Impaired Water - Unnamed (South 43rd Street Ditch)
Milwaukee County, Wisconsin
MI01
15900
0.00 - 1.16
1.16
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This stream was identified as impaired for bacteria in the 2010 cycle, for phosphorus in the 2012 cycle, and for chloride in the 2022 cycle. The Milwaukee River Basin TMDL, approved in 2018, addresses the bacteria and phosphorus listings.
Listing Details
Pollutant
Chloride
Listed For
Fish and Aquatic Life
Impairments
Chronic Aquatic Toxicity, Acute Aquatic Toxicity
Current Use
LAL - Limited Aquatic Life
Listing Status
Addition
Attainable Use
Default - Fish and Aquatic Life Variance Water for DO and Pathogens
Priority
Low
Designated Use
Default - Fish and Aquatic Life Variance Water for DO and Pathogens
303(d) ID
2022-011
Listing Date
4/1/2022
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
6/9/2021

 
Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
Degraded Biological Community
Current Use
LAL - Limited Aquatic Life
Listing Status
TMDL Approved
Attainable Use
Default - Fish and Aquatic Life Variance Water for DO and Pathogens
Priority
Not Applicable
Designated Use
Default - Fish and Aquatic Life Variance Water for DO and Pathogens
303(d) ID
2012-80
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 total phosphorus sample data exceed 2012 WisCALM listing criteria for the fish and aquatic life use, while there was no biological data available regional biologists recommended this water be listed as impaired with total phosphorus as the pollutant.List in 2010 due to high fecal coliform and recreational restrictions.
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
2/26/2014

Impaired Water Notes
This water was assessed during the 2022 listing cycle; total phosphorus sample data exceed 2022 WisCALM listing criteria for the Fish and Aquatic Life use.
Date
6/9/2021

 
Pollutant
Fecal Coliform
Listed For
Recreation
Impairments
Recreational Restrictions - Pathogens
Current Use
Restricted Recreation
Listing Status
TMDL Approved
Attainable Use
Full Body Contact - Swimming, Boating
Priority
Not Applicable
Designated Use
Full Body Contact - Swimming, Boating
303(d) ID
2010-31
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
South 43rd Street Ditch is impaired due to recreational restrictions because of high Fecal Coliform bacteria levels. The Watershed Restoration Plan for Kinnickinnic River Watershed developed by MMSD 2009 assessed this area against a Fecal Coliform criterion of 2000 cfu/100 ml and showed that this waterbody exceeds this criterion 18% of the time (this is above the WisCALM threshold of 400CFU/100mL). The mean Fecal Coliform concentration is 4080 cfu/100 ml on an annual basis and 2047 cfu/100 ml seasonally. 60% of the urban nonpoint loads could not be explained land uses through the model. This could mean other sources such as leaking sewers or illicit connections could be adding to the FC load. Bacteria loads to this watershed are considered significant and are a concern for the Southeastern Wisconsin Watersheds Trust (SWWT) Policy Committee: http://www.swwtwater.org/home/documents.cfm
Date
11/25/2009