Current NPL Updates: New Proposed NPL Sites and New NPL Sites

The National Priorities List (NPL) is updated periodically, as mandated by CERCLA (CERCLA Overview). The EPA publishes the list of NPL sites in the Federal Register. The EPA published a rule in the Federal Register on July 3, 2025, adding three sites to the NPL. 

• Federal Register Notice of the Current NPL Final Rule 90 FR 29491 (PDF), (8 pp,  289 K).

The Superfund program publishes documents with each rulemaking adding or proposing sites to the National Priorities List (NPL). Notification and listing of the sites are published in the Federal Register.

Depending on the action being taken by EPA, the Federal Register notice describes either the addition of sites to the NPL (final rule) or the proposal to add sites to the NPL (proposed rule). Notices for both actions provide a list of sites; background information about the NPL process, including information about the Superfund rules; and other site actions. The proposed rule notice also provides information about submitting comments on the sites proposed.

DISCLAIMER: The documentation records and narrative summaries provided on this page are provided for informational purposes only. The official copies of the documentation records, narrative summaries, and State concurrence letters are available at the EPA  Headquarters Superfund Docket.

New NPL Sites

The Superfund (About Superfund) program added three sites to the NPL in a rulemaking published in the July 3, 2025, Federal Register. A total of 1,343 uncontrolled hazardous waste sites are listed (National Priorities List (NPL) Sites) on the NPL. General information about site location, operations, contaminants, and site investigation activities is provided by the NPL Site Narrative at Listing.

Proposed NPL Sites

The Superfund (About Superfund) program proposed four sites to the NPL in a rulemaking published in the September 5, 2024, Federal Register (Notice of NPL Proposed Rule 89 FR 72356 (PDF)). Of the four sites proposed for listing on September 5, 2024, three sites were listed on the NPL on July 3, 2025, and one site remains proposed to the NPL. A total of 38 uncontrolled hazardous waste sites are proposed (Proposed National Priorities List (NPL) Sites) to the NPL as of July 3, 2025. General information about site location, operations, contaminants, and site investigation activities is provided by the NPL Site Narrative at Listing. The HRS Documentation Record provides in-depth information about each site that is scored using the HRS. The documents provide the basis for EPA's decision to propose sites to the NPL.

The EPA published a Notice of Data Availability in the June 3, 2025, Federal Register (Notice of Data Availability 90 FR 23505  (PDF)). A Technical Memorandum for the proposed NPL site Exide Technologies – Vernon, located in Vernon, California, has been added to the docket for this site. This Technical Memorandum provides further examination and analysis on the aquifer interconnections and attribution of contamination at the former Exide Technologies - Vernon site.

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