Great Lakes Areas of Concern
The U.S.-Canada Great Lakes Water Quality Agreement (Annex 1 of the 2012 Protocol) defines AOCs as "geographic areas designated by the Parties where significant impairment of beneficial uses has occurred as a result of human activities at the local level." An AOC is a location that has experienced environmental degradation. EPA and other federal and state agencies are working to restore the 26 remaining U.S. AOCs in the Great Lakes basin.
Delisted AOCs
- Ashtabula River (Aug. 2021)
- Lower Menominee (Aug. 2020)
- White Lake (Oct. 2014)
- Deer Lake (Oct. 2014)
- Presque Isle Bay (Feb. 2013)
-
Oswego River (July 2006)