Kewaunee County, Wisconsin
TK02
84000
34.18 - 40.91
6.73
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This segment of East Twin River was evaluated for phosphorus and biology every two years between 2014 and 2024. Phosphorus levels were found to be too high, which was reflected in poor bug community scores. This water is covered by the Northeast Lakeshore TMDL, approved in 2023.Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
Degraded Biological Community
Current Use
Unsupported Aquatic Life
Listing Status
TMDL Approved
Attainable Use
Coldwater - natural reproduction
Priority
Not Applicable
Designated Use
Coldwater - natural reproduction
303(d) ID
2014-24
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 2016 listing cycle; total phosphorus sample data exceed 2016 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
9/3/2015
Impaired Water Notes
This water was assessed during the 2020 listing cycle; new total phosphorus sample data overwhelmingly exceed 2020 WisCALM listing criteria for the 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). Based on the most updated information, no change in existing impaired waters listing is needed. With more macroinvertebrate sampling the Degraded Biological Community impairment could be removed.
Date
7/29/2019