Waukesha County, Wisconsin
FX04
742500
91.98 - 105.34
13.36
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This segment of the Fox River is impaired by PCBs, listed in 1998. This segment was listed for phosphorus in the 2014 cycle. Evaluations every two-year cycle from 2014 to 2024 confirmed the phosphorus impairment.
Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
Impairment Unknown
Current Use
Unsupported Aquatic Life
Listing Status
TMDL Development
Attainable Use
Default - Fish and Aquatic Life
Priority
High
Designated Use
Default - Fish and Aquatic Life
303(d) ID
2014-42
Listing Date
4/1/2014
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
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
4/1/2014
Impaired Water Notes
This water was assessed during the 2020 listing cycle; new total phosphorus sample data exceed 2020 WisCALM listing criteria for the Fish Aquatic Life use.
Date
8/14/2019
Impaired Water Notes
This water was assessed during the 2022 listing cycle; new total phosphorus sample data exceed 2022 WisCALM listing criteria for the Fish Aquatic Life use.
Date
5/24/2021
Pollutant
PCBs
Listed For
Fish Consumption
Impairments
PCBs Contaminated Fish Tissue
Current Use
Specific Restricted Fish Consumption
Listing Status
303d Listed
Attainable Use
General Fish Consumption Advice
Priority
Low
Designated Use
General Fish Consumption Advice
303(d) ID
620
Listing Date
4/1/1998
Impaired Water Notes
New results from 2008 and no change in current PCB fish consumption advice is recommended. Additional sampling is recommended.
Date
11/29/2017