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LFR Inc. • Section 2.0 discusses the preliminary Remedial Investigation/Feasibility Study (RI/FS) conducted by the Superfund Technical Assessment Response Team (START) and Ecology and Environment, Inc. (EEI). • Section 3.0 provides a list of previously submitted site-related documents, prepared by LFR (or as noted), that summarize activities conducted at the Site to date. • Section 4.0 discusses the site geology and hydrogeology. • Section 5.0 provides a summary of work completed to date, including removal action activities, confirmation soil sampling, health and safety air monitoring, waste transportation and disposal, and site restoration. • Section 6.0 provides a summary of the exceptions to the RAP. • Section 7.0 provides an evaluation of groundwater beneath the Site and downgradient from the Site. • Section 8.0 provides a risk assessment summary. • Section 9.0 provides a summary and recommendations. • Section 10.0 provides the list of references used in this document. • Appendix A presents copies of previously submitted reports. • Appendix B presents digital copies of project-related photographs and recorded videos provided by LFR and the CIWMB. • Appendix C presents previously submitted figures depicting confirmation soil sampling results. • Appendix D presents Health and Safety Air Sampling Results Reports by SBES and NES. • Appendix E presents digital copies of the altered tire, Class I, and Class II waste manifests as provided by SCI. 1.2 Remedial Action Plan The RAP for the Site provides an evaluation of five proposed remedial alternatives to meet the remedial action objective (RAO). Contamination associated with the burn piles included ash, burned material, and pyrolytic oil- and metals-affected soil. Each alternative was evaluated in the RAP using the criteria specified in the National Contingency Plan (NCP) and U.S. EPA guidance (U.S. EPA 1988). 1.2.1 Remedial Action Objective The RAO for the Site was to remove or mitigate the source of contamination associated with burned material present at the Site to provide immediate protection to human health and the environment. To meet this objective, the RAP was developed to remove Class I non-Resource Conservation and Recovery Act (-RCRA) hazardous waste, Class II designated waste, and discolored soil from the Site for off-site disposal. Page 2 rpt-RA_summ-Nov06-final-09025:FNC