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i <br /> Upon opening the sampler, the ends of one of three of the brass sample tubes were immediately <br /> f.. <br /> :....._� sealed with Teflon's'liners, capped with polyethylene end caps, and final-sealed with polyethylene <br /> tape. <br /> Each sealed tube was properly labeled and placed in a cooler chilled to 4'C for transport to <br /> Sherwood Labs Corporation in Hilmar, a California Department of Health Services (DHS) <br /> -certified laboratory. Soil sampling and handling were conducted using appropriate chain-of- <br /> custody procedures. <br /> 3.3 Soil Analytical Results <br /> Each sample collected from HP-7, HP-8, HP-9, and HP-10 was analyzed for the presence of <br /> Total Petroleum Hydrocarbons as gasoline (TPH-g) by modified EPA Method 801515030, Total <br /> Recoverable Petroleum Hydrocarbons as diesel (TRPH-d), and the volatile aromatics benzene, <br /> toluene, ethylbenzene, and total xylenes (BTEX) by EPA Method 8020. All soil analytical <br /> results are listed in Table 1. The laboratory reports and accompanying chain-of-custody are <br /> included as Appendix D. <br /> Detectable, primarily fractional BTEX analytes were detected only in soil samples collected from <br /> HP-7 at 15 feet, and from HP-9 at 15 feet. The highest TPH-g result was 3 mg/Kg, revealed <br /> in the sample collected from HP-9. TRPH-d results were wholly nondetectable. <br /> 3.4 Hydropunch"Sampling <br /> ' Hydropunch'`'' ground=water samples were collected from HP-7 at -19 feet; from HP-8 at 21.5 <br /> feet; from HP-9 at 23.5 feet; and from HP-10 at 21.5 feet bsg. Boring logs of HP-7, HP-8, HP- <br /> 9, and HP-10 are included within Appendix B. HP-9 yielded the only sample impacted with <br /> elevated concentrations of TPH-g and benzene. Table lA lists the analytical results of the <br /> Hydropunch'w ground-water samples submitted to Sherwood Labs Corporation of Hilmar, <br /> California. <br /> W.W. Irvwn,Inc. <br /> Project No. 33416.05&.06 <br /> August 1995 7 <br />