Impaired Water - Yahara River (Yahara River)
Columbia, Dane County, Wisconsin
LR09
798300
47.11 - 63.05
15.94
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This portion of the Yahara River was evaluated for phosphorus and biology every two years between 2014 and 2020. Phosphorus levels were found to be too high, but biology was not impaired. Phosphorus was listed in 2014. This water was also assessed in 2016 for chloride and levels were also found to be too high.
Listing Details
Pollutant
Chloride
Listed For
Fish and Aquatic Life
Impairments
Chronic Aquatic Toxicity
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
2016-080
Listing Date
4/1/2016
Impaired Water Notes
This water was assessed during the 2016 listing cycle and chloride sample data exceeded 2016 WisCALM chronic listing criteria for the Fish and Aquatic Life use.
Date
8/21/2015

 
Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
Impairment Unknown
Current Use
WWSF - Warmwater Sport Fishery
Listing Status
TMDL Approved
Attainable Use
WWSF - Warmwater Sport Fishery
Priority
Not Applicable
Designated Use
WWSF - Warmwater Sport Fishery
303(d) ID
2014-310
Listing Date
4/1/2014
Impaired Water Notes
Automated TP package did not pick up a large amount of USGS data for a site on this segment. 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, no biological data (i.e. no macroinvertebrate or fish Index of Biotic Integrity (IBI) scores) were available to assess biological impairment).
Date
2/6/2014

Impaired Water Notes
This water was assessed during the 2020 listing cycle; new total phosphorus sample data 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).
Date
8/14/2019