Washington County, Wisconsin
UR09
853100
16.17
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
Little Friess Lake was evaluated for phosphorus and algae in the 2020, 2022, and 2024 cycles; algae levels were too high, shown in algal blooms during the summer months. This lake was listed in 2020. In 2026, the aquatic plant community was also found to be degraded from both total phosphorus and unspecified pollutants. Pollutant
Unknown Pollutant
Listed For
Fish and Aquatic Life
Impairments
Excess Algal Growth, Degraded Aquatic Vegetation
Current Use
Unsupported Aquatic Life
Listing Status
Addition
Attainable Use
Default - Fish and Aquatic Life
Priority
Low
Designated Use
Default - Fish and Aquatic Life
303(d) ID
2026-47
Listing Date
4/1/2026
Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
Degraded Aquatic Vegetation
Current Use
Unsupported Aquatic Life
Listing Status
Addition
Attainable Use
Default - Fish and Aquatic Life
Priority
Medium
Designated Use
Default - Fish and Aquatic Life
303(d) ID
2026-46
Listing Date
4/1/2026
Pollutant
Unknown Pollutant
Listed For
Recreation
Impairments
Excess Algal Growth, Degraded Aquatic Vegetation
Current Use
Restricted Recreation
Listing Status
303d Listed
Attainable Use
Recreation
Priority
Low
Designated Use
Recreation
303(d) ID
2020-101
Listing Date
4/1/2020
Impaired Water Notes
This water was assessed during the 2020 listing cycle; chlorophyll sample data exceeded 2020 WisCALM listing thresholds for the Recreation use.
Date
8/21/2019
Impaired Water Notes
This water was assessed during the 2022 listing cycle; chlorophyll sample data nearly exceeded 2022 WisCALM listing thresholds for the Recreation use.
Date
6/1/2021