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� ye, <br /> S <br /> CAMBRIA PAPC�® <br /> Mq <br /> E/� R 0,9,? <br /> bA 249q March 3, 2004 <br /> Ms Lon Duncan <br /> San Joaquin County Environmental Health Department C <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, California 95202 <br /> Re Groundwater Monitoring Report— Fourth Qua �2003 <br /> Former Texaco Service Station/United Gas Yl� 9 <br /> 440 West Charter Way 1(7Qr� <br /> Stockton, California <br /> SAP Code 121258 <br /> Incident No 88870583 <br /> SJCEHD Site Code 1055 <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 /> t <br /> Blaine Tech Services, Inc (Blaine) of San Jose, California gauged and sampled the site wells and <br /> prepared a summary table of field gauging data and petroleum hydrocarbon and methyl tertiary <br /> butyl ether concentrations Blaine's report, presenting the laboratory report, is included as <br /> Appendix A <br /> Cambria prepared a summary table of additional groundwater analytical data (Table 1), a site <br /> vicinity/well survey map (Figure 1), and groundwater contour/chenucal concentration maps for <br /> the shallow groundwater zone (Figure 2) and for the two deeper water-bearing zones (Figures 3 <br /> and 4) Groundwater sampling at the subject site was coordinated with sampling at the Chevron <br /> service station (508 West Charter Way) and the former Arco service station (441 West Charter <br /> Way) Laboratory analytical and groundwater elevation data from the two adjacent sites is <br /> included as Appendix B <br /> Cambria <br /> Environmental <br /> Technology,Inc <br /> 10,Perkins Street <br /> P 0 Box 259 <br /> Sonoma CA 95476 <br /> Tel(707)935-4850 <br /> Fax(707)935-6649 <br />