Ozaukee County, Wisconsin
MI02
15000
19.35 - 29.33
9.98
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This segment of the Milwaukee River was put on the Impaired Waters List during the 1998 cycle for PCB contaminated fish tissue and sediment and for bacteria causing recreation restrictions. The TMDL for PCBs was approved in 2008 and the one for bacteria was approved in 2018. The 2024 evaluation confirmed the E. coli listing. This river segment is on the Waters In Restoration List.Pollutant
PCBs
Listed For
Fish Consumption
Impairments
PCBs Contaminated Fish Tissue
Current Use
Specific Restricted Fish Consumption
Listing Status
TMDL Approved
Attainable Use
General Fish Consumption Advice
Priority
Not Applicable
Designated Use
General Fish Consumption Advice
303(d) ID
291
Listing Date
4/1/1998
Impaired Water Notes
The Milwaukee River Segment 2 extends from the Thiensville Dam at river mile 20 to the Lime
Kiln Dam at river mile 30 in the Village of Grafton. River Segment 2 includes the Thiensville
Impoundment, a 700-acre and 5-miles of free-flowing river. Median surficial PCB sediment
concentrations are approximately 0.2 mg/kg and 1 mg/kg at intermediate sediment depths. While
Thiensville Impoundment sediments contribute to PCB contamination in Milwaukee River fish
and wildlife, the greatest benefit toward reducing PCBs in Milwaukee River fish and wildlife
populations would result following an expedited remediation of PCB contaminated sediment in
Cedar Creek (Baird & Associates, 1997).
Date
8/29/2008
Impaired Water Notes
The Cedar Creek & Milwaukee River PCBs TMDL was approved by the USEPA September 23, 2008.
Date
9/23/2008
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
291
Listing Date
4/1/1998
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