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I <br /> � It, <br /> r r1 r r4 <br /> 4 <br />� CAMBRIA <br /> FEB 1 0 2003 <br /> ENVIRONMEN i HEALTH February 5, 2003 <br /> Mr Harlin Knoll PERMIT/SERVICES <br /> San Joaquin County Environmental Health Department <br /> 304 E Weber Avenue,Third Floor <br /> Stockton, California 95202 <br /> Re Fourth Quarter 2002 Groundwater Monitoring Report and Sampling <br /> Suspension Request <br /> Shell-branded (Independent)Service Station <br /> 420 West Kettleman Lane <br /> 4 Lodi, California <br /> SAP Code 135445 <br /> Incident No 98995525 <br /> SJCEHD Site Code 19061 <br /> Dear Mr Knoll <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 i <br /> FOURTH QUARTER 2002 ACTIVITIES \r <br /> C , <br /> Blaine Tech Services, Inc (Blaine) of San Jose, California gauged and sampled all Shell site <br /> wells This quarterly sampling event was not coordinated with the former Chevron station , <br /> located at 301 West Kettleman Lane,and therefore, the Chevron data was not used in contouring <br /> The well gauging data and analytical results for the former Chevron station are included in <br /> Appendix B Blaine prepared a summary table of field gauging data and petroleum hydrocarbon <br /> and methyl tertiary butyl ether (MTBE) concentrations for the Shell site Cambria prepared a <br /> site vicinity map (Figure 1), an extended site map (Figure 2), and a groundwater <br /> contour/chemical concentration map (Figure,3) Blaine's report, presenting the laboratory <br /> reports, is included as Appendix A <br /> Y, <br /> Oakland CA During this monitoring event, no total petroleum hydrocarbons as gasoline, benzene, or methyl <br /> San Ramon CA tertiary butyl ether (MTBE) were detected in any of the Shell site wells Benzene and MTBE <br /> Sonoma CA data from this sampling event are presented on Figure 3 <br /> r <br /> Cambria <br /> carnbnmental Cambna submitted a No Further Action Request on December 17, 2002 <br /> EnvirTechnology,Inc <br /> e k ns Street <br /> P 0 Box 259 <br /> Sonoma,CA 95476 <br /> Tel(707)935-4850 <br /> Fax(707)935-6649 <br />