Rusk County, Wisconsin
UC17
2359700
282.53
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
Excess algal growth was listed as an impairment for Amacoy Lake in 2014 and has been confirmed every two-year cycle from 2016 to 2024. Evaluation of phosphorus during the same time periods showed no impairment. This lake is on the impaired waters list.Pollutant
Unknown Pollutant
Listed For
Recreation
Impairments
Excess Algal Growth
Current Use
Restricted Recreation
Listing Status
303d Listed
Attainable Use
Recreation
Priority
Low
Designated Use
Recreation
303(d) ID
2014-286
Listing Date
4/1/2014
Impaired Water Notes
This water was assessed during the 2018 listing cycle; new chlorophyll sample data exceeded 2018 WisCALM listing thresholds for the Recreation use. Total phosphorus data did not exceed Recreation use or Fish and Aquatic Life use listing thresholds.
Date
7/11/2017
Impaired Water Notes
This water was assessed during the 2014 listing cycle; chlorophyll sample data exceed 2014 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. Additional monitoring is recommended to identify the pollutant causing excess algal growth.
Date
1/13/2014
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 were clearly below Fish and Aquatic Life listing thresholds.
Date
10/19/2015
Impaired Water Notes
This water was assessed during the 2020 listing cycle; chlorophyll sample data exceeded 2020 WisCALM listing thresholds for the Recreation use. Total phosphorus data were clearly below Recreation use and Fish and Aquatic Life use listing thresholds. Based on the most updated information, no change in existing impaired waters listing is needed.
Date
6/11/2019
Impaired Water Notes
This water was assessed during the 2022 listing cycle; chlorophyll sample data exceeded 2022 WisCALM listing thresholds for the Recreation use. Total phosphorus data were clearly below Recreation use and Fish and Aquatic Life use listing thresholds. Based on the most updated information, no change in existing impaired waters listing is needed.
Date
3/24/2021