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10CAMBRIA Number of Borings Two soil borings were converted into SVE wells (VE-1 and VE-2) Boring and well specifications are described in Table 1 and the locations are shown on Figure 2 Boring Depths• Well borings VE-1 and VE-2 were drilled to 30 fbg Soil Sampling Methods• Soil samples were not collected from these borings Soil Disposal Approximately 2 4 tons of soil were generated during field activities, stored onsite, and covered with plastic sheeting The soil stockpile was profiled for disposal using data collected from the site during April 2001 On December 4, 2001, Manley and Sons Trucking, Inc of Sacramento, California transported the soil to Allied Waste h-idustnes' Forward Landfill in Manteca, California for disposal Well Materials: Wells VE-1 and VE-2 were constructed using four-inch diameter, Schedule 40 PVC casing with a screen slot size of 0 020-inch and#2112 Monterey sand Screened Interval: Wells VE-1 and VE-2 are screened from 15 to 30 fbg Well construction details are presented on Table 1 and recorded on the exploratory boring logs (Appendix C) SOIL VAPOR EXTRACTION TEST OVERVIEW Objective The objective of the SVE test was to evaluate the feasibility of SVE for source area remediation and to achieve interim removal of source area petroleum hydrocarbons and MTBE Personnel Cambria technician Jimmie Couch conducted the SVE testing, working under the supervision of Project Engineer Dan Lescure Protocol- Initially, Cambria performed individual short-term SVE tests on wells VE-1 and VE-2 Each test consisted of a minimum of three steps (with varied operating parameters) to determine the optimal extraction rate The optimal extraction rate is defined as the vacuum that produces the maximum sustained flow rate Normally after the short-term testing, Cambria would conduct 1346 4