Milwaukee, Washington, Waukesha County, Wisconsin
MI03
16000
12.61 - 24.81
12.20
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This segment of Menomonee River was put on the Imparied Waters List for phosphorus during the 2014 cycle and for chloride in the 2018 cycle. Evaluations in the 2020, 2022, and 2024 cycles both confirmed the elevated phosphorus and chloride. The phosphorus listing is covered by the Milwaukee River TP TMDL, approved in 2018. This water is covered by the Menomonee River Watershed Nine Key Plan, approved in January 2022.Pollutant
E. coli
Listed For
Recreation
Impairments
Recreational Restrictions - Pathogens
Current Use
Restricted Recreation
Listing Status
TMDL Approved
Attainable Use
Recreation
Priority
Not Applicable
Designated Use
Recreation
303(d) ID
2024-75
Listing Date
4/1/2024
Pollutant
Chloride
Listed For
Fish and Aquatic Life
Impairments
Acute Aquatic Toxicity, Chronic Aquatic Toxicity
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
2018-011
Listing Date
4/1/2018
Impaired Water Notes
This water was assessed during the 2018 listing cycle; new chloride sample data exceed 2018 WisCALM listing criteria for the Fish and Aquatic Life use.
Date
6/30/2017
Impaired Water Notes
This water was assessed during the 2022 listing cycle; new chloride sample data exceed 2022 WisCALM listing criteria for the Fish and Aquatic Life use.
Date
5/26/2021
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
2014-9
Listing Date
4/1/2014
Impaired Water Notes
The Milwaukee River Watershed TMDL was approved by the EPA on March 9, 2018 and covers waters in the basin impaired for Total Phosphorus, Sediment/Total Suspended Solids, and bacteria (E. coli and Fecal Coliform).
Date
3/9/2018
Impaired Water Notes
This water was assessed during the 2018 listing cycle; new total phosphorus 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).
Date
7/6/2017
Impaired Water Notes
This water was assessed during the 2014 listing cycle; total phosphorus sample data exceed 2014 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).
Date
1/21/2014
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).
Date
8/19/2019
Impaired Water Notes
This water was assessed during the 2022 listing cycle; new total phosphorus sample data calculations showed "May Exceed" levels based on 2022 WisCALM listing criteria for the Fish and Aquatic Life use. No change in listing is needed.
Date
5/26/2021