Iowa County, Wisconsin
LW15
1242200
0.00 - 15.78
15.78
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This segment of Mill Creek was evaluated for phosphorus and biology every two years between 2012 and 2018. Phosphorus levels were found to be too high. Meudt Creek and Knight Hollow Subwatershed 9 Key Plan (2029). New water quality data reviewed in the 2024 cycle confirmed the phosphorus listing.Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
Impairment Unknown
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
2012-15
Listing Date
4/1/2012
Impaired Water Notes
This stream segment was assessed during the 2012 listing cycle, and total phosphorus sample data exceed criteria for the fish and aquatic life use.
Date
5/20/2013
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
2/27/2014
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 stream is covered by the following restoration plan and this listing was classified as Category 5W as a result: Meudt Creek and Knight Hollow Subwatershed 9 Key Plan (2029).
Date
8/15/2019