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18CAMBRIA <br /> There are two groundwater monitoring wells onsite (MW-5 and MW-8) and one offsite well in <br /> the bicycle lane of West Kettleman Lane (MW-6) These wells are currently sampled monthly <br /> and a quarterly sampling event is coordinated with the former Chevron station located across <br /> Kettleman Lane from the subject site <br /> The soil investigations discussed above have demonstrated that the residual petroleum <br /> hydrocarbons and MTBE in soil are limited to the northwestern dispenser area This area was <br /> over-excavated following UST, dispenser, and piping removals in February 1999, and the impact <br /> is delineated by borings MW-6, SB-1, SB-3 through SB-5, and SB-9 (boring locations shown on <br /> Figure 2) Further excavation was not deemed possible due to the canopy and dispenser <br /> facilities Therefore, Cambria proposed soil vapor extraction (SVE) to remediate the residual <br /> petroleum hydrocarbons, and specifically MTBE, in vadose soil in the northwestern dispenser <br /> island area The results of these activities are presented below <br /> SOIL VAPOR EXTRACTION WELL INSTALLATION <br /> Two soil borings (VE-1 and VE-2) were drilled at the locations shown on Figure 2 These wells <br /> • are located near borings MW-5 (SB-2) and SB-6, which are near the presumed source area and <br /> contained the highest MTBE concentrations in soil <br /> Personnel- Cambria geologist Aubrey Cool directed the field activities, <br /> working under the supervision of California Registered <br /> Geologist Joe Neely <br /> Permits: Well permit No 0024476 was obtained from SJCPHS/EHD <br /> (Appendix A) Equilon obtained an access agreement with the <br /> subject site property owners <br /> Drilling Company• Gregg Drilling & Testing, Inc of Martinez, California <br /> (C57 License No 485165) <br /> Drilling Date November 16,2001 <br /> Drilling Method 10-inch hollow-stem augers <br /> 1346 3 <br />