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Superfund Sites

Congress passed the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) in 1980. The word Superfund comes from a provision in the original CERCLA that raised funds for cleanups through imposition of a tax on certain petroleum and chemical companies. CERCLA gives EPA the authority to investigate and address threats posed by abandoned hazardous waste sites. It also gives EPA the authority to identify parties responsible for the contamination and compel them to pay costs associated with cleanups and risk reduction.

As part of the Superfund process, investigators collect samples of soil and groundwater at, and usually in the vicinity of, sites under evaluation, looking for hazardous chemicals. Of particular interest are chemicals that have or may reach receptors (e.g., drinking water wells or residential yards). Information about site-related chemicals and receptors goes into a complex formula, called the hazard ranking system (HRS), that generates a score for each site.

Sites with scores of 28.5 or higher may go on the National Priority List (NPL). However, there are many Superfund sites that are not on the NPL. Some proceed under the Superfund Alternative Approach. Others proceed under state supervision, or achieve cleanup through an emergency action that results in immediate removal of contamination. The ultimate goal of all of the processes is to implement a remedy that adequately addresses risks associated with the chemical release at a site. EPA removes sites that have adequately addressed risk from the NPL, a process called delisting

The adjacent links connect to pages with alphabetical lists of Superfund sites in each state; those lists in turn contain links to EPA information on the sites. Sometimes I've summarized additional information about the location of sites, relevant chemicals, and other details. EPA moves their web pages regularly, and I sometimes have trouble keeping up. If you find dead links, please let me know. Thanks!

Alabama Superfund Sites
Alaska Superfund Sites
Arizona Superfund Sites
Arkansas Superfund Sites
California Superfund Sites
Colorado Superfund Sites
Connecticut Superfund Sites
Delaware Superfund Sites
District of Columbia Superfund Sites
Florida Superfund Sites
Georgia Superfund Sites
Hawaii Superfund Sites
Idaho Superfund Sites
Illinois Superfund Sites
Indiana Superfund Sites
Iowa Superfund Sites
Kansas Superfund Sites
Kentucky Superfund Sites
Louisiana Superfund Sites
Maine Superfund Sites
Maryland Superfund Sites
Massachusetts Superfund Sites
Michigan Superfund Sites
Minnesota Superfund Sites
Mississippi Superfund Sites
Missouri Superfund Sites
Montana Superfund Sites
Nebraska Superfund Sites
Nevada Superfund Sites
New Hampshire Superfund Sites
New Jersey Superfund Sites
New Mexico Superfund Sites
New York Superfund Sites
North Carolina Superfund Sites
North Dakota Superfund Sites
Ohio Superfund Sites
Oklahoma Superfund Sites
Oregon Superfund Sites
Pennsylvania Superfund Sites
Rhode Island Superfund Sites
South Carolina Superfund Sites
South Dakota Superfund Sites
Tennessee Superfund Sites
Texas Superfund Sites
Utah Superfund Sites
Vermont Superfund Sites
Virginia Superfund Sites
Washington Superfund Sites
West Virginia Superfund Sites
Wisconsin Superfund Sites
Wyoming Superfund Sites