Impaired Water - Fifth Lake (Fifth Lake)
Oneida County, Wisconsin
UW40
1571100
237.98
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This water was assessed during the 2014 listing cycle; total phosphorus and chlorophyll-a data clearly met 2014 WisCALM Recreation and Fish and Aquatic Life thresholds. Fish tissue data indicated that Fifth Lake should be placed on the impaired waters list for Mercury; it was listed in 2014.

This water was assessed during the 2016 listing cycle; total phosphorus and chlorophyll sample data were clearly below 2016 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use.

This water was assessed during the 2018 listing cycle; new total phosphorus and chlorophyll sample data were clearly below 2018 WisCALM listing thresholds for the Recreation use and the Fish and Aquatic Life use.

Assessments of new total phosphorus and chlorophyll data during the 2020 listing cycle show these parameters are in good condition for Aquatic Life and Recreation uses according to 2020 WisCALM standards for these uses.
Listing Details
Pollutant
Mercury
Listed For
Fish Consumption
Impairments
Mercury Contaminated Fish Tissue
Current Use
Specific Restricted Fish Consumption
Listing Status
303d Listed
Attainable Use
Unrestricted Fish Consumption
Priority
Low
Designated Use
Unrestricted Fish Consumption
303(d) ID
2014-204
Listing Date
4/1/2014
Impaired Water Notes
Listing correction. This lake should have been listed for contaminated fish tissue prior to 2014.
Date
1/16/2014