Portage County, Wisconsin
CW12
1403200
247.49
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
McDill Pond was evaluated every two-year cycle from 2016 to 2024; phosphorus and algae data indicated a healthy system. This lake is on the Waters Attaining Standards List.
This water was added to the Impaired list during the 2026 cycle due to high chlorophyll-a levels (excess algal growth) harming recreation.Pollutant
Unknown Pollutant
Listed For
Recreation
Impairments
Excess Algal Growth
Current Use
Restricted Recreation
Listing Status
Proposed for List
Attainable Use
Recreation
Priority
Low
Designated Use
Recreation
303(d) ID
2026-51
Listing Date
4/1/2026