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REVISED CLOSURE SUMMARY REPORT Mid-Cal Leasing 1649 East Channel Street Stockton, California October 1994 t 1.0 INTRODUCTION ' In accordance with a request from Mr Ed GotelIi of Mid-Cal Leasing (MCL), Geological Audit Services, Inc. (GeoAudit) has prepared this revised Closure Summary Report (CSR) ' for the property located at 1649 East Channel Street in Stockton, California (the site) Included in this report is a complete history of tank removal, assessment and remediation activities at the site The site is located in a flat, commercial/light industrial area of central Stockton The site is currently vacant and undeveloped A residential area is located northeast of the site The ' Iocation of the site is illustrated in Figure 1 A pian of the site is illustrated in Figure 2 2.0 REMOVAL OF UNDERGROUND STORAGE TANK'S 2.1 Tank Removal, October 1988 ' One 8,000-galIon diesel tank and one 10,000-gallon diesel tank were removed from the site on October 7, 1988 by Jim Thorpe Oil, Inc (JTO) The tanks were located on the eastern ' portion of the site, near the property line (see Figures 2 and 3) Two soil samples were collected from beneath each tank The samples were collected and analyzed by representatives of Canonie Environmental of Stockton, California The analytical results ' from the UST removal are summarized in Table 1 The analytical results and chain-of- custody are included in Appendix A The approximate locations of the soil samples are ' illustrated on Figure 3 2.2 Excavation and Disposal of Hydrocarbon Impacted Soil Hydrocarbon impacted soil was encountered during the tank removal The impacted soil was excavated from the tank cavity by JTO and seven soil samples were collected (Table 2). ' According to JTO approximately 350 cubic yards of hydrocarbon impacted soil were removed from the excavation and stockpiled on-site Laboratory results of the soil samples are included in Appendix B Oeobpnl Au4t Sew.era Ine Md Gt R-" 60094 r ' rr