Impaired Water - Otter Lake (Brown) (Otter Lake)
Chippewa County, Wisconsin
LC19
2157000
601.56
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
Otter Lake was listed as impaired in 2002 for eutophication and elevated pH caused by elevated phosphorus loads from non-point sources.
Listing Details
Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
Eutrophication, Elevated pH
Current Use
Deep Seepage Lake
Listing Status
303d Listed
Attainable Use
WWSF - Warmwater Sport Fishery
Priority
Low
Designated Use
WWSF - Warmwater Sport Fishery
303(d) ID
601
Listing Date
4/1/2002
Impaired Water Notes
Monitoring conducted at two sites in 1995 and 2001 found 4 pH exceedances above 9.0. The lake also experiences severe algae blooms and DO depletion below 4 meters.

The DNR and CORPs conducted water quality monitoring in 2001 and 2002 at two inlake stations. The monitoring was completed to develop water quality models for the TMDL process. SWIMS ID numbers = 093163 and 093162
Date
11/2/2010

Impaired Water Notes
TP and/or chlorophyll data from the period 2006-2010 are insufficient to assess per 2012 WisCALM. However, the previous assessment is carried forward, and the lake remains listed as impaired due to elevated nutrient levels.
Date
6/13/2011