BOSTON — The U.S. Environmental Protection Agency has completed legally required five-year reviews at seven Superfund sites in Maine, New Hampshire, Connecticut and Massachusetts and found that the cleanups at each continue to protect human health and the environment, the agency said Thursday.

Federal law requires the EPA to review Superfund sites every five years after cleanup remedies are put in place. The reviews evaluate how well the cleanup is working and whether further action is needed, according to the agency. The EPA said the reviews also made recommendations for follow-up work where it was required, but the agency did not say which sites received them.

The reviews, completed during the 2026 federal fiscal year, covered five sites on the National Priorities List: the Callahan Mine in Brooksville, Maine; the Coakley Landfill in Greenland and North Hampton, New Hampshire; Durham Meadows in Durham, Connecticut; Eastern Surplus in Meddybemps, Maine; and the Savage Municipal Water Supply in Milford, New Hampshire.

Two federal facility sites were also reviewed: the Fort Devens Sudbury Training Annex, which spans Hudson, Stow, Maynard and Sudbury, Massachusetts, and the U.S. Army Materials Technology Laboratory in Watertown, Massachusetts.

EPA New England Regional Administrator Mark Sanborn said the process lets the agency make sure cleanups "are working as intended" and that communities are protected from environmental risks.

Superfund, created by Congress in 1980, pays for investigating and cleaning up the most complex, uncontrolled or abandoned hazardous waste sites in the country.

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