Milwaukee County, Wisconsin
MI03
16000
2.66 - 6.27
3.61
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This water is covered by the Menomonee River Watershed Nine Key Plan, approved in January 2022. New water quality data reviewed in the 2024 cycle indicate high levels of E. coli and chloride; this water was listed for E. coli and the previous chloride listing was confirmed.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
2024-74
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
WWSF - Warmwater Sport Fishery
Priority
Low
Designated Use
WWSF - Warmwater Sport Fishery
303(d) ID
2018-010
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; chloride sample data exceed 2022 WisCALM listing criteria for the Fish and Aquatic Life use. Based on the most updated information, no change in existing impaired waters listing is needed.
Date
5/20/2021
Pollutant
Fecal Coliform
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
2010-43
Listing Date
4/1/2010
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
Over 30 years of water quality data collected by MMSD and USGS were used to calibrate HSPF models for assessing baseline water quality in the Menomonee Watershed. This portion of the Menomonee River is being listed for recreational restrictions due to high bacteria (Fecal Coliform) levels. The technical reports by SEWRPC (TR 39) and by MMSD (Watershed Restoration Plans) provide the assessment information to support listing the Menomonee River for recreational restrictions. On average, the two monitoring points on the river exceeded the 400 cfu/100 mL criterion 25% of time. Tributaries in the Menomonee where modeling assessment points exist are also being proposed to be listed for Fecal Coliform as work is being done in the entire watershed to address this impairment.
Date
3/23/2010