Oneida County, Wisconsin
UW42
1598000
200.92
Condition has remained stable; water is not impaired.
Notes
Chain Lake was evaluated in the 2022 and 2024 cycles; phosphorus, algae, and aquatic plant data indicated a healthy system. This lake is on the Waters Attaining Standards List.Pollutant
Total Phosphorus
Listed For
Impairments
NA
Current Use
Listing Status
Water Delisted
Attainable Use
Priority
Delisted 2018
Designated Use
303(d) ID
2016-236
Listing Date
4/1/2016
Impaired Water Notes
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. Total Phosphorus criteria for this lake were changed because this lake is no longer considered a Two-Story Fishery Lake. With this change there is no longer a total phosphorus impairment.
Date
7/14/2017
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
8/6/2015
Pollutant
Mercury
Listed For
Impairments
NA
Current Use
Listing Status
Pollutant Removed
Attainable Use
Priority
Delisted 2016
Designated Use
303(d) ID
472 (in part)
Listing Date
4/1/1998
Impaired Water Notes
Chain Lake was added to the 303(d) list due to mercury in 1998. This water was assessed during the 2016 listing cycle; new fish tissue data confirms that the statewide mercury advisory is sufficient because mercury concentrations fall in the range of the general advisory.
Date
8/6/2015