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Risk Assessment Guidance for Superfund (RAGS): Part B

  • RAGS Part A
  • RAGS Vol. III: Part A
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RAGS Part B is one of a three-part series: Part A addresses the baseline risk assessment; and Part C addresses human health risk evaluations of remedial alternatives. Part B provides guidance on using U.S.EPA toxicity values and exposure information to derive risk-based preliminary remedial goals (PRGs) for a Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) site. Initially developed at the scoping phase of an assessment using readily available information, risk-based PRGs generally are modified based on site-specific data gathered during the remedial investigation/feasibility study (RI/FS). This guidance does not discuss the risk management decisions that are necessary at a CERCLA site.

The potential users of Part B are those involved in the remedy selection and implementation process, including risk assessors, risk assessment reviewers, remedial project managers, and other decision makers.

RAGS Part B Guidance Documents

  • Table of Contents/Preface (pdf) (12/1991, EPA/540/R-92/003)
  • Chapter 1: Introduction (pdf)
  • Chapter 2: Identification of Preliminary Remediation Goals (pdf)
  • Chapter 3: Calculation of Risk-Based Preliminary Remediation Goals (pdf)
  • Chapter 4: Risk-Based PRGs for radioactive Contaminants (pdf)
  • RAGs part B references (pdf)
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      • Risk Assessment Guidance for Superfund (RAGS): Part A
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Last updated on April 22, 2019