Milwaukee, Ozaukee County, Wisconsin
MI02
44700
0.00 - 3.38
3.38
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
Fish Creek was evaluated in the 2014, 2018, and 2022 cycles. Elevated phosphorus causing degraded biological communities was identified in the 2014 cycle and elevated chloride in the 2018 cycle. Evaluations in the 2022 cycle confirmed the phosphorus impairment. In the 2024 cycle a reevaluation of chloride with new data indicated levels were below the impairment threshold; chloride is proposed for delisting. IN the 2026 cycle data suggested harmful levels of total phosphorus for recreation and aquatic life.Pollutant
Total Phosphorus
Listed For
Impairments
High Phosphorus Levels
Current Use
Listing Status
Addition
Attainable Use
Priority
Medium
Designated Use
303(d) ID
2026-17
Listing Date
4/1/2026
Pollutant
Chloride
Listed For
Fish and Aquatic Life
Impairments
Chronic Aquatic Toxicity
Current Use
Unsupported Aquatic Life
Listing Status
Deletion
Attainable Use
Default - Fish and Aquatic Life
Priority
Not Applicable
Designated Use
Default - Fish and Aquatic Life
303(d) ID
2018-017
Listing Date
4/1/2018
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
6/30/2017
Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
High Phosphorus Levels
Current Use
Unsupported Aquatic Life
Listing Status
Pollutant Removed
Attainable Use
Default - Fish and Aquatic Life
Priority
Delisted 2024
Designated Use
Default - Fish and Aquatic Life
303(d) ID
2014-19
Listing Date
4/1/2014
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 and biological impairment was observed (i.e. at least one macroinvertebrate or fish Index of Biotic Integrity (IBI) scored in the poor condition category).
Date
1/23/2014
Impaired Water Notes
This water was assessed during the 2022 cycle; new phosphorus sample data exceeded 2022 WisCALM listing criteria for Aquatic Life use.
Date
6/21/2021