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1.0 INTRODUCTION <br /> Conestoga-Rovers & Associates (CRA) prepared this report on behalf of Equilon <br /> Enterprises LLC dba Shell Oil Products US (Shell). <br /> 1.1 SITE INFORMATION <br /> Site Address Cordes Ranch,Tracy, CA <br /> Site Use Agricultural land <br /> Shell Project Manager Kevin Dyer <br /> CRA Project Manager Dan Lescure <br /> Lead Agency and Contact CVRWQCB,Mike Smith <br /> Shell SAP Code 805248 <br /> Shell Incident No. 7999034 <br /> 2.0 SITE ACTIVITIES AND FINDINGS <br /> 2.1 CURRENT QUARTER'S ACTIVITIES <br /> Blaine Tech Services, Inc. (Blaine) gauged and sampled the wells according to the <br /> established monitoring program for this site. This site is monitored quarterly and CRA <br /> issues groundwater monitoring reports following the sampling events. <br /> CRA prepared a vicinity map (Figure 1) a site plan showing the monitoring well <br /> locations (Figure 2), a groundwater chernical concentration map (Figure 3), and <br /> groundwater contour and chemical concentrations maps for Zones A, B, and C, <br /> respectively (Figures 4 through 6). Table 1 presents the groundwater data. Table 2 <br /> presents the Separate Phase Hydrocarbon (SPH) recovery data. Blaine's field notes are <br /> presented in Appendix A, the laboratory report is presented in Appendix B, and the <br /> data validation report is presented in Appendix C. <br /> The groundwater samples are routinely analyzed for total petroleum hydrocarbons as <br /> crude oil (TPHc),benzene, toluene, ethylbenzene, and xylenes. Standard quality control <br /> samples (i.e. trip blank,equipment blank,duplicate)were included with the sample set. <br /> 060223(z6) 1 CONESTOGA-ROVERS&ASSOCIATES <br />