Impaired Water - Oconto River (Oconto River)
Oconto County, Wisconsin
GB03
440200
9.94 - 14.16
4.22
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
Part of the Green Bay TMDL (includes Green Bay below Marinette and the Fox, Oconto, Peshtigo, and Menominee Rivers from their mouths to the first dam); also on proposed NR104 phase II list (CW Addition, DO limitation).

Assessments during the 2020 listing cycle showed new temperature and bug sample data were in good condition.
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
173
Listing Date
4/1/1998