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I I f 6 . 0 LABORATORY ANALYSES ' The groundwater and soil samples were sent to McCampbell Analytcial Inc of Pacheco, California, and Curtis and Tompkins , Ltd of Berkeley, California, both state-certified laboratories tThe soil samples were selectively analyzed for TPHg using EPA Method 5030/GCFID, • BTEX and MTBE using EPA Method 8020/8260 , ' TPHd using EPA Method 8015M, and • Halogenated volatile organic compounds (HVOCs) using EPA Method 8010 The grab groundwater samples were selectively analyzed for • TPHg using EPA Method 5030/GCFID, • BTEX and MTBE using EPA Method 602/8260 , • TPHd using EPA Method 3510/GCFID, • 1, 2-Dichloroethane (1, 2-DCA) using EPA Method 624/8260 , ' Total lead using EPA Method 7420, and • Oxygenated volatile organic compounds (5 oxygenates) using EPA Method 8260 These samples wefe analyzed on a normal 5-day turnaround basis ' 7 . 0 SOIL CONDITIONS The Site was generally underlain by a brown to tan-brown clayey silt to a depth of approximately 15 feet bgs, followed by a tan to greyish-tan sandy salt to a depth of approximately 28 feet bgs Light tan clayey salt extended to the total depth of the borings (at approximately 45 feet bgs) Groundwater was ' encountered at a depth of approximately 16 feet bgs The soil samples and soil cuttings were neither stained nor ' discolored, with the exception of the soil encounted at boring SB--2 at a depth ranging from approximately 25 feet to 30 feet bgs Additionally, no odor was detected from the soil and groundwater samples , with the exception of the soil and groundwater samples collected from boring SB-2 at a depth ranging from approximately 25 feet to 30 feet bgs PTD readings ranging from 0 to 23 parts-per-million (ppm, Table 1) were recorded for the soa-1 samples collected from the borings The highest PID reading of 23 ppm was recorded for the soil sample collected from boring SB-2 at a depth of approximately 25 feet bgs I� ' 6