Impaired Water - Silver Birch Lake (Silver Birch Lake)
Pepin County, Wisconsin
LC02
2054600
144.56
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
Assessments during the 2020 listing cycle showed chlorophyll levels that were clearly too high based on 2020 WisCALM standards for Recreation and Aquatic Life uses. In 2020, the impairment of excess algal growth was added to this already impaired lake.
Listing Details
Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
Excess Algal Growth, Elevated pH , Eutrophication
Current Use
Unsupported Aquatic Life
Listing Status
303d Listed
Attainable Use
WWSF - Warmwater Sport Fishery
Priority
Low
Designated Use
WWSF - Warmwater Sport Fishery
303(d) ID
429
Listing Date
4/1/1998
Impaired Water Notes
DO Problem is a winter DO problem, aeration installed. Ground Water and Sediment P Release Studies Indicate that these are not Significant Sources. Recycling due to Curly Leaf Pondweed
Date
3/25/2002

Impaired Water Notes
This water was assessed during the 2020 listing cycle; chlorophyll sample data exceeded 2020 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use.
Date
8/5/2019