Impaired Water - Boulder Lake (Boulder Lake)
Vilas County, Wisconsin
UC16
2338300
515.63
Condition has remained stable; water is not impaired.
Notes
Boulder Lake was on the 303(d) list due to mercury from 1998 to 2006. New data verfiy general fish consumption advisory only, not specific advisory.

Assessments of new chlorophyll data during the 2020 listing cycle showed good condition of Aquatic Life and Recreation uses.
Listing Details
Pollutant
Mercury
Listed For
Impairments
NA
Current Use
Listing Status
Water Delisted
Attainable Use
Priority
Delisted 2006
Designated Use
303(d) ID
56
Listing Date
4/1/1998
Impaired Water Notes
New data verfiy general fish consumption advisory only, not specific advisory
Date
4/1/2008