Is there a Superfund site near you?
The EPA's National Priorities List marks the nation's most serious contaminated sites - the ones in the federal cleanup program. KnowYourExposure tracks every listed site and the ZIP codes within five miles of one, shown on your free ZIP report.
Quick Answers
What is a Superfund site? A place where hazardous contamination is serious enough for the federal cleanup program - old industrial plants, landfills, chemical works, military facilities. NPL listing means the EPA scored the risk and took it on.
How do I check my area? Enter your ZIP code on the KnowYourExposure homepage. If a listed site is within five miles, your report names it, with distance and status.
What proximity does and doesn't mean
Distance is measured from your ZIP's center point to the site. Being within 5 miles tells you a serious cleanup is nearby - it does not by itself mean your home, soil, or water is affected. The most common off-site pathway is a groundwater plume: municipal water near NPL sites is monitored, private wells are the ones to test.
Site status matters too: a site listed in 1984 with completed containment is a different neighbor than one proposed last year. Completed cleanups are removed from the list, and we exclude them from your report.
What to do if a site is near you
Look the site up on the EPA's Superfund directory for its contaminants and cleanup stage. If you draw private well water within a mile or two, test the well. And check what your utility actually detected at the tap - the direct evidence for your household.