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C A M B R I A <br /> .rug -2 <br /> PM 2: 04 <br /> S t,N !D to 0 41 May 31, 2005 <br /> NVll't(�igMLNfAL <br /> Ms Vicki Mc Cartney HEALTH D-ti'AR TRENT <br /> San Joaquin County Environmental Health Department �� <br /> 304 East Weber Avenue, 3`d Floor ,r <br /> Stockton, California 95202 <br /> Re Groundwater Monitoring Report— Second Quarter 2005 <br /> Former Shell Service Station <br /> 1071 North Main Street <br /> Manteca, California <br /> s <br /> SAP Code 135570 <br /> Incident No 98995643 <br /> SJCEHD Site Code 506313 <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 2005 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 an <br /> area well survey map (Figure 1) and a groundwater contour/chemical concentration map <br /> (Figure 2) In addition to the scheduled analyses, the samples were analyzed for additional fuel <br /> oxygenates Blaine's report, presenting the laboratory report, is included as Appendix A <br /> ANTICIPATED THIRD QUARTER 2005 ACTIVITIES <br /> Blaine will gauge and sample the site wells and tabulate the data Cambria will prepare a <br /> groundwater monitoring report <br /> CONCLUSIONS AND RECOMMENDATIONS <br /> No gasoline constituents were detected in groundwater samples during this quarter's monitoring <br /> event As suggested by San Joaquin County Environmental Health Department, we will be <br /> Cambria <br /> Environmentalevaluating this site for case closure <br /> 6nology,Inc <br /> 270 Perkins Street <br /> Sonoma CA 95476 <br /> Tel(707)935-4850 <br /> Fax(707)935-6649 <br />