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l y <br /> CAMBRIA <br /> February 7, 2002 <br /> Mr Mike Infurna <br /> Ca ' <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 East Weber Street,Third Floor -- <br /> Stockton, California 95202 <br /> Re Groundwater Monitoring Report— Fourth Quarter 2001 W"f <br /> Shell-branded Service Station01 <br /> 2494 East Fremont Street w <br /> Stockton, California <br /> SAP Code 136141 <br /> Incident No 98996181 <br /> SJCPHS Site 506171 <br /> Dear Mr Infurna <br /> Cambria Environmental Technology, Inc (Cambria) prepared this report on behalf of Equiva <br /> Services LLC in accordance with quarterly reporting guidelines issued by the Central Valley <br /> Regional Water Quality Control Board and San Joaquin County Public Health Services <br /> • FOURTH QUARTER 2001 ACTIVITIES <br /> Blaine Tech Services, Inc (Blaine) of San Jose, California gauged and sampled all site wells and <br /> prepared a summary table of field gauging data and gasoline constituents Cambria compiled the <br /> additional laboratory analyses (Table 1), prepared a site vicinity map (Figure 1), and prepared a <br /> groundwater contour/chemical concentration map (Figure 2) Blaine's report, presenting the <br /> laboratory report, is included as Appendix A <br /> ANTICIPATED FIRST QUARTER 2002 ACTIVITIES <br /> Blaine will gauge and sample the site wells according to the existing sampling schedule and <br /> tabulate the data Cambria will prepare a groundwater monitoring report <br /> Oakland CA As recommended in our October 10, 2001 Site Investigation Report, we will submit a work plan <br /> San Ramon CA for further assessment at this site <br /> Sonoma CA <br /> Cambria <br /> Environmental <br /> Technology,Inc <br /> .Perkins Street <br /> P 0 Box 259 <br /> Sonoma CA 95476 <br /> Tel(707)935-4850 <br /> Fax(707)935-6649 <br />