Watershed Health Report

Otter Tail River Watershed

HUC 8: 09020103  DNR Major: 56
Major River Basin: Red River

Area: 1,909 square miles
Stream Length: 901 miles
Lakes Area: 175,981 acres

Watershed Mean Health Score: 58

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Overall Watershed Score
Mean Watershed Score:
|
58
Minimum Index Score:
|
8
Hydrology Health Scores
Mean Watershed Score:
|
76
Minimum Index Score:
|
59
Index:
Perennial Cover:
|
59
Impervious Surface:
|
90
Water Withdrawal:
|
93
Hydrologic Storage:
|
73
Flow Variability:
|
65
Geomorphology Health Scores
Mean Watershed Score:
|
59
Minimum Index Score:
|
38
Index:
Soil Erodability:
|
71
Groundwater Contamination:
|
38
Climate Vulnerability:
|
68
Biology Health Scores
Mean Watershed Score:
|
43
Minimum Index Score:
|
12
Index:
Terrestrial Habitat Quality:
|
12
Stream Species:
|
61
Species Richness:
|
60
At-Risk Species:
|
38
Connectivity Health Scores
Mean Watershed Score:
|
36
Minimum Index Score:
|
8
Index:
Terrestrial Habitat Connectivity:
|
18
Aquatic Connectivity:
|
8
Riparian Connectivity:
|
81
Water Quality Health Scores
Mean Watershed Score:
|
74
Minimum Index Score:
|
59
Index:
Non-Point Source:
|
59
Point Source:
|
92
Water Quality Assessment:
|
72

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.