Superfund Cleanup Subject Listing

Potentially Responsible Parties (PRP) Searches

This category includes information on how EPA identified parties associated with the contamination at a Superfund site.

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Transmittal of Preliminary Potentially Responsible Party Search Completion Measure Definition for Incorporation into the Superfund Program Implementation Manual for FY2012 - (6/23/11)
Guidance to regions on documenting preliminary PRP search completion activities
https://www.epa.gov/enforcement/guidance-preliminary-prp-search-completion-measure-definition-and-superfund-program (PDF 338K)
PRP Search Documentation Summary Requirements for Decision Documents to Not Pursue Cost Recovery Where Unaddressed past Costs are Greater Than $200,000 - (3/8/11)
Guidance establishing standard and mandatory PRP search documentation requirements in decision documents.
https://www.epa.gov/enforcement/guidance-documenting-prp-search-decision-documents-and-unaddressed-cost-recoveries (PDF 353K)
EPA's Continued Efforts to Enhance CERCLA Cost Recovery - (7/2/10)
Memorandum highlights important cost recovery practices and encourages Regions to reevaluate their Superfund cost recovery programs.
https://www.epa.gov/enforcement/guidance-efforts-enhance-cercla-cost-recovery (PDF 267 K)
PRP Search Manual - 2009 (including 2011 addendum) Edition Amended - (9/30/09)
2011 version of the 2009 edition of the PRP search manual with an updated Appendix 6 which informs users of the information sources to locate PRPs. (Updated appendix 6 - PRPPIIS)
https://www.epa.gov/enforcement/report-prp-search-manual-2009-edition-2011-addendum (PDF 17,253 K)
Model Application/Information Request for the Service Station Dealer Exemption under Section 114(c) of CERCLA - (11/8/04)
Transmittal memorandum and model language document application/information request for service station dealers exemption under CERCLA
https://www.epa.gov/enforcement/model-applicationinformation-request-service-station-dealer-exemption-under-cercla (PDF 55 K)
Transmittal of Guidance on Issuing CERCLA Section 104(e)(2) Information Requests to Federal Agencies at Privately-owned Superfund Sites - (6/14/04)
Guidance on information requests to federal agencies at privately-owned superfund sites. Attachment A contains the list of federal PRP points of contacts dated October 2003.
https://www.epa.gov/enforcement/guidance-issuing-superfund-104e2-information-requests-federal-agencies-privately-owned (PDF 126 K)
Transmittal of Sample Documents for More Effective Communication in CERCLA Section 104(e)(2) Information Requests - (6/30/95)
Samples intended to address concerns raised by past recipients of information request letters to more effectively convey our initial information requests to recipients & encourage a more complete response from the recipients of initial information request
https://www.epa.gov/enforcement/guidance-sample-documents-effective-communication-under-cercla-section-104e (PDF)
Revised Policy on Discretionary Information Release Under CERCLA - (3/31/93)
The purpose of the revised CERCLA information release policy is to minimize potential impediments to facilitating PRP organization and coalescence. OSWER Directive 9835.12-01a.
https://www.epa.gov/enforcement/guidance-discretionary-information-releases-under-superfund (PDF 168 K)
Final Guidance on Preparing Waste-in Lists and Volumetric Rankings for Release to Potentially Responsible Parties (PRPs) under CERCLA (Waste-in Guidance) - (2/22/91)
Provides guidance on the compilation and release of waste-in lists and volumetric rankings to help you comply with the information release requirements of CERCLA section 122 (e) and the information release and exchange policies outlined in OSWER Directive
https://www.epa.gov/enforcement/guidance-preparing-waste-lists-and-volumetric-rankings-release-prps-waste-guidance (PDF 1206K)
PRP Search Supplemental Guidance for Sites in the Superfund Remedial Program - (6/16/89)
Transmittal memorandum and supplemental guidance on the PRP process for Superfund remedial sites and the content and format for PRP search reports, OSWER No. 9834.3-2a.
https://www.epa.gov/enforcement/guidance-searching-prp-and-preparing-search-reports (PDF 1705 K)
CERCLA Community Relations Mailing Lists, OSWER No. 9836.2 - (2/6/89)
Memorandum emphasizes the use of community relations mailing lists to ensure notification of PRPs.
https://www.epa.gov/enforcement/guidance-using-community-relations-mailing-lists-superfund-enforcement (PDF 193KB)
Transmittal of Guidance on Use and Enforcement of CERCLA Information Requests and Administrative Subpoenas - (8/25/88)
Guidance gives an overview of the information-gathering tools under CERCLA 104(e) and 122(e)(3)(B), and it focuses on the steps to be taken. OSWER No. 9834.4-a
https://www.epa.gov/enforcement/guidance-use-and-enforcement-cercla-information-requests-and-administrative-subpoenas (PDF 1859 KB)
Releasing Identities of Potentially of Responsible Parties in Response to FOIA Requests - (1/26/84)
The memo states EPA Policy on responding to requests under the FOIA for the names of PRPs at CERCLA sites. OSWER Dir. No. 9834.0
https://www.epa.gov/enforcement/guidance-releasing-prp-identities-foia-responses (PDF 148 K)

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