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r28 July 2005 AGE-NC Project No 01-0886 ' Page 6 of 6 ' to 65 56 feet below the tops of the well casings Ground water elevation at the site ranged from 33 87 feet to 34 90 feet below MSL, and averaged approximately 34 49 feet below MSL • On 17 May 2005, ground water at the site was inferred to be flowing toward the south- southeast under a hydraulic gradient of approximately 0 015 ft/ft • TPH-g was detected in wells MW-1 and MW-3 at concentrations of 100 gg/1 and 200 gg/l, respectively MTBE was detected in wells MW-1 and MW-3 at concentrations of 55µg/1 and 15 gg/l,respectively 1,2-DCA was detected in wells MW-1 and MW-3 at concentrations of ' 28 µg11 and 190 gg/l, respectively Xylenes were detected in well MW-3 at a concentration of 23 µg/1 0 - tftw 3 �44 I-I'D GO a I q� 4�, • The lateral extent of petroleum hydrocarbon contampa tion is defined to the west by well a,--MW-2 and to the north (up-gradient) by well MW-3, the lateral extent of petroleum hydrocarbon contamination is not yet defined to the south or east of well MW-1 K, 1 ' 5.0. RECOMMENDATIONS Based on the findings of the environmental activities recounted in this report, AGE recommends ' Continuation of quarterly monitoring events,the next event is scheduled for the third quarter 2005 1 6.0. LIMITATIONS Our professional services were performed using that degree of care and skill ordinarily exercised by ' environmental consultants practicing in this or similar localities The findings were based upon analytical results provided by an independent laboratory Evaluation of the geologic/hydrogeologic conditions at the site for the purpose of this investigation was made from a limited number of ' available data points(i e ,soil and ground water samples)and subsurface conditions may vary away from these data points No other warranty, expressed or implied, is made as to the professional interpretations, opinions, and recommendations contained in this report • ' Advanced GeoEnvironmentsl,Inc