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Grab water samples from each boring were acquired within a <br /> clean, disposable polyethylene bailer lowered into the bore <br /> hole to a point just 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 duel <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 /> SSR-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 /> i <br /> SBR-3@6' 5. 9 N.D. N.D. N.D. N.D N D. N D. <br /> SBR-3@9 ' 4. 1 N.D. N.D. N.D. 0 . 4 0 . 8 N.D <br /> SBR-4@3 ' 4 . 9 N D. N.D. 0 . 3 9 . 4 6 . 7 320 <br /> SBR-4@6 ' 2 . 4 N.D. N.D. N.D. N.D. N.D. N D. <br /> SBR-4@8 ' 16 N.D. N D N.D. N.D. N.D. N.D. <br /> SBR-5@3 ' 8 . 8 N.D N.D N.D. N.D. N. D. N.D. <br /> SBR-5@6 ' 4 5 N.D. N.D N D. N.D. N.D. 260 <br /> SBR-5@8 ' 40 71 N.D N. D. N.D. N.D. N D. <br /> SBR-6@3 ' 13 7 . 3 0 . 4 0 . 8 N.D. N D N.D <br /> Page 4 <br />