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5.0 ANALYTICAL PROGRAM <br /> ' The groundwater and water storage tank samples were submitted to Curtis and Tompkins <br /> laboratories, in Berkeley, California, for analysis of volatile organic compounds by EPA Test <br /> ' Method 8240. Additionally, the laboratory reported their internal quality control surrogate <br /> analysis on the water samples submitted by TRC, that were collected during the field <br /> investigation. <br /> 1 <br /> ' 6.0 RESULTS <br /> 6.1 Subsurface Conditions <br /> The A-aquifer was encountered between approximately 24 and 32 feet bgs. The A-aquifer <br /> ' material consists of a yellowish-brown, fine- to coarse-grained micaceous sand. The B-aquifer <br /> was encountered between 60 and 75 feet bgs. The B-aquifer material consists of a dark gray <br /> to black, clayey sand. The C-aquifer was encountered between 110 and 117 feet bgs. The <br /> ' C-aquifer material consists of yellowish-brown, silty to clayey sand. No odors or visible staining <br /> were encountered in the sediments studied. The aquifers were separated by clayey materials, <br /> ' with some interfingering silt and sand lenses. The boring log is presented in Appendix A. The <br /> geophysical log is presented in Appendix B. <br /> ' 6.2 Analytical Conditions <br /> ' Table 1 presents the analytical results. The groundwater sample from the monitoring well <br /> (sample Cl) contained no laboratory detectable concentrations of volatile organic compounds. <br /> The water sample from the development water storage tank (sample DW-1) contained a <br /> tdetectable quantity of Trichloroethene (TCE) in the amount of 3 ug/L (3 parts per billion). This <br /> quantity is below the laboratories reporting limit of 5 ug/L. <br /> 1 The original laboratory data sheets and chain-of-custody documentation is presented in <br /> Appendix C. <br /> 1 <br /> ' 14744003.013 4 <br /> TRC <br />