Watershed Health Report

Minnesota River - Mankato Watershed

HUC 8: 07020007  DNR Major: 28
Major River Basin: Minnesota River

Area: 1,347 square miles
Stream Length: 1,586 miles
Lakes Area: 20,594 acres

Watershed Mean Health Score: 45

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Overall Watershed Score
Mean Watershed Score:
|
45
Minimum Index Score:
|
5
Hydrology Health Scores
Mean Watershed Score:
|
56
Minimum Index Score:
|
14
Index:
Perennial Cover:
|
14
Impervious Surface:
|
87
Water Withdrawal:
|
95
Hydrologic Storage:
|
19
Flow Variability:
|
66
Geomorphology Health Scores
Mean Watershed Score:
|
66
Minimum Index Score:
|
58
Index:
Soil Erodability:
|
76
Groundwater Contamination:
|
58
Climate Vulnerability:
|
64
Biology Health Scores
Mean Watershed Score:
|
31
Minimum Index Score:
|
5
Index:
Terrestrial Habitat Quality:
|
5
Stream Species:
|
49
Species Richness:
|
49
At-Risk Species:
|
19
Connectivity Health Scores
Mean Watershed Score:
|
24
Minimum Index Score:
|
7
Index:
Terrestrial Habitat Connectivity:
|
7
Aquatic Connectivity:
|
21
Riparian Connectivity:
|
45
Water Quality Health Scores
Mean Watershed Score:
|
47
Minimum Index Score:
|
26
Index:
Non-Point Source:
|
29
Point Source:
|
86
Water Quality Assessment:
|
26

WAT Score
The Watershed Assessment Tool measures five components of watershed health. These components are: Hydrology, Geomorphology, Biology, Connectivity and Water Quality. Each component contains 3-5 health index scores. The index scores are combined to create a component score. The component scores are also combined into an overall mean (average) watershed health score; and the index identified with lowest score is the watershed minimum health score.
 
Please go to the Watershed Health Assessment Results page for more information.