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gVft DAMES & MOORE <br /> John Lydick <br /> November 6, 1990 <br /> Page 3 <br /> shown on Figure 6, suggest that 3 of the 5 areas, or approximately 60 percent of the soil, is below the <br />' 1,000 ppm TPH/diesel limit and should be classified as uncontaminated soil by BFI The areas which <br /> exceeded 1,000 ppm TPH were resampled on 10/19/90 <br /> The results of Dames & Moore's analyses indicate <br /> 1) The soil is nonhazardous based on CCR Tale 22, Article l I criteria <br /> 2) During soil treatment, the SW-846 sampling procedure (shown in Figure 3 to 5) suggest <br /> that there are areas above and below 1000 ppm TPH <br /> 3) Landtarming this soil from June to the present has reduced the average TPH/diesel <br /> concentration below 1000 ppm TPH <br /> The following reports have been submitted to the RWQCB and the San Joaquin County Health <br /> Department site investigation report "Soil and Ground Water Assessment" (Klientelder, 1987), the <br /> Feasibility Study/Remedial Action Plan" (Dames & Moore, 1988), and the "Soil Remediation and <br />' Groundwater Monitoring Workplan" (Dames & Moore, 1990) If you need any historical information <br /> or clarification of these results, please contact the undersigned at (916) 364-8698 <br />' Sincerely, <br /> DAMES & MOORE <br />' Jeffrey G Bold <br /> Project Manager <br />' JGB sdm <br /> Attachments <br /> SAC 11 008 <br /> DAMES & MOORE <br />