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According to the approved work plan scope of work, the soil samples collected at 20,45 and 60 <br /> feet bgs from all five well borings were sealed with Teflon*film and plastic end caps, and <br /> transported in an iced cooler with chain-of-custody documentation to Excelchern Environmental <br /> Labs Ex herr a state of California-certified hazardous waste testing laboratory(Certification <br /> #2119). Excelchem analyzed each soil sample for T H-as jet fuel, TP I-a -gasoltrt , benzene, <br /> toluene, ethylbenzene, and xylenes I TE by EPA Method 3021 B/8015M, and for methyl tertiary <br /> butyl ether(MTBE),di-isopropyl ether Il , ethyl tertiary butyl ether TBE)}tertiary amyl methyl <br /> ether(TAME),tertiary butanol(TBA), 1,2-dichloroethane(1,2-DCA), and 1 -c r m tane <br /> by EPA Method 8260B <br /> 2,2.3 qr ter itorto Sarni lin and Analysis <br /> n Juin 27 2007,Ramage Environmental monitored and sampled the three existing and five <br /> newly-instar monitoring wells. Depth-to-groundwater was measured to within .01-fes using <br /> water level indicator. Following groundwater level measurements, the wells were purged and <br /> sampled. The sample information field sheets are included in Appendix C. <br /> The wells were purged with a Pump and dedicated disposable tubing until at least three well <br /> casing volumes had been removed and/or after groundwater temperature, pH and electrical <br /> conductivity values had stabilized. Groundwater was sampled'from the wells using disposable <br /> polyethylene bailers and laboratory-supplied containers. Each sample container was transported <br /> in an iced cooler with chain-of-custody documentation to Excelchem. <br /> Excel hern analyzed each sample for TPH-as jet fuel, TI MI-as-gasoline and BTEX by EPA <br /> Method 0218/8015 , and for MTBE, DIP, ETBE, TAME, TBA, 1,2-DCA, and EDB by EPA <br /> Method 82608. <br /> .3 Gare Penetration Testi <br /> On May 29, 2007,to further delineate the soil stratigraphy and to investigate the vertical eaten of <br /> petroleum hydrocarbons bele the groundwater table, Gregg Drilling completed come penetration <br /> testing and depth-discrete soil acrd groundwater sampling at one on-site location(CPT- As <br /> shown on Figure 2 CPT-1 was located on the north end of the former fuel farm. Gregg Drilling's <br /> CPT Site Investigation Report, dated May 31, 2007, Is included'as Appendix E. <br /> 8 <br />