List of Superfund sites

Superfund sites are polluted locations in the United States requiring a long-term response to clean up hazardous material contaminations. They were designated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) of 1980. CERCLA authorized the United States Environmental Protection Agency (EPA) to create a list of such locations, which are placed on the National Priorities List (NPL).[1]

A map of Superfund sites as of October 2013. Red indicates currently on final National Priority List, yellow is proposed, green is deleted (usually meaning having been cleaned up).

The NPL guides the EPA in "determining which sites warrant further investigation" for environmental remediation.[2] As of August 17, 2022, there were 1,329 Superfund sites on the National Priorities List in the United States.[2] Forty-three additional sites have been proposed for entry on the list, and 452 sites have been cleaned up and removed from the list.[2] New Jersey, California, and Pennsylvania have the most sites.[3]