Buffalo, Pepin County, Wisconsin
BT07
1819300
7.09 - 10.68
3.59
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This water was assessed during the 2016 listing cycle; biological impairment was observed (i.e. at least one macroinvertebrate or fish Index of Biotic Integrity (IBI) average scored in the poor condition category).
This water was assessed during the 2018 listing cycle; based on 2018 WisCALM listing criteria for the Fish and Aquatic Life use, available biological data did not indicate impairment (i.e. no macroinvertebrate or fish Index of Biotic Integrity (IBI) scored in the "poor" condition category). Further biological monitoring is recommended.
Assessments during the 2020 listing cycle reveal that the previously listed unknown pollutant is total phosphorus. An additional impairment of high phosphorus levels was also added based on overwhelming exceedance of phosphorus criteria.
Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
High Phosphorus Levels
Current Use
Unsupported Aquatic Life
Listing Status
303d Listed
Attainable Use
Default - Fish and Aquatic Life
Priority
Low
Designated Use
Default - Fish and Aquatic Life
303(d) ID
2020-053
Listing Date
4/1/2020
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 and Aquatic Life use, however, no biological data (i.e. no macroinvertebrate or fish Index of Biotic Integrity (IBI) scores) were available to assess biological impairment.
Date
7/22/2019
Pollutant
Unknown Pollutant
Listed For
Fish and Aquatic Life
Impairments
NA
Current Use
Unsupported Aquatic Life
Listing Status
Pollutant Removed
Attainable Use
Default - Fish and Aquatic Life
Priority
Delisted 2020
Designated Use
Default - Fish and Aquatic Life
303(d) ID
2016-158
Listing Date
4/1/2016
Impaired Water Notes
This water was assessed during the 2016 listing cycle; biological impairment was observed (i.e. at least one macroinvertebrate or fish Index of Biotic Integrity (IBI) average scored in the poor condition category).
Date
8/30/2015
Impaired Water Notes
Delisted in 2020 based on new information (change unknown pollutant to total phosphorus).
Date
7/22/2019