Ozaukee, Sheboygan, Washington County, Wisconsin
MI05
27100
0.00 - 23.50
23.50
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This segment of the North Branch Milwaukee River was evaluated every two-year cycle from 2012 to 2024; phosphorus and degraded biology was found in the 2012 cycle and confirmed in subsequent assessments. 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
2012-54
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
Based on the total phosphorus criteria excursions and the corroborating biological assessment (poor scoring fish IBI), this water is proposed as a new listing due to the “degraded biological community impairment caused by elevated total phosphorus concentrations.
Date
8/3/2011
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, available biological data do not indicate impairment (i.e. no macroinvertebrate or fish Index of Biotic Integrity (IBI) scored in the "poor" condition category).
Date
2/26/2014
Impaired Water Notes
This water was assessed during the 2016 listing cycle; total phosphorus sample data exceed 2016 WisCALM listing criteria for the Fish and Aquatic Life use, however, available biological data do not indicate impairment (i.e. no macroinvertebrate or fish Index of Biotic Integrity (IBI) scored in the "poor" condition category).
Date
10/5/2015