Watershed Health Report

Grand Marais Creek Watershed

HUC 8: 09020306  DNR Major: 67
Major River Basin: Red River

Area: 592 square miles
Stream Length: 570 miles
Lakes Area: 1,363 acres

Watershed Mean Health Score: 42

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Overall Watershed Score
Mean Watershed Score:
|
42
Minimum Index Score:
|
0
Hydrology Health Scores
Mean Watershed Score:
|
54
Minimum Index Score:
|
3
Index:
Perennial Cover:
|
3
Impervious Surface:
|
98
Water Withdrawal:
|
100
Hydrologic Storage:
|
11
Flow Variability:
|
58
Geomorphology Health Scores
Mean Watershed Score:
|
47
Minimum Index Score:
|
0
Index:
Soil Erodability:
|
82
Groundwater Contamination:
|
59
Climate Vulnerability:
|
0
Biology Health Scores
Mean Watershed Score:
|
34
Minimum Index Score:
|
0
Index:
Terrestrial Habitat Quality:
|
0
Stream Species:
|
48
Species Richness:
|
47
At-Risk Species:
|
40
Connectivity Health Scores
Mean Watershed Score:
|
18
Minimum Index Score:
|
1
Index:
Terrestrial Habitat Connectivity:
|
1
Aquatic Connectivity:
|
34
Riparian Connectivity:
|
20
Water Quality Health Scores
Mean Watershed Score:
|
58
Minimum Index Score:
|
25
Index:
Non-Point Source:
|
51
Point Source:
|
98
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.