Impaired Water - Lake Michigan (Grant Park Beach, Lake Michigan)
Milwaukee County, Wisconsin
MI01
20
0.70
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This beach was assessed for the 2012 Impaired Waters List, and E. coli data exceeds listing thresholds indicating a recreational use impairment.

This beach was assessed for the 2016 Impaired Waters List; E. coli data did not exceed 2016 WisCALM listing criteria but there were sufficient exceedances that the biologist determined that this beach is not ready to be delisted.

This beach was assessed during the 2018 listing cycle; new E. coli sample data clearly exceeded 2018 WisCALM listing thresholds for the Recreation use.
Reports and Documents
Nicole Clayton
Water Evaluation Section
Listing Details
Pollutant
E. coli
Listed For
Recreation
Impairments
Recreational Restrictions - Pathogens
Current Use
Restricted Recreation
Listing Status
303d Listed
Attainable Use
Full Body Contact - Swimming, Boating
Priority
Low
Designated Use
Full Body Contact - Swimming, Boating
303(d) ID
822
Listing Date
4/1/2006
Impaired Water Notes
This beach was assessed during the 2018 listing cycle; new E. coli sample data clearly exceeded 2018 WisCALM listing thresholds for the Recreation use.
Date
7/13/2017

Impaired Water Notes
This beach was assessed for the 2012 Impaired Waters List, and E. coli data exceeds listing thresholds indicating a recreational use impairment.
Date
7/20/2011

Impaired Water Notes
This beach was assessed for the 2016 Impaired Waters List; E. coli data did not exceed 2016 WisCALM listing criteria but there were sufficient exceedances that the biologist determined that this beach is not ready to be delisted.
Date
10/8/2015