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CL Properties, VI E37801.02A <br /> December 6, 1999 Page 4 <br /> After completion of the soil sampling, the sampling points will be backfilled with a neat cement <br /> slurry. Backfill will be placed in one continuous operation from the bottom to the top of the <br /> borehole. <br /> Due to the nature of the sampling,no cuttings from the installation of the soil vapor sampling points <br /> will be generated. <br /> 4.2 Laboratory Testing Program: Soil vapor samples collected from the area of the former dry <br /> cleaner facility and adjacent (across West Sonora Street) current dry cleaner facility will be tested <br /> in the laboratory for halogenated volatile organic constituents (HVOCs) including, <br /> tetrachloroethylene (PCE), trichloroethylene (TCE), vinyl chloride, Stoddard solvent, and other <br /> HVOCs. Proposed preparation and analytical methods for the laboratory analyses are summarized <br /> in Table 1. <br /> TABLE 1 <br /> Preparation and Anal 'cal Methods <br /> Type of Analysis Analytical Method Method Detection Limit <br /> Soil Sample Analyses <br /> Stoddard Solvent 8260 l µg/L <br /> Halogenated Volatile Organic Compounds 8015M I to 5 µg/L <br /> (HVOCS) <br /> µg/L = micrograms per liter <br /> Star Laboratories is a California Department ofHealth Services certified hazardous waste laboratory <br /> (Certificate No. 2250) for the analyses outlined herein. A description of laboratory quality <br /> assurance/quality control procedures proposed for the analyses are described in the SOPS presented <br /> in Appendix B. <br /> 4.3 Technical Report: Upon completion of field and laboratory activities,a technical report will <br /> be prepared summarizing results and findings (including the laboratory analytical reports). <br /> Evaluations will be provided regarding the existence of HVOCs in subsurface soil. <br /> Recommendations, as warranted, will be presented to the SJCEHD for either a statement of"no <br /> further action required", or the need for additional assessment and/or remedial action. <br /> 5.0 SITE SAFETY PLAN <br /> The site safety plan for Twining personnel assigned to this project is presented in Appendix C. <br /> 6.0 LIMITATIONS <br /> The proposed work is intended to be an interactive process. Additional work may be required to <br /> more fully assess the extent of halogenated volatile organic constituent migration in soil. The <br /> purpose of a geologic/hydrogeologic study is to reasonably characterize existing site conditions <br />