Impaired Water - Rock Creek (Rock Creek)
Clark County, Wisconsin
BR10
1750800
0.00 - 21.89
21.89
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This portion of Rock Creek was evaluated every two years between 2012 and 2022; chloride, bugs, fish, and temperature samples indicated a healthy system, but phosphorus levels were too high which resulted in a listing in 2012.
Listing Details
Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
High Phosphorus Levels
Current Use
FAL - Fish and Aquatic Life Community
Listing Status
303d Listed
Attainable Use
WWSF - Warmwater Sport Fishery
Priority
Medium
Designated Use
WWSF - Warmwater Sport Fishery
303(d) ID
2012-978
Listing Date
4/1/2012
Impaired Water Notes
This water was assessed during the 2012 listing cycle, and total phosphorus sample data overwhelmingly exceed listing criteria (i.e. two times the applicable criterion) for the fish and aquatic life use.
Date
2/28/2013

Impaired Water Notes
This water was assessed during the 2014 listing cycle; total phosphorus sample data overwhelmingly exceed 2014 WisCALM listing thresholds 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
2/26/2014

Impaired Water Notes
This water was assessed during the 2016 listing cycle; total phosphorus sample data overwhelmingly exceeded 2016 WisCALM listing thresholds 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
9/23/2015