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1 <br /> 21 November 2001 <br /> • AGE-NC Project No 95-0167 <br /> tPage 2 of 4 <br />' container and transported under chain-of-custody to McCampbell Analytical Inc (MAI), and were <br /> analyzed for <br /> • Total petroleum hydrocarbons quantified as gasoline (TPH-g) in accordance with EPA <br /> Method 8015 Modified, <br />' 0 Volatile aromatic hydrocarbons --benzene, toluene, ethylbenzene and total xylenes (BTEX) <br /> and the oxygenated ether methyl tertiary-butyl ether (MTBE) in accordance with EPA <br /> Method 8020/602, and <br /> • Fuel additives- di-isopropyl ether(DIPS), ethyl tertiary-butyl ether(ETBE),methyl tertiary- <br /> butyl ether(MTBE), tertiary-amyl methyl ether(TAME), tertiary butanol(TBA),methanol, <br /> ethanol, ethyl dibromide(EDB) and 1,2-Dichloroethane(1,2-DCA) in accordance with EPA <br /> Method 5260 Modified, respectively <br />' 3.0. FINDINGS <br />'• Ground water flow direction, elevation, and gradient were determined from data collected in the <br /> field, The hydrocarbon impact to ground water was quantified by the laboratory data obtained from <br /> the ground water samples <br />' 3 1 GROUND WATER ELEVATION AND GRADIENT <br /> For the August 2001 sampling event, depths to ground water ranged from 14 17 feet to 15 04 feet <br /> below the tops of the well casings Ground water elevations at the site ranged from 4 56 feet to 5 95 <br />' feet below mean sea level(MSL) Ground water was within the screened interval of MW-2 through <br /> MW-6, ground water was approximately 0 20 feet above the screened interval of MW-1 <br /> The ground water flow direction was determined by plotting and contouring the ground water <br /> elevation data The ground water at the site was determined to be flowing to the northwest under an <br /> average gradient of 0 020 ft/ft Figure 3 illustrates the contoured ground water elevations as <br /> measured on 24 August 2001 <br />' 3 2 LABORATORY RESULTS OF GROUND WATER SAMPLES <br />' TPH-g was detected in the water samples collected from monitoring wells MW-1 and MW-2 at <br /> concentrations of 26,000 micrograrris per liter (µg11) and 670 µg/l, respectively <br /> Advanced GeeEnvlronmentai,Inc <br /> 1 <br />