Manitowoc County, Wisconsin
TK01
89900
0.00 - 6.00
6.00
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
Devil's River was assessed in the 2020, 2022, and 2024 cycles for phosphorus and levels were found to be too high for healthy aquatic communities (plants, bugs, fish). Devil's River was listed in 2020. This water is covered by the Northeast Lakeshore TMDL, approved in 2023.Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
Impairment Unknown
Current Use
Unsupported Aquatic Life
Listing Status
TMDL Approved
Attainable Use
WWSF - Warmwater Sport Fishery
Priority
Not Applicable
Designated Use
WWSF - Warmwater Sport Fishery
303(d) ID
2020-010
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, no biological data (i.e. no macroinvertebrate or fish Index of Biotic Integrity (IBI) scores) were available to assess biological impairment. This listing will be part of the NE Lakeshore TMDL.
Date
7/2/2019
Impaired Water Notes
This water was assessed during the 2022 listing cycle; new total phosphorus sample data exceeded 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