Systematically conducted, well-documented treatability studies are an important component of the remedial investigation/feasibility study (RI/FS) process and the remedial design/remedial action (RD/RA) process under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). The guide, which presents information on treatability studies involving chemical dehalogenation of soils and sludges, is intended to supplement the information in the final generic guide. The guide describes a three-tiered approach for conducting treatability studies, which consists of (1) remedy screening, (2) remedy selection, and (3) remedial design/remedial action. The purpose of remedy-screening studies for chemical dehalogenation technologies is to determine if the technology is chemically feasible for the contaminants/matrix of concern. The guide also presents detailed, technology-specific information on the preparation of a Work Plan and a Sampling and Analysis Plan for chemical dehalogenation treatability studies. Elements discussed include test objectives, experimental design and procedures, equipment and materials, sampling and analysis procedures, quality assurance/quality control procedures, and data analysis and interpretation.

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