Impaired Water - Unnamed (Unnamed Trib to Lake Michigan)
Marinette County, Wisconsin
GB07
498000
0.00 - 6.04
6.04
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This unnamed stream was evaluated for phosphorus, temperature, and fish community health between 2016 and 2018. The fish community health was found to be poor. This water is covered by a restoration plan: Marinette County Lower Peshtigo River Watershed Management Plan (expires 2027).
Listing Details
Pollutant
Unknown Pollutant
Listed For
Fish and Aquatic Life
Impairments
Degraded Biological Community
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
2018-224
Listing Date
4/1/2018
Impaired Water Notes
This water was assessed during the 2018 listing cycle; new total phosphorus sample data were clearly below 2018 WisCALM listing thresholds for the Fish and Aquatic Life use, however, biological impairment was observed. New fish and available temperature sample data exceeded 2018 WisCALM listing criteria for the Fish and Aquatic Life use (i.e. at least one fish Index of Biotic Integrity (IBI) average scored in the poor condition category).
Date
8/3/2017

Impaired Water Notes
This stream is covered by the following restoration plan and was classified as Category 5W as a result: Marinette County Lower Peshtigo River Watershed Management Plan (expires 2027).
Date
7/31/2019