Watershed Health Report

Minnesota River - Granite Falls Watershed

HUC 8: 07020004  DNR Major: 25
Major River Basin: Minnesota River

Area: 2,082 square miles
Stream Length: 2,947 miles
Lakes Area: 15,841 acres

Watershed Mean Health Score: 44

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Overall Watershed Score
Mean Watershed Score:
|
44
Minimum Index Score:
|
3
Hydrology Health Scores
Mean Watershed Score:
|
56
Minimum Index Score:
|
13
Index:
Perennial Cover:
|
13
Impervious Surface:
|
91
Water Withdrawal:
|
99
Hydrologic Storage:
|
17
Flow Variability:
|
61
Geomorphology Health Scores
Mean Watershed Score:
|
57
Minimum Index Score:
|
44
Index:
Soil Erodability:
|
73
Groundwater Contamination:
|
53
Climate Vulnerability:
|
44
Biology Health Scores
Mean Watershed Score:
|
36
Minimum Index Score:
|
3
Index:
Terrestrial Habitat Quality:
|
3
Stream Species:
|
62
Species Richness:
|
57
At-Risk Species:
|
22
Connectivity Health Scores
Mean Watershed Score:
|
21
Minimum Index Score:
|
5
Index:
Terrestrial Habitat Connectivity:
|
5
Aquatic Connectivity:
|
10
Riparian Connectivity:
|
48
Water Quality Health Scores
Mean Watershed Score:
|
52
Minimum Index Score:
|
26
Index:
Non-Point Source:
|
26
Point Source:
|
90
Water Quality Assessment:
|
40

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.