Cleanup Enforcement

Early in the cleanup process, EPA conducts a search to find all of the potentially responsible parties (PRPs).

Under EPA's "Enforcement First" policy (PDF) (3pp, 121K, about PDF), EPA will usually ask PRPs to conduct the investigation and to perform the cleanup before using Superfund money.

EPA looks for evidence to determine liability by matching wastes found at the site with parties that may have contributed wastes to the site. EPA uses many approaches to do this research, including:

• Reviewing documents,
• Site investigation,
• Interviews,
• Using "information request letters" to gather information,
• Title searches, and
• Internet research, libraries, courthouses, and state offices.

In addition to identifying PRPs, EPA tries to determine early on:

• The nature of a party's involvement (e.g., owner, generator),
• A party's potential defenses (e.g., 3rd party defense),
• Any applicable exemptions or exclusions,
• The amount of waste a party contributed, and
• Whether the party can pay only very little or nothing at all toward the cleanup.

Guidance on EPA's information gathering authorities is available in the "Guidance on Use and Enforcement of CERCLA Information Requests and Administrative Subpoenas" (PDF) (51pp, 2,026K, about PDF) (8/25/88).

EPA's "PRP Search Manual" provides guidance on how to search for PRPs that may be liable for cleanup at a Superfund site.

The Superfund Enforcement Directory (SFED) identifies EPA staff who perform the activities for finding the PRPs. This national directory provides information on the individuals, work groups, and others who have expertise in the PRP search process and identifies EPA personnel who are involved in the site remediation enforcement process and their particular areas of expertise.

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