Barron County, Wisconsin
LC10
2104500
79.48
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This water was originally listed in 1998 due to eutrophication impairment caused by excess total phosphorus and TSS.
Desair Lake was evaluated for phosphorus and algae every two years between 1998 and 2024. Phosphorus levels were found to be too high, which was reflected in algal blooms. This lake is covered by a restoration plan: A Water Quality Strategy for the Land and Waters of the Red Cedar River Basin Nine Key Plan (expires 2026).Pollutant
Total Phosphorus
Listed For
Recreation
Impairments
Excess Algal Growth, Eutrophication
Current Use
Restricted Recreation
Listing Status
303d Listed
Attainable Use
Recreation
Priority
Low
Designated Use
Recreation
303(d) ID
106
Listing Date
4/1/1998
Impaired Water Notes
This water was assessed during the 2018 listing cycle; new total phosphorus and chlorophyll sample data exceeded 2018 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use.
Date
7/10/2017
Impaired Water Notes
This water was assessed during the 2012 listing cycle, and total phosphorus sample data exceed 2012 WisCALM listing criteria for the fish and aquatic life and recreation uses. Chlorophyll data from the period 2006-2010 did not exceed listing thresholds for either the fish and aquatic life or recreation uses, as per 2012 WisCALM. However, review of recent and historic chlorophyll data and user perception survey results confirm the recreation use impairment (91% of samples from the past ten years exceeded the listing threshold of 10ug/L).
Date
6/14/2011
Impaired Water Notes
This water was assessed during the 2014 listing cycle; total phosphorus and chlorophyll-a sample data exceed 2014 WisCALM listing criteria for recreation use.
Date
3/21/2014
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, but not Fish and Aquatic Life use, and chlorophyll data exceeds both REC and FAL thresholds.
Date
10/12/2015
Impaired Water Notes
This water was assessed during the 2020 listing cycle; total phosphorus and chlorophyll sample data exceeded 2020 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use. This lake is covered by the following restoration plan and was classified as Category 5W as a result: Implementation Plan for the Lake St. Croix Nutrient Total Maximum Daily Load (2025).
Date
7/24/2019
Impaired Water Notes
This lake is covered by the following restoration plan and was classified as Category 5W as a result: A Water Quality Strategy for the Land and Waters of the Red Cedar River Basin - Nine Key Element Plan (2026).
Date
2/20/2020
Impaired Water Notes
This water was assessed during the 2022 listing cycle; total phosphorus and chlorophyll sample data exceeded 2022 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use.
Date
5/25/2021
Pollutant
Sediment/Total Suspended Solids
Listed For
Fish and Aquatic Life
Impairments
Eutrophication
Current Use
Unsupported Aquatic Life
Listing Status
303d Listed
Attainable Use
Default - Fish and Aquatic Life
Priority
Low
Designated Use
Default - Fish and Aquatic Life
303(d) ID
106
Listing Date
4/1/1998
Impaired Water Notes
This lake is covered by the following restoration plan and was classified as Category 5W as a result: A Water Quality Strategy for the Land and Waters of the Red Cedar River Basin - Nine Key Element Plan (2026).
Date
7/24/2019