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P , <br /> CAM BRIA <br /> April 27, 2004 <br /> Ms Victoria McCartney <br /> San Joaquin County Environmental Health Department <br /> 304 E Weber Avenue, Third Floor <br /> Stockton, California 95202 <br /> Re Groundwater Monitoring Report - First Quarter 2004 <br /> Shell-branded Service Station <br /> 620 West Charter Way Hr-F <br /> ���„��� ��Stockton, California [ f D <br /> SAP Code 136147 <br /> Incident No 98996187 MAY 0 3 2004 <br /> SJCEHD Site Code 1058124 <br /> ENVIRUNivit:NT hLALTH <br /> Dear Ms McCartney PERMIT/SERVICES <br /> Cambria Environmental Technology, Inc (Cambna) prepared this report on behalf of Equilon <br /> Enterprises LLC dba Shell Oil Products US (Shell) in accordance with the quarterly reporting <br /> requirements of 23 CCR 2652d <br /> • FIRST QUARTER 2004 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 and laboratory analytical data Cambria prepared a <br /> site vicinity/well survey map (Figure 1), and a groundwater contour/chemical concentration map <br /> (Figure 2) Blaine's report,presenting the laboratory report, is included as Appendix A <br /> ANTICIPATED SECOND QUARTER 2004 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 /> HISTORICAL REMEDIATION SUMMARY <br /> A soil vapor extraction (SVE) system operated at this site from September 1992 to <br /> November 1996 During this time, the SVE system removed approximately 17,628 pounds of <br /> vapor phase total petroleum hydrocarbons as gasoline from the subsurface <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 />