Impaired Water - Spider Lake (Spider - Clear Lake)
Sawyer County, Wisconsin
UC22
2435700
1,194.32
Condition has remained stable; water is not impaired.
Notes
Spider Lake was placed on the impaired waters list due to mercury in fish tissue from 1998 to 2014. Samples showed this lake is covered by the general mercury fish consumption advisory. This lake was evaluated for phosphorus and algae every two years between 2014 and 2022 and these showed a healthy system. Aquatic plant communities were evaluated in two separate years, 2012 and 2017, and were in good condition. This lake is on the Healthy Waters List.
Listing Details
Pollutant
Mercury
Listed For
Impairments
NA
Current Use
Listing Status
Water Delisted
Attainable Use
Priority
Delisted 2014
Designated Use
303(d) ID
2008-29
Listing Date
4/1/2008
Impaired Water Notes
Listed for the pollutant Hg and contaminated fish tissue due to atmospheric deposition.
Date
11/26/2007

Impaired Water Notes
New data indicates need for listing. WBIC 2435700, T42 R07W S23. 2003/2005 FC Advice-- general. Reviewed in 2004 and 2005 and no change warranted. 2006: New walleye data from GLIFWC. Add lake, change to -do not eat- WE >24 ( 0.66 pm at 18.3 and 1 ppm at 23.9).
Date
4/1/2006

Impaired Water Notes
Proposed for delisting in 2014 assessment cycle because new information indicates that a general consumption advisory applies rather than a specific advisory.
Date
1/13/2014