Eau Claire County, Wisconsin
LC14
2128100
719.87
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
Altoona Lake was evaluated for phosphorus and algae every two-year cycle from 2016 to 2024; phosphorus levels were too high, which was confirmed by excess algal growth. This lake is on the Impaired Waters List. This lake is covered by a restoration plan: Healthy Soils and Healthy Waters: A Community Strategy for the Eau Claire River Watershed (expires 2027).Pollutant
Total Phosphorus
Listed For
Recreation
Impairments
Impairment Unknown, Excess Algal Growth
Current Use
Restricted Recreation
Listing Status
303d Listed
Attainable Use
Recreation
Priority
Low
Designated Use
Recreation
303(d) ID
2018-275
Listing Date
4/1/2018
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
8/4/2017
Impaired Water Notes
This water was assessed during the 2020 listing cycle; new chlorophyll sample data exceeded 2020 WisCALM listing thresholds for the Recreation use. This lake is covered by a restoration plan: Healthy Soils and Healthy Waters: A Community Strategy for the Eau Claire River Watershed (2027).
Date
7/24/2019
Impaired Water Notes
Phosphorus data nearly exceeded 2022 WisCALM listing criteria for REC and AL uses.
Date
6/25/2021
Pollutant
Unknown Pollutant
Listed For
Recreation
Impairments
Excess Algal Growth
Current Use
Restricted Recreation
Listing Status
Pollutant Removed
Attainable Use
Recreation
Priority
Delisted 2018
Designated Use
Recreation
303(d) ID
2016-246
Listing Date
4/1/2016
Impaired Water Notes
This water was assessed during the 2016 listing cycle; chlorophyll sample data exceed 2016 WisCALM listing thresholds for the Recreation use, however, total phosphorus data do not exceed REC thresholds. Total phosphorus and chlorophyll data do not exceed Fish and Aquatic Life thresholds.
Date
2/1/2016
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. The 'Unknown Pollutant' listing is proposed for delisting - it is proposed to be replaced by a Total Phosphorus listing.
Date
8/4/2017