Oneida County, Wisconsin
UW44
1613000
844.78
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
Big Lake has a special fish consumption advisory for mercury in fish tissue; this lake was listed in the 1998 cycle.
Big Lake was evaluated for phosphorus and algae every two years between 2014 and 2024. Phosphorus levels were initially though to be too high and the lake was listed in the 2014 cycle; further evaluation of the lake resulted in an update of the natural community type and phosphorus criteria. Based on the newly updated lake community type (Two-Story to Shallow Lowland) the lake is clearly below criteria. In the 2022 cycle phosphorus was proposed for removal from the Impaired Waters List.Pollutant
Total Phosphorus
Listed For
Impairments
NA
Current Use
Listing Status
Pollutant Removed
Attainable Use
Priority
Delisted 2022
Designated Use
303(d) ID
2014-263
Listing Date
4/1/2014
Impaired Water Notes
This water was assessed during the 2018 listing cycle; total phosphorus sample data overwhelmingly exceeded 2018 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use and chlorophyll data only exceeded FAL thresholds.
Date
7/11/2017
Impaired Water Notes
This water was assessed during the 2014 listing cycle; total phosphorus sample data overwhelmingly exceed 2014 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use, however, chlorophyll data do not exceed REC or FAL thresholds.
Date
1/10/2014
Impaired Water Notes
This water was assessed during the 2016 listing cycle; total phosphorus sample data overwhelmingly exceed 2016 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use and chlorophyll data did not exceed REC and FAL thresholds.
Date
10/19/2015
Impaired Water Notes
This water was assessed during the 2020 listing cycle; new total phosphorus sample data overwhelmingly exceeded 2020 WisCALM listing thresholds for the Recreation use and Aquatic Life use. Based on the most updated information, no change in existing impaired waters listing is needed.
Date
8/2/2019
Impaired Water Notes
Evaluation of the natural community type resulted in a change from Two-Story Fishery Lake to a Shallow Lowland Drainage Lake. The phosphorus criteria changed from 15 ug/L to 40 ug/L. New total phosphorus sample data were below 2022 WisCALM listing thresholds for the Recreation use and Aquatic Life use.
Date
5/26/2021
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
25
Listing Date
4/1/1998