Risk Assessment Guidance for Superfund Volume II Environmental Evaluation Manual Interim Final

The policies and procedures set forth here are intended as guidance to Agency and other government employees. They do not constitute rulemaking by the Agency, and may not be relied on to create a substantive or procedural right enforceable by any other person. The Government may take action that is at variance with the policies and procedures in this manual. ii Preface This document is part of a two-manual set entitled Risk Assessment Guidance for Super fund. One manual, the Environmental Evaluation Manual, provides guidance for ecological assessment at Superfund sites; the other, the Human Health Evaluation Manual, provides guidance for health risk assessment at these sites. Guidance in both areas is needed so that EPA can meet the requirements of sections 121 (b) (l) and (d) of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), namely, that selected remedial actions be protective of human health and the environment. This risk assessment guidance also can assist EPA in complying with other CERCLA directives. For example, Section 121(c) requires future reviews to ensure that human health and the environment continue to be protected at sites where contaminants remain after remedial actions were completed. The Risk Assessment Guidance for Superfund manuals were developed to be used during th