Clark County, Wisconsin
BR09
1676700
89.75 - 99.17
9.42
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This segment of the Black River was put on the Impaired Waters List in the 1998 cycle for mercury in fish tissue. Phosphorus was added to the list in the 2014 cycle. Evaluation in the 2020 and 2022 cycles showed bug and fish communities in good condition.Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
Impairment Unknown
Current Use
Unsupported Aquatic Life
Listing Status
303d Listed
Attainable Use
WWSF - Warmwater Sport Fishery
Priority
Low
Designated Use
WWSF - Warmwater Sport Fishery
303(d) ID
2014-144
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, however, no biological data (i.e. no macroinvertebrate or fish Index of Biotic Integrity (IBI) scores) were available to assess biological impairment).
Date
2/3/2014
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
10/2/2015
Pollutant
Mercury
Listed For
Fish Consumption
Impairments
Mercury Contaminated Fish Tissue
Current Use
Specific Restricted Fish Consumption
Listing Status
303d Listed
Attainable Use
General Fish Consumption Advice
Priority
Low
Designated Use
General Fish Consumption Advice
303(d) ID
51
Listing Date
4/1/1998
Impaired Water Notes
Technical change. Updated TMDL from 50 to 51 for consistency with other mercury issues on black river.
Date
4/1/2008