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f Subsurface investigation and Page 7 <br /> Remedial Excavation of Hydrocarbon-affected Soil <br /> Proposed Cintra Park Phase H Development, Tract 2705, Tracy, California <br /> August 8, 1997 CTE Job No. 20-0445 <br /> through SS#15. TPH-Gas and BTEX results are presented in Figure 3 through 5 and Table 1. <br /> Copies of the official laboratory reports, Quality Assurance/Quality Control Reports, Chain-of- <br /> Custody Records and analytical methods are included in Appendix C. <br /> 3.5 Excavated Soil <br /> Excavated soil was temporarily stockpiled onsite adjacent to the excavations. The excavated soil <br /> l was segregated in the field on the basis of its apparent hydrocarbon content. Non-hydrocarbon- <br /> affected was eventually replaced in the excavation. Hydrocarbon-affected soil excavated from the <br /> site was taken to the Forward,Inc. in Manteca, California facility for disposal. Before these materials <br /> were trucked to the Forward facility two soil samples (Spoils #1 and Spoils 92) were collected to <br /> characterize the soil for the disposal process. These samples were also analyzed for TPH-G and <br /> BTEX constituents by the Chroma laboratory and laboratory results are presented in Appendix C. <br /> Appropriate procedures were followed during trucking and disposal operations. Manifests for the <br /> disposal of the hydrocarbon-affected soil will be mailed later under separate cover. <br /> t . <br /> 3.6 Groundwater <br /> y Groundwater was observed seeping into the open excavations at an approximate depth of 8.5 fbg. <br /> Over time the groundwater level stabilized at an approximate depth of eight fbg in the open <br /> excavations. Free product was not observed floating on the groundwater in the open excavation. <br /> FAPR0JECTS120-0445\ENRP02.WPD <br /> Fi <br />