Watershed Health Report

Mississippi River - Grand Rapids Watershed

HUC 8: 07010103  DNR Major: 9
Major River Basin: Upper Mississippi

Area: 2,082 square miles
Stream Length: 1,585 miles
Lakes Area: 75,778 acres

Watershed Mean Health Score: 65

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Overall Watershed Score
Mean Watershed Score:
|
65
Minimum Index Score:
|
15
Hydrology Health Scores
Mean Watershed Score:
|
83
Minimum Index Score:
|
53
Index:
Perennial Cover:
|
94
Impervious Surface:
|
98
Water Withdrawal:
|
90
Hydrologic Storage:
|
79
Flow Variability:
|
53
Geomorphology Health Scores
Mean Watershed Score:
|
59
Minimum Index Score:
|
48
Index:
Soil Erodability:
|
80
Groundwater Contamination:
|
51
Climate Vulnerability:
|
48
Biology Health Scores
Mean Watershed Score:
|
49
Minimum Index Score:
|
36
Index:
Terrestrial Habitat Quality:
|
39
Stream Species:
|
67
Species Richness:
|
54
At-Risk Species:
|
36
Connectivity Health Scores
Mean Watershed Score:
|
53
Minimum Index Score:
|
15
Index:
Terrestrial Habitat Connectivity:
|
49
Aquatic Connectivity:
|
15
Riparian Connectivity:
|
96
Water Quality Health Scores
Mean Watershed Score:
|
83
Minimum Index Score:
|
74
Index:
Non-Point Source:
|
88
Point Source:
|
86
Water Quality Assessment:
|
74

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.