Impaired Water - Silvernagle Creek (Silvernagle Creek)
Taylor County, Wisconsin
CW26
1467400
0.00 - 9.16
9.16
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
Silvernagle Creek was evaluated every two year cycle from 2020 to 2024 for phosphorus and levels were too high for healthy aquatic communities. This water is part of the Wisconsin River TMDL restoration plan.
Listing Details
Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
High Phosphorus Levels
Current Use
Unsupported Aquatic Life
Listing Status
TMDL Approved
Attainable Use
WWFF - Warmwater Forage Fishery
Priority
Not Applicable
Designated Use
WWFF - Warmwater Forage Fishery
303(d) ID
2020-066
Listing Date
4/1/2020
Impaired Water Notes
This water was assessed during the 2020 listing cycle; new total phosphorus sample data exceed 2020 WisCALM listing criteria for the Fish and Aquatic Life use, however, available biological data do not indicate impairment (no macroinvertebrate Index of Biotic Integrity (IBI) scored in the "poor" condition category).
Date
7/11/2019

Impaired Water Notes
This water was assessed during the 2022 listing cycle; new total phosphorus sample data 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