index based on the volume of total permitted water use (millions of gallons per year, mgy) from all surface and groundwater sources, and its relationship to volume of available surface water from landscape runoff.
H_I_FV0 to 100Hyd Index - Flow Variability; Hydrology component index based on the degree of deviation from expected stream flow patterns (based on historic stream gage records and indicators of hydrologic alterations (IHA)).
H_ M_FV_MM0 to 100Hyd Metric - Flow Variability, Monthly Magnitude
H_M_FV_RFC0 to 100Hyd Metric - Flow Variability, Rate and Frequency of Change
H_M_FV_MDX0 to 100Hyd Metric - Flow Variability, Magn. and Duration of Annual Extremes
H_M_FV_TX0 to 100Hyd Metric - Flow Variability, Timing of Annual Extremes
H_M_FV_FDP0 to 100Hyd Metric - Flow Variability, Freq. and Dur. of High/Low Pulse
H_I_LHS0 to 100Hyd Index - Loss of Hydrologic Storage; Hydrology component index based on the average of Altered Watercourse metric and Wetland Loss metric.
H_M_LHS_WL0 to 100Hyd Metric - Loss of Hydrologic Storage, Wetland Loss metric. This metric is part of Loss of Hydrologic Storage Index and is based on the area of remaining presettlement surface water features normailized to the watershed area (includes hydric soils, representing wetlands, and open water).
H_M_LHS_AW0 to 100Hyd Metric - Loss of Hydrologic Storage; Altered Watercourse metric. This metric is part of the Loss of Hydrologic Storage Index and is the ratio of unaltered, meandering perennial stream miles, to total stream miles (altered + unaltered); indicates loss of channel storage.
G_I_MEAN0 to 100Geo Index - Mean Index; This is the average of 3 geomorphology indices: Soil Erodability, Groundwater Contamination Susceptibility, and Climate Vulnerability
G_I_SEP0 to 100Geo Index - Soil Erosion Potential; Geomorphology component index, calculated based on the soil k-factor and 4 slope classes (providing scoring weights: 0-1% slope = 1x weight factor, 1-2% slope = 2x weight factor, 2-3% slope = 3x weight factor, >3% slope = 4x weight factor).
G_I_PSNSM0 to 100Geo Index - Pollution Sensitivity of Near-Surface Materials; Geomorphology component index, based on the watershed mean of pollution sensitivity of near-surface materials data, valued on an ordinal basis (MN DNR County Geologic Atlas, 2016).
G_H_PSNSM_SCenumeratedGeomorphology Highlight, Pollution Sensitivity of Near-Surface Materials, Special Conditions; These field provides an explenation of the landscape condition preventing a pollution sensitivity score for the G_I_PSNSM index.
Bedrock at or near surface
Disturbed lands
Peatlands
G_I_SSNS0 to 100Geo Index - Steep Slopes Near Streams; Based on the density of steep slopes that are located within a threshold distance of streams, normalized to total stream length.
G_I CV0 to 100Geo Index - Climate Water Balance; Geomorphology component index based on the 30-year mean balance of precipitation and evapotranspiration.
B_I_MEAN0 to 100Bio Index - Mean Index; Biology component mean score. This is the average of 5 biology indices: Terrestrial Habitat Quality Index, Species Richness Index, At-Risk Species Index, Stream Species Quality Index
B_I_TH0 to 100Bio Index - Terrestrial Habitat Quality; Biology component index that ranks the quality of terrestrial habitats within each watershed.
B_I_SR0 to 100Bio Index - Species Richness; Biology Component index based on ranking the richness (count) of species present in each watershed. Available species counts used are fish, aquatic macro invertebrates, mussels and birds.
B_M_SR_I0 to 100Bio Metric - Species Richness, Invertebrate Richness
B_M_SR_F0 to 100Bio Metric - Species Richness, Fish Richness
B_M_SR_B0 to 100Bio Metric - Species Richness, Bird Richness
B_M_SR_M0 to 100Bio Metric - Species Richness, Mussel Richness
B_I_ARSR0 to 100Bio Index - At Risk Species Richness; Biology component index based on ranking the richness (count) of at-risk species present within each watershed. The more at-risk species, the higher the score. Available species counts used are fish, mussels and birds on the Species of Greatest Conservation Need list.
