Polk County, Wisconsin
SC06
2485700
64.46
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
North Pipe Lake was evaluated for phosphorus and algae every two years between 2014 and 2024. Chlorophyll-a values were too high as seen in algal blooms on the lake during the summer months. This lake is covered by a restoration plan: Implementation Plan for the Lake St. Croix Nutrient Total Maximum Daily Load (expires 2025).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
2014-289
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 were clearly below Recreation use and Fish and Aquatic Life use listing thresholds.
Date
7/12/2017
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.
Date
1/15/2014
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 did not exceed REC thresholds. Total phosphorus and chlorophyll data did not exceed Fish and Aquatic Life listing thresholds.
Date
10/19/2015
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: Implementation Plan for the Lake St. Croix Nutrient Total Maximum Daily Load (2025).
Date
7/24/2019
Impaired Water Notes
This water was assessed during the 2022 listing cycle; new chlorophyll sample data exceeded 2022 WisCALM listing thresholds for the Recreation use.
Date
6/1/2021