Waushara County, Wisconsin
WR02
243700
14.19 - 30.44
16.25
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This segment of Willow Creek was identified as impaired for elevated water temperature (cause unknown) in 2018. Subsequent evaluations confirmed this impairment (2020, 2022, and 2024 cycles).
This segment of Willow Creek was evaluated every two-year cycle from 2016 to 2024; phosphorus, bug, and fish data indicated a healthy system.Pollutant
Unknown Pollutant
Listed For
Fish and Aquatic Life
Impairments
Elevated Water Temperature
Current Use
Unsupported Aquatic Life
Listing Status
303d Listed
Attainable Use
Coldwater - stocked, reproduction
Priority
Low
Designated Use
Coldwater - stocked, reproduction
303(d) ID
2018-300
Listing Date
4/1/2018
Impaired Water Notes
This water was assessed during the 2018 listing cycle; new temperature sample data exceed 2018 WisCALM listing criteria for the Fish and Aquatic Life use, however, available biological data do not indicate impairment (i.e. no macroinvertebrate or fish Index of Biotic Integrity (IBI) scored in the "poor" condition category). Available total phosphorus data were assessed, but did not exceed 2018 WisCALM listing criteria for the Fish and Aquatic Life use.
Date
8/3/2017
Impaired Water Notes
This water was assessed during the 2020 listing cycle; temperature sample data exceed 2020 WisCALM listing criteria for the Fish and Aquatic Life use. Total phosphorus data were clearly below Recreation use and Fish and Aquatic Life use listing thresholds. Available biological data do not indicate impairment (i.e. no macroinvertebrate or fish Index of Biotic Integrity (IBI) scored in the "poor" condition category). Based on the most updated information, no change in existing impaired waters listing is needed.
Date
6/12/2019
Impaired Water Notes
This water was assessed during the 2022 listing cycle; temperature sample data exceed 2022 WisCALM listing criteria for the Fish and Aquatic Life use. Available biological data do not indicate impairment (no macroinvertebrate or fish Index of Biotic Integrity (IBI) scored in the "poor" condition category). Based on the most updated information, no change in existing impaired waters listing is needed.
Date
4/9/2021