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LFR Levine-Fricke Reduction of Toxicity, Mobility, and Volume through Treatment. Toxicity, mobility, and volume of pyrolytic oil-and metals-affected soil would not be reduced by treatment in this alternative. Short-Term Effectiveness. Removal of the source material would provide instant reduction of source contaminants and significant short-term effectiveness. Implementability. This alternative could be easily implemented. Cost. The total capital cost for Alternative 3 is considered moderate to high but will likely release the Site from long-term operations and maintenance obligations. These costs include excavation activities and disposal costs. Additionally, expensive treatment mechanisms would not be necessary. The present worth of operation and maintenance costs, including 30 years of monitoring and reporting, is relatively moderate to high. The total net present worth of Alternative 1 is moderate to high. Regulatory Acceptance. This alternative would be accepted by DTSC and RWQCB because it would actively remediate pyrolytic oil-and metals-affected soil. Community Acceptance. Removal and off-site disposal was the selected alternative at the Westley Tire Fire Site. The community would likely accept this alternative on the basis of input received to date from the public on the recently completed, neighboring, and similar project named the Westley Tire Fire Site (CIWMB, 2003). Alternative 4-Excavation of Pyrolytic Oil-and Metals-Affected Soil for Off-Site Disposal Following Stabilization of Metals-Affected Soil. Ash, burned material, pyrolytic oil-and metals-affected soil would be excavated. Soil containing pyrolytic oil would be directly loaded into trucks for off-site disposal. Ash and metals-affected soil would be temporarily stockpiled on site. The stockpiled soil would then be mechanically mixed with a cement based compound to stabilize the metals in the soil to a lower leachable concentration in an attempt to dispose the treated soil at a Class II landfill. Overall Protection of Human Health and the Environment. This excavation alternative offers a relatively high degree of protection to human health and the environment at the Site by removing the source of contamination. Compliance with Federal and State Requirements. As this is an interim activity, state and federal requirements will not be used to establish a final cleanup goal for the Site at this time. The Final RAP will meet final cleanup goals established after the comprehensive RI/FS is completed. However, the interim remedial action will be consistent with other state and federal requirements. Long-Term Effectiveness and Permanence. The removal of the source material, followed by on-site treatment and transportation to a Class Il landfill facility, would provide long-term effectiveness and permanence. Final_RAP_Tracy_9.18.03(final).doc Page 13