Vilas County, Wisconsin
UC15
2316600
308.57
Condition has improved over time; water is not impaired.
Notes
This lake was assessed for phosphorus and algae every two years from 2012 to 2024; impairment for phosphorus was identified in 2016. Evaluation of new phosphorus data showed levels below the criterion; plants and algae were in good condition. This lake proposed for full removal from the impaired waters list. Analysis of Mercury showed attainment of Public Health and Welfare and Wildlife uses. Pollutant
Total Phosphorus
Listed For
Impairments
NA
Current Use
Listing Status
Water Delisted
Attainable Use
Priority
Delisted 2024
Designated Use
303(d) ID
2016-274
Listing Date
4/1/2016
Impaired Water Notes
This water was assessed during the 2018 listing cycle; total phosphorus sample data exceed 2018 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use, however chlorophyll data do not exceed REC or FAL thresholds.
Date
7/11/2017
Impaired Water Notes
This water was assessed during the 2016 listing cycle; total phosphorus sample data exceed 2016 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use, however chlorophyll data do not exceed REC or FAL thresholds.
Date
9/2/2015
Impaired Water Notes
The Dead Pike Lake Management Plan meets all requirements of a Nine-Key Plan and so this lake was categorized as a 5W water.
Date
9/13/2019
Pollutant
Mercury
Listed For
Impairments
NA
Current Use
Listing Status
Pollutant Removed
Attainable Use
Priority
Delisted 2020
Designated Use
303(d) ID
101
Listing Date
4/1/1998
Impaired Water Notes
This listing was part of a set removed from the impaired waters list due to a change in fish consumption advisory levels in 2001. In 2001 Wisconsin DNR put into effect a statewide fish consumption advisory for mercury due to atmospheric deposition. Most of the lakes removed from the specific fish consumption advisories list in 2001 were not removed from the impaired waters list even though the thresholds had changed. For the 2020 assessment process WDNR requested delisting of 91 waters with residual mercury listings from prior to 2001. This request was approved by US EPA.
Date
9/4/2018