EPA National Priorities List
Type any U.S. address to see every EPA Superfund cleanup site within 25 miles. 1,380 total sites nationwide, 658 currently in active or pending cleanup.
Superfund sites are the most contaminated properties in the country — contaminated enough that the federal government has taken over or is funding the cleanup. The program was created by the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) of 1980, after the Love Canal disaster in Niagara Falls forced the evacuation of an entire neighborhood built on top of buried industrial waste.
Sites on the National Priorities List (NPL) are the highest-priority contaminated sites eligible for federal Superfund cleanup money. Getting on the NPL requires a specific hazard score based on the type of contamination, how close people live, and whether groundwater or drinking water is affected. There are about 1,380 NPL sites across all 50 states and U.S. territories.
If your address is in a metropolitan area, you will probably see multiple sites. Most of them are historical — former industrial properties, old landfills, closed military bases — and no longer pose an active exposure risk, though they may still be under long-term monitoring. Newer additions to the list often involve active groundwater contamination plumes.
Every state has at least one Superfund site. Browse all states or jump to a few of the most heavily-impacted: