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rat rl <br /> CAMBRIA <br /> RECENEDD <br /> NOV 0 5 ?6ber 27,2004 <br /> Mr Jeffrey Wong <br /> ENVI4 <br /> RpNM <br /> San Joaquin County Environmental Health Department PERMIT/S R ��CTH <br /> 304 East Weber Avenue, Third Floor S <br /> Stockton, California 95202 <br /> Re Groundwater Monitoring Report--Third Quarter 2004 <br /> Shell-branded Service Station <br /> 4315 Waterloo Road <br /> Stockton, California <br /> SAP Code 136143 <br /> Incident No 98996183 <br /> SJCEHD Code 1760 <br /> Dear Mr Wong <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 /> • THIRD 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 In addition to the <br /> existing sampling protocol, the groundwater sample from well MW-1 was also analyzed for ethyl <br /> tert-butyl ether (ETBE), di-isopropyl ether (DIPE), tert-amyl methyl ether (TAME), and ethanol, <br /> samples from wells MW-2, MW-3 and MW-4 were also analyzed for ETBE, tert-butyl alcohol, <br /> DIPE, TAME, and ethanol Cambria prepared a site vicinity/receptor survey map (Figure 1) and <br /> a groundwater contour/chemical concentration map (Figure 2) Blaine's report, presenting the <br /> laboratory report, is included as Appendix A <br /> Cambria received San Joaquin County Environmental Health Department's (SJCEHD's) <br /> August 26, 2004 letter requesting a work plan Cambria submitted a Site Investigation Work <br /> Plan on September 17, 2004 <br /> Cambria ANTICIPATED FOURTH QUARTER 2004 ACTIVITIES <br /> Environmental <br /> Technology,inc As proposed in the work plan discussed above, Cambria will schedule the field work upon <br /> 0 0 Hollis Street receiving SJCEHD approval and the appropriate drilling permit <br /> Suite A <br /> Emeryville CA 94608 <br /> Tel(510)420-0700 <br /> Fax(510)420-9170 <br />