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1 <br /> CAMBRIAAUGS � <br /> �1�i J �� 'Z�O200,1PERulT/SERry A �T <br /> k�� <br /> August 18, 2b04 <br /> �I�E <br /> Ms Vicki McCartney <br /> San Joaquin County Environmental Health Department <br /> 304 E Weber Avenue, Third Floor <br /> Stockton, California 95202 <br /> f <br /> Re Groundwater Monitoring Report - Second Quarter 2004 <br /> Shell-branded Service Station <br /> 620 West Charter Way <br /> Stockton, California <br /> SAP Code 136147 <br /> Incident No 98996187 <br /> SJCEHD Site Code 1058124 <br /> Dear Ms McCartney <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 /> SECOND 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 THIRD QUARTER 2004 ACTIVITIES <br /> Cambria received San Joaquin County Environmental Health Department's (SJCEHD's) <br /> July 2, 2004 letter requesting a site conceptual model (SCM) and additional groundwater <br /> oxygenate sampling As discussed during an August 13, 2004 telephone conversation with <br /> SJCEHD staff, Cambria will submit the requested SCM, which will include recommendations for <br /> additional investigation activities, by September 30, 2004 We will not drill the approved cone <br /> penetration test borings prior to submitting the SCM <br /> Cambria Blaine will gauge and sample the site wells according to the existing sampling schedule and <br /> Environmental tabulate the data Groundwater samples from all the wells will also be analyzed for methanol <br /> Technology,Inc and ethanol as requested Cambria will prepare a groundwater monitoring report ' 1, ` <br /> 0 0 Hollis Street <br /> S. <br /> , u <br /> Suite A <br /> Emeryville CA 94608 1 <br /> Tel(510)420-0700 <br /> Fax(510)420-9170 s <br />