Resource thumbnail The National Priorities List (NPL) is the list of national priorities among the known releases or threatened releases of hazardous substances, pollutants, or contaminants throughout the United States and its territories. The NPL is intended primarily to guide the EPA in determining which sites warrant further investigation. Links to documents for the current new proposed NPL sites and new NPL sites, including: Documentation Records, Site Listing Narratives, Support Documents and other supporting documentation. Federal Register Notices for NPL Updates - Links to Federal Register notices for proposed NPL updates and NPL updates from 1982 to present.
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