Superfund sites by state

As of Oct 26, 2026, EPA's Superfund National Priorities List (NPL) has 1,316 final, 37 proposed and 454 deleted sites in the 50 states and DC (1,337 final sites counting US territories). New Jersey (115), California (97), and Pennsylvania (91) have the most final sites; North Dakota has none. Each state page lists every site with its county, status and dates, on a map.

Superfund sites in each state

NPL counts as of Oct 26, 2026. Open tank leaks are open leaking underground storage tank releases in EPA records; later releases may be missing and some states report status differently. Brownfields are properties that received EPA Brownfields grant funding.

What the NPL statuses mean

Final NPL

A site is placed on the National Priorities List after Hazard Ranking System screening, a public comment period on the proposal, and EPA's response to the comments. EPA calls the NPL primarily an information and management tool that guides which sites warrant further investigation.

Proposed

EPA has proposed the site for the NPL and published the proposal for public comment; it is not on the final list until EPA adds it after addressing the comments.

Deleted

EPA may delete a final NPL site when it determines that no further response is required to protect human health or the environment (40 CFR 300.425(e)). Deleted sites remain eligible for further Superfund-financed remedial action if future conditions warrant it.

Or try the free Superfund sites near me lookup. This is a records search, not a Phase I Environmental Site Assessment. It does not satisfy All Appropriate Inquiries (40 CFR Part 312) or ASTM E1527-21, and no site visit or interviews were performed.

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