Marquette County, Wisconsin
UF13
103100
12.65
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
East Twin Lake was evaluated for phosphorus and chlorophyll in the 2014 cycle and found to be in good condition. Aquatic plant communities of East Twin Lake were evaluated in the 2022 and 2024 cycles and data indicated a healthy system. In 2026, the aquatic plant community was found to be degraded due to excess total phosphorus and this water was placed on the Impaired Waters List. Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
Degraded Aquatic Vegetation
Current Use
Unsupported Aquatic Life
Listing Status
Proposed for List
Attainable Use
Default - Fish and Aquatic Life
Priority
Medium
Designated Use
Default - Fish and Aquatic Life
303(d) ID
2026-84
Listing Date
4/1/2026
Pollutant
Unknown Pollutant
Listed For
Fish and Aquatic Life
Impairments
Degraded Aquatic Vegetation
Current Use
Unsupported Aquatic Life
Listing Status
Proposed for List
Attainable Use
Default - Fish and Aquatic Life
Priority
Low
Designated Use
Default - Fish and Aquatic Life
303(d) ID
2026-85
Listing Date
4/1/2026