Watershed Health Report

St. Louis River Watershed

HUC 8: 04010201  DNR Major: 3
Major River Basin: Lake Superior

Area: 2,862 square miles
Stream Length: 2,991 miles
Lakes Area: 52,786 acres

Watershed Mean Health Score: 59

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Overall Watershed Score
Mean Watershed Score:
|
59
Minimum Index Score:
|
11
Hydrology Health Scores
Mean Watershed Score:
|
74
Minimum Index Score:
|
54
Index:
Perennial Cover:
|
93
Impervious Surface:
|
88
Water Withdrawal:
|
63
Hydrologic Storage:
|
72
Flow Variability:
|
54
Geomorphology Health Scores
Mean Watershed Score:
|
59
Minimum Index Score:
|
38
Index:
Soil Erodability:
|
82
Groundwater Contamination:
|
58
Climate Vulnerability:
|
38
Biology Health Scores
Mean Watershed Score:
|
52
Minimum Index Score:
|
36
Index:
Terrestrial Habitat Quality:
|
48
Stream Species:
|
69
Species Richness:
|
56
At-Risk Species:
|
36
Connectivity Health Scores
Mean Watershed Score:
|
52
Minimum Index Score:
|
11
Index:
Terrestrial Habitat Connectivity:
|
50
Aquatic Connectivity:
|
11
Riparian Connectivity:
|
95
Water Quality Health Scores
Mean Watershed Score:
|
56
Minimum Index Score:
|
25
Index:
Non-Point Source:
|
75
Point Source:
|
68
Water Quality Assessment:
|
25

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.