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Great Lakes AOCs

About Rochester Embayment AOC

Map showing boundary of Rochester Embayment AOCRochester Embayment AOC Boundary Map Rochester Embayment was designated as an Area of Concern under the 1987 Great Lakes Water Quality Agreement. In 2012, EPA requested that the U.S. Fish and Wildlife Service conduct a wetlands assessment in support of delisting evaluations.

Sources of Pollution

Historic manufacturing facilities caused contamination of an unnamed tributary of Brockport Creek. PCBs, cyanide, dioxins, furans and silver have been found at the AOC. 

AOC Boundaries

The Rochester Embayment is formed by the indentation of the Monroe County, NY, shoreline between Bogus Point in the town of Parma and Nine Mile Point in the town of Webster. The northern boundary of the embayment is delineated by the straight line between these two points. The southern boundary includes approximately 6 miles of the Genesee River that is influenced by lake levels, from the river's mouth to the Lower Falls. The drainage area of the embayment totals more than 3,000 square miles. This area consists of the entire Genesee River Basin and parts of two other drainage basins, the easternmost area of the Lake Ontario West Basin and the westernmost part of the Lake Ontario Central Basin.

Beneficial Use Impairments

Beneficial Use Impairments for the Great Lakes AOCs

  • Restrictions on fish and wildlife consumption
  • Tainting of fish and wildlife flavor – REMOVED 2018
  • Fish tumors or other deformities – REMOVED 2015
  • Eutrophication or undesirable algae
  • Restrictions on drinking water consumption, or taste and odor – REMOVED 2011
  • Degradation of fish and wildlife populations
  • Beach closings
  • Degradation of aesthetics
  • Bird or animal deformities or reproduction problems
  • Added costs to agriculture or industry – REMOVED 2011
  • Degradation of benthos – REMOVED 2017
  • Degradation of phytoplankton and zooplankton populations – REMOVED 2016
  • Restriction on dredging activities – REMOVED 2019
  • Loss of fish and wildlife habitat


Restoring Rochester Embayment AOC (timeline)

Braddock Bay Wetland and Barrier Beach Restoration