B_M_ARSR_M0 to 100Bio Metric - At Risk Species Richness, Mussel Species
B_M_ARSR_B0 to 100Bio Metric - At Risk Species Richness, Avian Species
B_M_ARSR_F0 to 100Bio Metric - At Risk Species Richness, Fish Species
B_I_SSQ0 to 100Bio Index - Stream Species Quality; Biology component index ranking stream species quality based on the mean of means for observed and expected (o/e) values for fish, o/e values for aquatic macro invertebrates; and percent of mussel species found live.
B_M_SSQ_FS0 to 100Bio Metric - Stream Species Quality, Fish Survey
B_M_SSQ_IS0 to 100Bio Metric - Stream Species Quality, Aquatic Invertebrates Survey
B_M_SSQ_MS0 to 100Bio Metric - Stream Species Quality, Mussel Score
C_I_MEAN0 to 100Con Index - Mean Index; Connectivity component index based on the average of 3 connectivity indices: Aquatic Connectivity Index, Riparian Connectivity Index, and Terrestrial Habitat Connectivity Index.
C_I_TC0 to 100Con Index - Terrestrial Habitat Connectivity; Connectivity component index based on land area of terrestrial habitat patches and area of potential connections (corridors).
C_I_RC0 to 100Con Index - Riparian Connectivity; Connectivity component index based on the amount of development or cropland within riparian zones.
C_I_AC0 to 100Con Index - Aquatic Connectivity; Connectivity component index based on a density of aquatic disruptions per mile of stream length within each watershed.
W_I_MEAN0 to 100WQ Index - Mean Index; This is the average of 3 water quality indices: Non-point Sources, Point Sources, and Water Quality Assessments
W_I_PS0 to 100WQ Index - Localized Pollution Sources; WQ component index based on the mean of the following metrics: superfund sites, potential contaminants sites, feedlots, open mine pits, and waste water discharge permits (per watershed).
W_I_NPS0 to 100WQ Index - Non-Point Sources; This is the average of the 2 metrics: impervious surface in riparian areas and application rates of agricultural chemicals.
W_M_NPS_PR0 to 100WQ Metric - Non-Point Sources, Phosphorus Risk from Uplands
W_M_NPS_UR0 to 100WQ Metric - Non-Point Sources, Upland Condition Risk
W_M_NPS_CA0 to 100WQ Metric - Non-Point Sources, Riparian Condition Risk
W_I_WQA0 to 100WQ Index - Water Quality Assessments; Based on the percentage of all MN Pollution Control Agency surface water quality assessed that were found to be impaired.
W_M_WQA_AL0 to 100WQ Metric - Water Quality Assessments, Aquatic Life; Based on the percentage of MN Pollution Control Agency water quality assessed that were found to be impaired for aquatic life.
W_M_WQA_AR0 to 100WQ Metric - Water Quality Assessments, Aquatic Recreation; Based on the percentage of MN Pollution Control Agency water quality assessed that were found to be impaired for aquatic recreation.
W_M_WQA_AC0 to 100WQ Metric - Water Quality Assessments, Aquatic Consumption; Based on the percentage of MN Pollution Control Agency water quality assessed that were found to be impaired for aquatic consumption.
A_I_MEAN0 to 100The mean of all five component mean scores.

Catchment_Scores
Field NameValid ValuesDefinitionDefinition Source
OBJECTID1 to 10018Internal feature number.ESRI
CATCH_ID
-
Primary ID field for DNR catchments.
UP_POP0 to 961151Sum of population within the catchment and upstream areas.
UP_AU0 to 4299988Sum of animal units within the catchment and upstream areas.
UP_FL0 to 23293Sum of feedlots within the catchment and upstream areas
UP_MAX_AU0 to 10500The count of animal units at the largest upstream feedlot.
UP_OPN_WAT0 to 100Percent of upstream area occupied by open water.
UP_CLT_LND0 to 100Percent of upstream area occupied by cultivated land.
UP_PRN_CVR0 to 100Percent of upstream area occupied by perennial cover.
