Watershed Health Report

Snake River Watershed

HUC 8: 07030004  DNR Major: 36
Major River Basin: St. Croix River

Area: 1,006 square miles
Stream Length: 930 miles
Lakes Area: 8,739 acres

Watershed Mean Health Score: 62

download health report (PDF/0.5MB)


Overall Watershed Score
Mean Watershed Score:
|
62
Minimum Index Score:
|
10
Hydrology Health Scores
Mean Watershed Score:
|
83
Minimum Index Score:
|
66
Index:
Perennial Cover:
|
87
Impervious Surface:
|
91
Water Withdrawal:
|
100
Hydrologic Storage:
|
74
Flow Variability:
|
66
Geomorphology Health Scores
Mean Watershed Score:
|
60
Minimum Index Score:
|
48
Index:
Soil Erodability:
|
79
Groundwater Contamination:
|
53
Climate Vulnerability:
|
48
Biology Health Scores
Mean Watershed Score:
|
59
Minimum Index Score:
|
18
Index:
Terrestrial Habitat Quality:
|
18
Stream Species:
|
76
Species Richness:
|
78
At-Risk Species:
|
64
Connectivity Health Scores
Mean Watershed Score:
|
41
Minimum Index Score:
|
10
Index:
Terrestrial Habitat Connectivity:
|
23
Aquatic Connectivity:
|
10
Riparian Connectivity:
|
91
Water Quality Health Scores
Mean Watershed Score:
|
69
Minimum Index Score:
|
39
Index:
Non-Point Source:
|
72
Point Source:
|
96
Water Quality Assessment:
|
39

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.