Impaired Water - Long Lake (Long Lake (Three Lakes Chain))
Oneida County, Wisconsin
UW44
1609000
604.27
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
Long Lake is impaired for mercury in fish tissue.

Long Lake was evaluated every two-year cycle from 2014 to 2022; phosphorus, algae, and aquatic plant data indicated a healthy system.
Listing Details
Pollutant
Mercury
Listed For
Fish Consumption
Impairments
Mercury Contaminated Fish Tissue
Current Use
Specific Restricted Fish Consumption
Listing Status
303d Listed
Attainable Use
Unrestricted Fish Consumption
Priority
Low
Designated Use
Unrestricted Fish Consumption
303(d) ID
250
Listing Date
4/1/1998
Impaired Water Notes
In addition to mercury contamination, Long Lake suffers from a degraded habitat from local agricultural activity. Water has virtually disappeared from the lake due to drought and 13 nearby high capacity farm irrigation wells, which pump up to 720,000 gallons of water/day.
Date
10/20/2010