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f <br /> 1 <br /> f ADDENDUM TO CLOSURE SUMMARY REPORT <br /> MId-Cal Leasing ! <br /> t 1649 East Channel Street <br /> k Stockton, California' ', <br /> Figure 3 shows the extent of the excavation in the area the former diesel underground <br /> storage tanks (UST's) excavation and tank removal and excavation sample locations. 1 <br /> Details of the diesel tank removal and excavation are discussed.in sections.2..1 and 2.2 of <br />! the closure summary report (CSR): Analytical results for;the samples collected during <br /> the diesel tank removal are summarized on Table 1. No contamination was detected in <br /> the seven samples collected after excavation. The final excavation in the area of the <br /> former gasoline UST, the location of the tank removal samples and the location of <br /> boring B-1; installed in October 1992, is also shown on Figure 3. The gasoline UST <br /> removal is discussed in section 2.3 of the CSR. Sample results are included on Table 2. <br /> The installation of boring B-1 is discussed in section 3.2 of the CSR. The analytical } <br /> results are summarized on Table 3. <br /> Figure 4-shows the extent of the first phase of excavation including step-down ramps, <br /> excavation sample locations and stockpile Iocations. Figure 5-shows the extent of the <br /> final excavation with step-down area, stockpile locations, ,and sample locations for both <br /> the excavation and overburden soil stockpiles. Excavation procedures are discussed in ! <br /> section 3.5 of the CSR. Analytical results of excavation samples are summarized on <br /> Table 6. � <br /> j <br /> I ' <br /> j <br /> I <br /> ! <br /> i r <br /> ;i <br /> i I <br /> I <br />' k <br /> I � <br /> I <br /> } <br />