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r t <br /> � w <br /> A M B R I A �00H <br /> February 2, 2005 <br /> Mr Jeffrey Wong <br /> San Joaquin County Environmental Health Department <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, California 95202 <br /> Re Groundwater Monitoring Report —Third Quarter 2004 <br /> Former Shell Service Station/Econo Gas <br /> 880 Victor Road <br /> Lodi, California <br /> SAP Code 135446 <br /> Incident No 98995526 <br /> SJCEHD Site Code 1746 <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 Cambria prepared a site <br /> vicinity/well survey map (Figure 1) and a groundwater contour/chermeal concentration map <br /> (Figure 2) Blaine's report, presenting the laboratory report, is included as Appendix A <br /> ANTICIPATED FOURTH QUARTER 2004 ACTIVITIES <br /> Blaine will gauge and sample all wells and tabulate the data Cambria will prepare a groundwater <br /> monitoring report <br /> Cambria received San Joaquin County Environmental Health Department's October 27, 2004 letter <br /> requesting additional assessment and remedial activities As discussed in Cambria's <br /> December 29, 2004 letter, Shell is currently requesting pre-approval of costs for the remedial <br /> Cambria activities We will add analysis for biodegradation parameters in wells MW-4, MW-7, and MW-8 <br /> Environmental beginning with the first quarter 2005 sampling event, and Cambria shows the revised locations for <br /> Technology,Inc proposed wells MW-12 and MW-13 on Figure 2 <br /> 00 Hollis Street <br /> Suite A <br /> Emeryville CA 94608 <br /> Tel(510)420-0700 <br /> Fax(510)420-9170 <br />