UP_OTHER0 to 100Percent of upstream area accupied by land uses other than open water, cultivated land, or perennial cover.
H_I_PC_110 to 100Hyd Index - Perennial Cover; Hydrology component index based on the amount of perennial cover on the landscape calculated from 2011 NLCD.
H_I_PC_060 to 100Hyd Index - Perennial Cover; Hydrology component index based on the amount of perennial cover on the landscape calculated from 2006 NLCD.
H_I_PC_010 to 100Hyd Index - Perennial Cover; Hydrology component index based on the amount of perennial cover on the landscape calculated from 2001 NLCD.
H_I_IC_110 to 100Hyd Index - Impervious Cover; Hydrology component index based the percentage of impervious area in the watershed, calculated from the 2011 NLCD impervious surface dataset.
H_I_IC_060 to 100Hyd Index - Impervious Cover; Hydrology component index based the percentage of impervious area in the watershed, calculated from the 2006 NLCD impervious surface dataset.
H_I_IC_010 to 100Hyd Index - Impervious Cover; Hydrology component index based the percentage of impervious area in the watershed, calculated from the 2001 NLCD impervious surface dataset.
H_I_WW0 to 100Hyd Index - Water Withdrawal; Hydrology component index based on the volume of total permitted water use (millions of gallons per year, mgy) from all surface and groundwater sources, and its relationship to volume of available surface water from landscape runoff.
H_I_LHS0 to 100Hyd Index - Loss of Hydrologic Storage; Hydrology component index based on the average of Altered Watercourse metric and Wetland Loss metric.
H_M_LHS_WL0 to 100Hyd Metric - Loss of Hydrologic Storage, Wetland Loss; Based on the area of remaining presettlement surface water features normailized to the watershed area (includes hydric soils, representing wetlands, and open water).
H_M_LHS_AW0 to 100Hyd Metric - Loss of Hydrologic Storage, Altered Watercourse; Based on the ratio of unaltered, meandering perennial stream miles, to total stream miles (altered + unaltered); indicates loss of channel storage.
G_I_SEP0 to 100Geo Index - Soil Erosion Susceptibility; Based on the soil k-factor and 4 slope classes (providing scoring weights: 0-1% slope = 1x weight factor, 1-2% slope = 2x weight factor, 2-3% slope = 3x weight factor, >3% slope = 4x weight factor).
G_I_PSNSM0 to 100Geo Index - Pollution Sensitivity of Near-Surface Materials; Based on the watershed mean of pollution sensitivity of near-surface materials data, valued on an ordinal basis (MN DNR County Geologic Atlas, 2016).
G_H_PSNSM_SCenumeratedGeomorphology Highlight, Pollution Sensitivity of Near-Surface Materials, Special Conditions; An explenatory attribute of the landscape condition preventing a pollution sensitivity score for the G_I_PSNSM index.
Bedrock at or near surface
Disturbed lands
Peatlands
B_I_TH0 to 100Bio Index - Terrestrial Habitat Quality. Biology component index that ranks the quality of terrestrial habitats within each watershed.
B_M_SSQ_FI0 to 100Bio Metric - Stream Species Quality, Fish IBI; Based on MPCA's stream biology assessments, Fishes Index of Biotic Integrity (IBI).
B_M_SSQ_FX0 to 100Bio Index - Stream Species Quality, Fish IBI Extrapolated; Average of hydrologically adjacent catchment B_M_SSQ_FI health scores.
B_M_SSQ_II0 to 100Bio Metric - Stream Species Quality, Invertebrate IBI; Based on MPCA's stream biology assessments, Aquatic Macroinvertebrate Index of Biotic Integrity (IBI).
B_M_SSQ_IX0 to 100Bio Metric - Stream Species Quality, Invertebrate IBI Extrapolated; Average of hydrologically adjacent catchment B_M_SSQ_II health scores.
B_M_SSQ_MS0 to 100Bio Metric - Stream Species Quality, Mussel Score; Based on the MNDNR's biologic assessment of mussel species.
B_M_SSQ_MX0 to 100Bio Metric - Stream Species Quality, Mussel Score Extrapolated; Average of hydrologically adjacent catchment B_M_SSQ_MS health scores.
