Oconto County, Wisconsin
GB04
443500
32.20
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
Porcupine Lake was evaluated in the 2022 cycle; phosphorus levels were too high, which was confirmed by excess algal growth. This lake is proposed for the 2022 Impaired Waters List.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
2022-032
Listing Date
4/1/2022
Impaired Water Notes
This water was assessed during the 2022 cycle; new chlorophyll-a sample data exceeded 2022 WisCALM listing criteria for Recreation use. The regional biologist recommended listing for phosphorus and high nitrogen.
Date
6/12/2021