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7 <br /> to JL Analytical Services , Inc of Modesto , a California- <br /> state certified hazardous waste analytical laboratory, <br /> under chain of custody Subsequent analyses were performed <br /> for Total Petroleum Hydrocarbons as Diesel (TPH-D) , Total <br /> Petroleum Hydrocarbons as Gasoline (TPH-G) , benzene , <br /> toluene, ethylbenzene , and total xylenes (BTEX) using EPA <br /> Methods 3550/8015 and 5030/8015-8020 , respectively, and for <br /> Total Oil and Grease (TOG) using SM 5520 D&F <br /> Grab water samples from each boring were acquired within a <br /> clean , disposable polyethylene bailer lowered into the bore <br /> hole to a point 3ust below the surface of the water Upon <br /> being returned to grade, the contents of each bailer were <br /> transferred into four Volatile Organic Analysis (VOA) vials <br /> and two amber glass liter bottles Each container was <br /> promptly covered with a teflon-lined screw cap , labeled, <br /> and placed in an iced, insulated container for trans- <br /> portation to JL Analytical Services under chain of custody . <br /> Subsequent analyses were performed for Total Petroleum <br /> Hydrocarbons as Diesel (TPH-D) , Total Petroleum Hydro- <br /> carbons as Gasoline (TPH-G) , benzene , toluene , ethyl - <br /> benzene , and total xylenes (BTEX) using EPA Methods 3510/ <br /> 8015 and 5030/8015-8020 ( 602 ) , respectively, and for Total <br /> Oil and Grease (TOG) using SM 5520 B&F <br /> Certified laboratory analyses of discrete soil and grab <br /> water samples from each of the ten borings advanced on site <br /> !� revealed the presence of detectable concentrations of fuel <br /> hydrocarbon compounds The results of these analyses are <br /> summarized in Tables 1 and 2 : <br /> Table 1 <br /> Analytical Results of Subsurface Soil Samples Acquired <br /> at 275 Grant Line Road, Tracy, CA <br /> October , 1993 <br /> Sample No TPH-D TPH-G B T E X TOG <br /> and Depth (ppm) (ppm) (Ppb) (Ppm) <br /> ----------------------------------------------------------- <br /> SBR-1@3 ' 28 7 4 1 7 N D 9 . 6 9 8 360 <br /> SBR--1@6 ' 6 6 N D N D N D. N D N.D. N .D. <br /> SBR-1@8 ' 35 92 N D . N D N. D N D. N . D <br /> SBR-2@3 ' 7 1 4 5 N .D . 1 1 28 53 N .D <br /> SBR-2@6 ' 2 8 N D N D. N . D. N D. N D 250 <br /> SBR-2@9 . 5 ' 15 4 9 N D N .D 480 460 280 <br /> SBR-3@3 ' 6 7 N D N D N D N. D N D. N D <br /> SBR-3@6 ' 5 9 N D N D N D N. D. N D N D . <br /> �4 SBR-3@9 ' 4 1 N D N.D. N . D 0 4 0 8 N .D <br /> 1 <br /> 2 . <br />