Vilas County, Wisconsin
UW38
1545600
1,070.36
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This lake was put on the 303(d) due to mercury in 1998 but was delisted in 2006 because new data verfiied general fish consumption advisory only, not specific advisory.
Big Arbor Vitae Lake was assessed for phosphorus and algae every two-year cycle from 2016 to 2024; impairments of excess algal growth and phosphorus were first found in cycles 2016 and 2018, respectively, and confirmed in the subsequent cycles.Pollutant
Total Phosphorus
Listed For
Recreation
Impairments
Impairment Unknown, Excess Algal Growth
Current Use
Restricted Recreation
Listing Status
303d Listed
Attainable Use
Recreation
Priority
Low
Designated Use
Recreation
303(d) ID
2018-240
Listing Date
4/1/2018
Impaired Water Notes
This water was assessed during the 2018 listing cycle; new total phosphorus sample data exceeded 2018 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use; chlorophyll data only exceeded REC thresholds, not FAL.
Date
7/11/2017
Impaired Water Notes
This water was assessed during the 2020 listing cycle; chlorophyll sample data exceeded 2020 WisCALM listing thresholds for the Recreation use. Based on the most updated information, no change in existing impaired waters listing is needed.
Date
6/12/2019
Impaired Water Notes
This water was assessed during the 2022 listing cycle; chlorophyll sample data exceeded 2022 WisCALM listing thresholds for the Recreation use. Based on the most updated information, no change in existing impaired waters listing is needed.
Date
6/1/2021
Pollutant
Unknown Pollutant
Listed For
Recreation
Impairments
Excess Algal Growth
Current Use
Restricted Recreation
Listing Status
Pollutant Removed
Attainable Use
Recreation
Priority
Delisted 2018
Designated Use
Recreation
303(d) ID
2016-230
Listing Date
4/1/2016
Impaired Water Notes
This water was assessed during the 2018 listing cycle; new total phosphorus sample data exceeded 2018 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use; chlorophyll data only exceeded REC thresholds, not FAL.
Date
7/11/2017
Impaired Water Notes
This water was assessed during the 2016 listing cycle; chlorophyll sample data exceed 2016 WisCALM listing thresholds for the Recreation use, however, total phosphorus data do not exceed REC thresholds. Total phosphorus and chlorophyll data do not exceed Fish and Aquatic Life thresholds.
Date
8/7/2015
Pollutant
Mercury
Listed For
Impairments
NA
Current Use
Listing Status
Water Delisted
Attainable Use
Priority
Delisted 2006
Designated Use
303(d) ID
36
Listing Date
4/1/1998
Impaired Water Notes
New Fish Data; Water delisted 2006. General fish consumption advisory only, not specific advisory
Date
4/1/2008