Impaired Water - Trempealeau River (Trempealeau River)
Trempealeau County, Wisconsin
BT02, BT03, BT05
1769900
31.28 - 61.32
30.04
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This water was assessed during the 2016 listing cycle; biological sample data (i.e. macroinvertebrate or fish Index of Biotic Integrity (IBI) scores) clearly met 2016 WisCALM listing thresholds for the Fish and Aquatic Life use.

This water was assessed during the 2018 listing cycle; new total phosphorus sample data overwhelmingly 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).
Listing Details
Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
High Phosphorus Levels
Current Use
WWSF - Warmwater Sport Fishery
Listing Status
303d Listed
Attainable Use
WWSF - Warmwater Sport Fishery
Priority
Low
Designated Use
WWSF - Warmwater Sport Fishery
303(d) ID
2018-127
Listing Date
4/1/2018
Impaired Water Notes
This water was assessed during the 2018 listing cycle; new total phosphorus sample data overwhelmingly 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).
Date
7/25/2017