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CAMBRIA <br /> October 11, 2000 <br /> Mr. Ron Rowe <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 E. Weber Avenue, Third FIoor <br /> Stockton, California 95202 <br /> Re: Groundwater Monitoring Report - Third Quarter 2000 <br /> Shell-branded Service Station <br /> 620 West Charter Way <br /> Stockton, California <br /> SAP Code 136147 <br /> Incident No. 98996187 <br /> Dear Mr. Rowe: <br /> Cambria Environmental Technology, Inc. (Cambria) prepared this report on behalf of Equiva <br /> Services LLC in accordance with quarterly reporting requirements issued by the Central Valley <br /> Regional Water Quality Control Board and San Joaquin County Public Health Services. <br /> THIRD QUARTER 2000 ACTIVITIES <br /> Blaine Tech Services, Inc. (Blaine) of San Jose, California gauged and sampled all wells and <br /> prepared a summary table of field gauging data and gasoline constituents. Cambria prepared a <br /> site vicinity map (Figure 1) and a groundwater contour map (Figure 2). Blaine's report, <br /> presenting the laboratory report and supporting field notes, is included as Appendix A. <br /> ANTICIPATED FOURTH QUARTER 2000 ACTIVITIES <br /> Blaine will gauge and sample all wells and tabulate the data. In addition to the existing scope <br /> of work, the groundwater sample from well MW-8 will also be analyzed for <br /> 1,2-dichloroethane to confirm the detection during the second quarter 2000 sampling event. <br /> Oakland, CA Cambria will prepare a groundwater monitoring report. <br /> San Ramon, CA <br /> S on o m a, CA REMEDIATION SUMMARY <br /> Portland, OR <br /> A soil vapor extraction (SVE) system operated at this site from September 1992 to <br /> Cambria November 1996. During this time the SVE system removed approximately <br /> Environmental g � Y pproximatel 17,628 pounds <br /> Technology,Inc. of vapor phase total purgeable hydrocarbons as gasoline from the subsurface. <br /> O.Tkins Street <br /> P.O.Box 259 <br /> Sonoma,CA 95476 <br /> Fel(707)935-4850 <br /> Fax(707)935-6649 <br />