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'O-'E C E�W E 10 <br /> C A M B R I A FEB 052004 <br /> ENVIRONMENT HEALTH <br /> PERMIT/SERVICES February 2, 2004 <br /> Ms Lori Duncan <br /> San Joaquin County Environmental Health Department <br /> 304 East Weber Avenue,Third Floor <br /> Stockton, California 95202 <br /> Re Groundwater Monitoring Report— Fourth Quarter 2003 <br /> Shell-branded Service Station <br /> 7910 Lower Sacramento Road <br /> Stockton, California <br /> SAP Code 136139 <br /> Incident No 98996180 <br /> SJCEHD Site Code 1660 <br /> Dear Ms Duncan <br /> Cambria Environmental Technology, Inc (Cambria) 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 /> FOURTH QUARTER 2003 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 petroleum hydrocarbon and methyl tertiary <br /> butyl ether concentrations Cambria prepared a site vicinity map (Figure 1) and a groundwater <br /> contour/chemical concentration map(Figure 2) Blaine's report, presenting the laboratory report, <br /> is included as Appendix A <br /> ANTICIPATED FIRST QUARTER 2004 ACTIVITIES <br /> Cambria received San Joaquin County Environmental Health Department's January 12, 2004 <br /> letter requesting an updated well receptor survey prior to considering this site for closure <br /> Oakland CA Cambria will submit the requested survey under separate cover <br /> San Ramon CA <br /> Sonoma C A Blaine will gauge and sample the site wells according to the existing sampling schedule and <br /> Cambria tabulate the data Cambria will prepare a groundwater monitoring report <br /> Environmental <br /> Technology,Inc <br /> eerkins Street <br /> P 0 Box 259 <br /> Sonoma CA 95476 <br /> Tel(707)935-4850 <br /> Fax(707)935-6649 <br />