C_I_RC0 to 100Con Index - Riparian Connectivity; Based on the proportion of stream riparian areas that are classified as developed or cultivated.
C_I_AC0 to 100Con Index - Aquatic Connectivity; Based on the relative density of bridges, culverts, and dams normalized to the total stream length.
W_I_PS0 to 100WQ Index - Localized Pollution Sources; An average of the localized pollution source metrics.
W_M_PS_A0 to 100WQ Metric - Localized Pollution Sources, Animal Units; Based on the density of animal units normalized by the total watershed land area.
W_M_PS_PC0 to 100WQ Metric - Localized Pollution Sources, Potential Conataminants; Based on the density of potential contaminants (subset of MPCAs, What's in my Neighborhood? database) normalized to total watershed land area.
W_M_PS_SF0 to 100WQ Metric - Localized Pollution Sources, Superfund Sites; Based on the density of superfund sites normalized to total watershed land area.
W_M_PS_WTP0 to 100WQ Metric - Localized Pollution Sources, Wastewater Treatment Plants; Based on the density of effluent discharged by water treatment plants.
W_M_PS_SS0 to 100WQ Metric - Localized Pollution Sources, Septic Systems; Based on the density of domestic wells (wells are used as a proxy for identifying homes not serviced by municipal utilities).
W_M_PS_OPM0 to 100WQ Metric - Localized Pollution Sources, Open Pit Mines; Based on the density of open pit mine area normalized to total watershed land area).
W_M_NPS_PR0 to 100WQ Metric - Non-Point Source, Phosphorus Risk from Uplands; Based on estimate of phosphorus runoff risk, accounting for land cover type, soil erodibility, and topographic slope.
W_M_WQA_AL0 to 100WQ Metric - Water Quality Assessments, Aquatic Life; Based on the percentage of MN Pollution Control Agency water quality assessed that were found to be impaired for aquatic life.
W_M_WQA_AR0 to 100WQ Metric - Water Quality Assessments, Aquatic Recreation; Based on the percentage of MN Pollution Control Agency water quality assessed that were found to be impaired for aquatic recreation.
W_M_WQA_AC0 to 100WQ Metric - Water Quality Assessments, Aquatic Consumption; Based on the percentage of MN Pollution Control Agency water quality assessed that were found to be impaired for aquatic consumption.
A_AVG_GTS0 to 100Combined Score - Geomorphology Triage Score; This score is used within a targeted decision process for selecting sites for more detailed fluvial geomorphic assessments. This score is calculated by taking the average of 8 input index scores: B_M_SSQ_F, C_I_AC, C_I_RC, G_I_SSNS, H_I_PC_11, H_M_LHS_AW, and W_M_PS_A.


Section 6 Distribution
Publisher Minnesota DNR - Ecological and Water Resources
Publication Date 11/30/2015
Contact Person Information Ben Gosack, WHAF Data and Technical Lead
Minnesota DNR - Ecological and Water Resources
500 Lafayette Rd
Saint Paul, MN  55155
Phone: 651-259-5167
Email: ben.gosack@state.mn.us
Distributor's Data Set Identifier env_watershed_health_assessment
Distribution Liability The Minnesota Department of Natural Resources General Geographic Data License Agreement is online: www.dnr.state.mn.us/sitetools/data_software_license.html
Ordering Instructions Please visit the download page for this dataset on the Minnesota Geospatial Commons website using the web link below (Online Linkage).
Online Linkage I AGREE to the notice in "Distribution Liability" above. Clicking to agree will either begin the download process or link to download information. See "Ordering Instructions" above for details.

Section 7 Metadata Reference
Metadata Date 10/08/2018
Contact Person Information Zeb Thomas, GIS Data Systems Coordinator
Minnesota Department of Natural Resources
500 Lafayette Rd
Saint Paul, MN  55155
Phone: 651-259-5637
Email: zeb.thomas@state.mn.us
Metadata Standard Name Minnesota Geographic Metadata Guidelines
Metadata Standard Version 1.2
Metadata Standard Online Linkage http://www.mngeo.state.mn.us/committee/standards/mgmg/metadata.htm


This page last updated: 10/08/2018
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