Milwaukee County, Wisconsin
MI01
15100
3.16 - 5.49
2.33
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This segment of the Kinnickinnic River is listed as impaired for chloride, phosphorus, and fecal coliform. The restoration plan (TMDL) for phosphorus and fecal coliform was approved in 2018. Elevated chloride levels were confirmed in the 2022 and 2024 cycles. Elevated phosphorus was confirmed and elevated E. coli found in the 2024 cycle.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
2024-72
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
2014-7
Listing Date
4/1/2014
Impaired Water Notes
This water was assessed during the 2014 listing cycle and chloride sample data exceed 2014 WisCALM listing criteria for the Fish and Aquatic Life use.
Date
12/31/2013
Impaired Water Notes
This water was assessed during the 2016 listing cycle and chloride sample data exceed 2016 WisCALM chronic and acute listing criteria for the Fish and Aquatic Life use.
Date
8/20/2015
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
4/11/2017
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
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
Degraded Biological Community
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
2012-78
Listing Date
4/1/2012
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 2012 listing cycle, and while the total phosphorus sample data did not exceed 2012 WisCALM listing criteria for the fish and aquatic life use, regional biologists recommend this water be listed as impaired with total phosphorus as the pollutant. See 2012 MMSD TP Package results.
Date
10/21/2011
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, no biological data (i.e. no macroinvertebrate or fish Index of Biotic Integrity (IBI) scores) were available to assess biological impairment).
Date
1/21/2014
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
2010-29
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
The entire mainstem of the Kinnickinnic River is severely degraded. 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 KK Watershed. The entire length of the KK River is being listed for recreational restrictions due to high bacteria (Fecal Coliform) levels. Fecal coliform concentrations exceed the variance criterion (1000chu/100mL) or WisCALM threshold more than 20% of the time. A large portion of the Kinnickinnic River is concrete lined, in conduit and contains drop structures. This reach of the KK River is being listed for recreational restrictions due to high fecal coliform (bacteria) levels caused by urban runoff, and possibly leaking sewers and/or illicit discharges. The technical reports by SEWRPC (TR 39) and by MMSD (Watershed Restoration Plans) provide the assessment information to support listing the KK for recreational restrictions. Tributaries in the KK watershed, 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
11/25/2009