Rock County, Wisconsin
SP13
884700
35.65
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
Leota Lake was evaluated for phosphorus and algae every two years between 2016 and 2024. Phosphorus levels were found to be too high, which was reflected in algal blooms. Pollutant
Total Phosphorus
Listed For
Recreation
Impairments
High Phosphorus Levels, Excess Algal Growth
Current Use
Restricted Recreation
Listing Status
303d Listed
Attainable Use
Recreation
Priority
Medium
Designated Use
Recreation
303(d) ID
2016-217
Listing Date
4/1/2016
Impaired Water Notes
This water was assessed during the 2018 listing cycle; new total phosphorus sample data exceeded 2018 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use; chlorophyll data only exceeded REC thresholds, not FAL.
Date
7/11/2017
Impaired Water Notes
This water was assessed during the 2016 listing cycle; total phosphorus and chlorophyll sample data exceeded 2016 WisCALM listing thresholds for the Recreation use, but did not exceed Fish and Aquatic Life thresholds.
Date
8/2/2015
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, but only phosphorus also exceeded Aquatic Life thresholds.
Date
8/1/2019
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, but only phosphorus also exceeded Aquatic Life thresholds.
Date
5/26/2021