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L� .DISPENSER UPGRADE SOIL SAMPLE RESULTS Collegeville Market and Cafe 13251 East Mariposa Road Stockton,California June 10,2002 1.0 INTRODUCTION Oil Equipment Service (OES) removed two product dispensers and excavated under each at the Collegeville Market and Cafe (site), located at 13251 East Mariposa Road in Stockton, California(Figure 1, Appendix A). Soil samples were collected from beneath the product dispensers on May 7, 2002. Condor Earth Technologies, Inc. (Condor) was retained by OES to provide sampling and reporting services. This report includes a description of the fieldwork, discussion of the laboratory analyses, and conclusions and recommendations based on the laboratory analytical results of the soil samples. 2.0 DISPENSER REMOVAL OES removed the two product dispensers as required to retrofit the dispensers with fiberglass product containment basins. The locations of the dispensers are shown in Figure 2, Appendix A. Condor personnel on site made field observations and collected soil samples from beneath the dispensers. Michelle Sterni-Le of the San Joaquin County Public Health Services/Environmental Health Department (PHS/EHD) was on site to observe the removal activities and to specify soil sampling locations and respective laboratory analyses. The product dispensers and fill material to approximately four feet below the ground surface were removed, exposing the associated product piping. 3.0 SOIL SAMPLING Following the removal of the northwest (NW) and southeast (SE) dispensers, one soil sample was collected beneath each dispenser on May 7, 2002, from locations selected by Michelle Sterni-Le of the PHS/EHD. The soil sampled beneath the dispensers generally consisted of light to medium brown silty sand. The soil samples were collected from undisturbed soil approximately two feet beneath the dispenser supply piping, at the locations shown on Figure 2, Appendix A. Groundwater was not encountered in the excavation. The soil samples collected from beneath the dispensers were obtained by manually driving a clean brass tube into freshly exposed areas of the excavation. The ends° of the soil filled sample tube were immediately covered with Teflon© sheeting, closed with plastic end caps, labeled, and placed in a cooler chilled with ice. The soil samples were delivered under chain-of custody protocol to Argon Laboratories in Ceres, California for analyses. n �i CONDOR i