Polk County, Wisconsin
SC04
2615700
43.13
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
Mud Lake was evaluated in the 2022 cycle; elevated phosphorus and excess algal growth were identified. This lake was placed on the Impaired Waters List in 2022. This lake was evaluated for aquatic plant communities in the 2024 assessment cycle. The plant community was found to be impacted and this lake was listed for degraded macrophyte populations.Pollutant
Total Phosphorus
Listed For
Recreation
Impairments
Excess Algal Growth, Eutrophication
Current Use
Restricted Recreation
Listing Status
303d Listed
Attainable Use
Recreation
Priority
Low
Designated Use
Recreation
303(d) ID
2022-039
Listing Date
4/1/2022
Impaired Water Notes
This water was assessed during the 2022 cycle; new phosphorus sample data overwhelmingly exceeded 2022 WisCALM listing criteria for Aquatic Life use. This water is covered by the Lake St. Croix TMDL Implementation 9-Key Plan (expires 2025).
Date
6/11/2021