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pe9e 6 Each boring was advanced with a hand auger. Discrete soil samples and a grab water sample were acquired from each borehole. Each soil sample was collected within a 1 . 9 inch diameter by 4 . 0 inch long clean brass sleeve fitted within a drive sampler lowered into the borehole to a point accessed by the hand auger . Upon being retrieved, the drive sampler was opened and the brass sleeve removed. The ends of each sleeve were then covered with teflon sheeting/aluminum foal , fatted with plastic caps , and sealed with duct tape. Each tube was then marked and placed in an iced, insulated container for trans-portation to Priority Environmental Labs of Milpitas , a California- state certified hazardous waste analytical laboratory, under chain of custody. Subsequent analyses were performed for Total Petroleum Hydrocarbons as Diesel (TPH-D) , Total Petroleum Hydrocarbons as Gasoline (TPH-G) , benzene, toluene, ethylbenzene , and total xylenes (BTEX) using EPA Methods 3550/8015 and 5030/8015-8020 , respectively. Grab water samples from each boring were acquired within a clean, disposable polyethylene bailer lowered into the borehole to a point just below the surface of the water . Upon being returned to grade, the contents of each bailer • were transferred into Volatile Organic Analysis (VOA) vials and one amber glass liter bottle. Each container was promptly covered with a teflon-lined screw cap, labeled, and placed in an aced, insulated container for trans- portation to Priority Environmental Labs under chain of custody. Subsequent analyses were performed for Total Petroleum Hydrocarbons as Diesel (TPH-D) , Total Petroleum Hydrocarbons as Gasoline (TPH-G) , benzene, toluene, ethyl- benzene, and total xylenes (BTEX) using EPA Methods 3510/ 8015 and 5030/8015-8020 (602 ) , respectively Boring EP--5 was located eight feet east of the eastern boundary fence of 2360 East Street near the southern boundary of the south sidewalk of Grant Line Road The first few inches of the soil profile consisted of asphalt pavement and gravel . The top 4 feet of soil beneath consisted of dark-brown silty clay followed by clay to 6 feet . Light-olive colored dense clay was present between 6 and 7 feet where an odor consistent with petroleum hydrocarbons was present . Groundwater was encountered beneath this dense clay layer in a dark-gray salty sand formation with intense petroleum hydrocarbon odor . A brown, oily sheen was present on the groundwater Later , when a groundwater sample was taken, the same oily material was observed coating the bailer . Discrete soil samples were acquired at 5 feet and 7 . 5 feet below ground surface .� (bgs) .