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+cy <br /> Condor Earth 'Technologies, Inc. <br /> 21663 Brian Lane Sonora CA 95370 (209)532-0361 <br /> 188 Frank West Circle Suite 1 Stockton CA 95206 (209)234-0518 <br /> 1739 Ashby Road Suite B Merced CA 95348 (209)388-9601 <br /> April 7,2005 Condor Project No.3761C <br /> FOURTH QUARTER 2004 GROUNDWATER MONITORING REPORT <br /> Site Address: Boyett Petroleum � �� <br /> 419 S. Main Street �' <br /> Manteca, California ENV', ,LN i HEALTH <br /> Client: Dale Boyett PERMIT/SERVICES <br /> Boyett Petroleum <br /> P.O. Box 576277 <br /> Modesto, CA 95357 <br /> Primary Agency: Jeffrey Wong, San Joaquin County Environmental Health Department (SJCEHD) <br /> Copy to: James Barton, California Regional Water Quality Control Board, Central Valley <br /> . Region(CRWQCB) <br /> This fourth quarter 2004 groundwater monitoring report includes a description of groundwater monitoring <br /> conducted by Condor Earth Technologies, Inc. (Condor) at the above referenced Site (Figure 1, attached) <br /> on December 29, 2004. This report has been submitted to the SJCEHD and the CRWQCB as indicated <br /> above. The following are shown in Figures 1 through 5, which are attached to this report: <br /> • Site location <br /> • Site map <br /> • groundwater elevation contours <br /> • historical groundwater gradients <br /> • shallow monitor well methyl tertiary-butyl ether(MTBE) isoconcentration contours <br /> Also attached are the following: <br /> • Site background information <br /> • historicaI groundwater monitoring data <br /> • groundwater monitoring field forms <br /> • laboratory analytical results <br /> FIELD OBSERVATIONS <br /> On December 29, 2004, a Condor representative was on Site to measure water levels and collect <br /> groundwater samples from monitoring wells MW-2, MW-3, MW-4R, MW-6 through MW-11, and EW-1. <br /> The locations of the monitoring wells are shown in Figure 2, attached. Field observations included water <br /> 4M <br /> 1� CONDOR <br /> L <br />