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1 <br />' respectively, and BTEX compounds were detected at concentrations of 12 gg/kg, 5 gg/kg, 5 µg/kg <br /> • and 20 µg/kg, respectively In addition, total xylene was detected in sample SBI-15 at a <br />' concentration of 5 gg/kg and TPH-d was detected in sample MW-1-10 at 100 mg/kg <br /> The oxygenated fuel additive MTBE was detected in seven of the soil samples analyzed The <br />' concentration of MTBE detected in the seven soil samples ranged from 7 gg/kg (MW-1-10) to <br /> 2,720 gg/kg (SB 1-10) The highest MTBE concentration was detected from soil collected from the <br /> former dispenser area at 10 feet bsg(SBI-10),significant concentrations were also detected at depths <br />' of 5 feet and 15 feet bsg No MTBE was detected at 35 feet or 40 feet bsg <br />' GROUND WATER MONITORING <br />' Initial ground water samples were collected on 28 February 2000 _ To date, six ground water <br /> monitoring events have been conducted at the site Depth to ground water has ranged between 9 77 <br /> and 12 80 feet bsg, ground water flow direction has been consistently northeast at a gradient of <br /> approximately 0 002 ft/ft Petroleum hydrocarbon compounds was detected during three monitoring <br />' events, TPH-g (100 gg/1), benzene (2 7 gg/l), ethylbenzene (0 92 4g/1) zylenes (gg/1) and MTBE <br /> (16 gg/l) in sample MW-1 in March 2002, MTBE (4 2 gg/l) in sample MW-1 and TPH-d (77 gg/l) <br />' in sample MW-3 in Nobember 2000, and MTBE (4 9 gg/1) in sample MW-1 and TPH-d(I 10 gg/l) <br /> in sample MW-5 in March 2001 <br /> lie <br /> I <br /> I ' <br /> I <br /> I <br /> • <br /> Advanced GcoEnvironmental,Inc. <br /> I <br />