Impaired Water - Chippewa River (Chippewa River)
Buffalo, Pepin County, Wisconsin
LC01, LC02, LC03
2050000
0.00 - 20.73
20.73
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
The Chippewa River is 303(d) listed for PCBs. New fish data suggested removing Mercury Specific Advisory for this stretch of the Chippewa River. On 303d List since 1998.
This water was assessed during the 2014 listing cycle; total phosphorus sample data clearly met 2014 WisCALM listing thresholds for the Fish and Aquatic Life use (no biological data (i.e. no macroinvertebrate or fish Index of Biotic Integrity (IBI) scores) were available to assess biological impairment).

This water was assessed during the 2018 listing cycle; new total phosphorus sample data may exceed 2018 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).

Assessments of new chloride and total phosphorus data during the 2020 listing cycle showed conditions appropriate for healthy aquatic communities like plants, fish, and bugs.
Listing Details
Pollutant
PCBs
Listed For
Fish Consumption
Impairments
PCBs Contaminated Fish Tissue
Current Use
Specific Restricted Fish Consumption
Listing Status
303d Listed
Attainable Use
Unrestricted Fish Consumption
Priority
Low
Designated Use
Unrestricted Fish Consumption
303(d) ID
80
Listing Date
4/1/2008
Impaired Water Notes
New data. Delete mercury and FCA based on new fish contaminant data; consolidate TMDL 80 (for PCBs). This AU: Mouth to lower end of Nine Mile Slough.
Date
4/1/2008

 
Pollutant
Mercury
Listed For
Fish Consumption
Impairments
Mercury Contaminated Fish Tissue
Current Use
Specific Restricted Fish Consumption
Listing Status
Pollutant Removed
Attainable Use
Unrestricted Fish Consumption
Priority
Delisted 2008
Designated Use
Unrestricted Fish Consumption
303(d) ID
80
Listing Date
4/1/1998
Impaired Water Notes
New fish data. PCBs for specific advisory only. New fish data removing Hg Specific Advisory. ID was 78 changed to 80. Delete mercury and FCA based on new fish contiminant data; consolidate TMDL 80 (for PCBs) This AU: Mouth to lower end of Nine Mile Slough
Date
4/1/2008