Dane County, Wisconsin
LR10
5035724
0.00 - 4.98
4.98
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This segment of unnamed tributary to Pheasant Branch was evaluated for phosphorus and biology every two-year cycle from 2018 to 2024. Phosphorus levels were found to be too high resulting in placement on the Impaired Waters List.Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
High Phosphorus Levels
Current Use
Unsupported Aquatic Life
Listing Status
303d Listed
Attainable Use
Default - Fish and Aquatic Life
Priority
Low
Designated Use
Default - Fish and Aquatic Life
303(d) ID
2018-189
Listing Date
4/1/2018
Impaired Water Notes
This water was assessed during the 2018 listing cycle; new total phosphorus sample data overwhelmingly exceed 2018 WisCALM listing thresholds for the Fish and Aquatic Life use, however, no biological data (i.e. no macroinvertebrate or fish Index of Biotic Integrity (IBI) scores) were available to assess biological impairment.
Date
7/31/2017
Impaired Water Notes
This water was assessed during the 2020 listing cycle; new total phosphorus sample data overwhelmingly exceed 2020 WisCALM listing thresholds for the Fish and Aquatic Life use, however, no biological data (i.e. no macroinvertebrate or fish Index of Biotic Integrity (IBI) scores) were available to assess biological impairment. Based on the most updated information, no change in existing impaired waters listing is needed.
Date
7/29/2019
Impaired Water Notes
This water was assessed during the 2022 listing cycle; new total phosphorus sample data overwhelmingly exceed 2022 WisCALM listing thresholds for the Fish and Aquatic Life use. Based on the most updated information, no change in existing impaired waters listing is needed.
Date
5/21/2021