BRRTS Database

TOPICS BROWNFIELDS SUPPLEMENTAL DATASETS GREAT LAKES AREAS OF CONCERN

REMEDIATION AND REDEVELOPMENT DATABASE - BRRTS

The Wisconsin Department of Natural Resources (DNR) maintains a searchable database of information on activities related to property assessments and investigations, contamination, cleanup or redevelopment activities.

GREAT LAKES AREAS OF CONCERN

The U.S.-Canada Great Lakes Water Quality Agreement [exit DNR] defines an Area of Concern (AOC) as "a geographic area 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. The U.S. Environmental Protection Agency (EPA) and other state and federal agencies are working to restore AOCs in the Great Lakes basin [exit DNR], five of which are in Wisconsin and are listed below.

Name	Description	Lake
LOWER GREEN BAY/FOX RIVER AOC	The Lower Green Bay and Fox River AOC is part of the Fox Wolf Watershed. The AOC spans the last seven miles of the Lower Fox River (downstream of the De Pere Dam to the mouth) and includes 22 square miles of southern Green Bay.	Michigan
LOWER MENOMINEE RIVER AOC	The Lower Menominee River forms the boundary between the northeast corner of Wisconsin and the southern tip of Michigan’s upper peninsula, with headwaters originating in both states. The river’s main stem flows from the city of Menominee, MI, and Marinette, WI, and empties into Green Bay. All beneficial use impairments have been removed and the AOC is now delisted.	Michigan
MILWAUKEE ESTUARY AOC	The Milwaukee Estuary AOC includes Cedar Creek, the Milwaukee, Little Menomonee, Menomonee and Kinnickinnic Rivers, and the inner and outer Harbor and nearshore waters of Lake Michigan.	Michigan
SHEBOYGAN RIVER AOC	The Sheboygan River AOC encompasses 14 miles of the lower Sheboygan River downstream from the Sheboygan Falls Dam and includes the entire harbor and nearshore water of Lake Michigan.	Michigan
ST. LOUIS RIVER AOC	Draining 3,634 square miles of watershed and encompassing a 1,020 square-mile area, the St. Louis River is the second-largest U.S.-based AOC. It crosses state boundaries, including both the states of Minnesota and Wisconsin.	Superior

BRRTS data comes from various sources, both internal and external to the DNR. There may be omissions and errors in the data and delays in updating new information.