Zumbro Watershed Health Assessment
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Zumbro River Minn R-Shakopee Mean Watershed Miss R & L Pepin 65 54 63 Health Scores WATERSHED HEALTH ASSESSMENT SCORES 44 70 Cannon River 84 79 68 46 64 Mean (average) Health Score 49 42 54 63 73 78 68 Minimum Health Index Score 60 69 69 7 48 68 Minimum Health Index: 40 57 Connectivity - Aquatic 69 59 6663 65 Health Score 51 62 67 41 58 Watershed Assessment Tool 64 64 64 0 - 20 63 http://www.dnr.state.mn.us/watershed_tool 67 45 59 21 - 40 45 61 62 50 51 58 Zumbro River 53 49 59 41 - 60 46 50 Miss R-Winona 42 61 - 80 47 45 44 50 46 81 - 100 54 43 45 48 48 49 55 48 45 49 Le Sueur River 50 47 63 44 43 43 54 NLCD 2001 - LandLe Cover Sueur River 45 45 49 47 4760 44 Open Water Watershed Health Scores compare and rank various aspects of ecological health Developed across Minnesota. Index values are based on a variety of data sources, calculations Forest and scientific approaches. Each index is scored on a scale from 0 to 100, with 0 being Grassland Root River the least desirable result or condtion to 100 being the best existing condition or most Pasture/Hay Cedar River desirable result. Major watershed scale rankings may mask the range of conditions Cultivated Crops that occur at more local scales. A high score may indicate the least impacted condition Wetlands Shell Rock River 0 21Miles in Minnesota, not necessarily a healthy condition. COMPONENT SCORES HYDROLOGY GEOMORPHOLOGY BIOLOGY CONNECTIVITY WATER QUALITY Mean (Ave.) 69 Mean (Ave.) 50 Mean (Ave.) 44 Mean (Ave.) 31 Mean (Ave.) 53 Minimum Index 35 Minimum Index 24 Minimum Index 10 Minimum Index 7 Minimum Index 29 INDEX SCORES INDEX SCORES INDEX SCORES INDEX SCORES INDEX SCORES Soil Erosion Terrestrial Habitat Terrestrial Habitat Perennial Cover 35 53 10 18 Non-Point Source 29 Susceptibility Quality Connectivity Impervious Cover 83 * Point Source 79 Groundwater Stream Species 68 Aquatic Connectivity 7 * Withdrawal 95 * 24 Storage Susceptibility Assessments 49 62 Species Richness 60 Riparian 68 Flow Variability 69 Climate Connectivity 74 At-Risk Species 39 Vulnerability Richness Metric Sub-Scores Metric Sub-Scores Metric Sub-Scores Storage: Aquatic Connectivity: Non-Point Source: Stream/Ditch Ratio 93 Bridges/Culverts 5 Nutrient Application 55 Surface storage 31 Dams 8 Riparian Impervious 4 *These index values are influenced by very low scores associated with dense urban use of resources. This gives comparatively high scores for outstate Minnesota. Viewing input data is necessary to evaluate possible watershed scale concerns. November, 2011.