Impaired Water - Milwaukee River (Milwaukee River)
Fond Du Lac, Washington County, Wisconsin
MI06
15000
68.50 - 103.34
34.84
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This portion of the Milwaukee River was listed for elevated water temperature in 2016. During the 2020 cycle elevated phosphorus levels were found and added to the Impaired Waters List. Evaluation in the 2022 and 2024 cycles confirmed the phosphorus impairment.
Listing Details
Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
Impairment Unknown
Current Use
Unsupported Aquatic Life
Listing Status
TMDL Approved
Attainable Use
Default - Fish and Aquatic Life
Priority
Not Applicable
Designated Use
Default - Fish and Aquatic Life
303(d) ID
2020-069
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 (i.e. no macroinvertebrate or fish Index of Biotic Integrity (IBI) scored in the "poor" condition category).

This new listing was added to an appendix to the Milwaukee River Basin TMDL.
Date
7/2/2019

Impaired Water Notes
This water was assessed during the 2022 listing cycle; new total phosphorus sample data exceed 2022 WisCALM listing criteria for the Fish and Aquatic Life use.
Date
5/25/2021

 
Pollutant
Unknown Pollutant
Listed For
Fish and Aquatic Life
Impairments
Elevated Water Temperature
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
2016-008
Listing Date
4/1/2016
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.
Date
7/24/2017

Impaired Water Notes
This water was assessed during the 2016 listing cycle; temperature data exceeded 2016 WisCALM listing thresholds for the Fish and Aquatic Life use.
Date
8/30/2015

 
Pollutant
PCBs
Listed For
Fish and Aquatic Life
Impairments
NA
Current Use
Unsupported Aquatic Life
Listing Status
Water Delisted
Attainable Use
Default - Fish and Aquatic Life
Priority
Delisted 2006
Designated Use
Default - Fish and Aquatic Life
303(d) ID
619
Listing Date
4/1/1998
Impaired Water Notes
Available sediment data shows that PCB levels fall below the impairment threshold. This PCB listing was proposed for removal from the impaired waters list in 2006.
Date
4/1/2006