Impaired Water - Big Round Lake (Big Round Lake)
Polk County, Wisconsin
SC06
2627400
1,013.72
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
The original assessment is based on intermittent fish data form 1947-1997 and citizen lake water quality monitoring from 1992-2010.
This water was assessed during the 2020 and 2022 cycles; total phosphorus and chlorophyll sample data exceeded criteria both times. This lake was put on the Impaired Waters List in 2020. This lake is covered by a restoration plan: Implementation Plan for the Lake St. Croix Nutrient Total Maximum Daily Load (2025).
Listing Details
Pollutant
Total Phosphorus
Listed For
Recreation
Impairments
Eutrophication, Excess Algal Growth
Current Use
Restricted Recreation
Listing Status
303d Listed
Attainable Use
Full Body Contact - Swimming, Boating
Priority
Low
Designated Use
Full Body Contact - Swimming, Boating
303(d) ID
2020-030
Listing Date
4/1/2020
Impaired Water Notes
This water was assessed during the 2020 listing cycle; total phosphorus and chlorophyll sample data exceeded 2020 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use.
Date
7/22/2019

Impaired Water Notes
This lake is covered by the following watershed plan and was classified as Category 5W as a result: Implementation Plan for the Lake St. Croix Nutrient Total Maximum Daily Load (2025).
Date
8/15/2019

Impaired Water Notes
This water was assessed during the 2022 listing cycle; total phosphorus and chlorophyll sample data exceeded 2022 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use.
Date
5/25/2021