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' 15 June 2004 <br /> AGE-NC Project No 01-0877 <br />' Page 7 of 7 <br />' 0 The vertical extent of petroleum hydrocarbon-impacted soil is not defined High concentrations <br /> of TPH-g and BTEX compounds were detected in soil sample B5-60, collected at total depth <br /> from the deepest soil boring <br />' a During Fourth Quarter 2003, the average ground water elevation at the site was 17 35 feet <br /> below MSL Ground water flow was inferred to be towards the northeast under a gradient of <br /> 0 003 ft/ft <br />' 0 High concentrations of TPH-g and BTEX compounds were detected in all monitoring wells <br /> during Fourth Quarter 2003 In addition, 1,2-DCA and EDB were detected in wells MW-1 <br />' through MW-3 at concentrations ranging between 24 lig/1 (MW-3) and 57 µg/l (MW-1) <br /> 4 <br />' 5.0. RECOMMENDATIONS <br />' Based on the findings of this investigation, AGE recommends <br /> • Initiation of a quarterly ground water monitoring program <br />' Additional assessment to define the vertical and lateral extent of soil and groundwater <br /> contamination <br /> 1 <br /> 6.0. LIMITATIONS <br />' Our professional services were performed using that degree of care and skill ordinarily exercised by <br /> environmental consultants practicing in this or similar localities The findings were based upon <br />' analytical results provided by an independent laboratory Evaluation of the geologic/hydrogeologic <br /> conditions at the site for the purpose of this investigation was made from a limited number of <br /> available data points (ie soil and ground water samples) and subsurface conditions may vary away <br />' from these data points No other warranty, expressed or implied, is made as to the professional <br /> interpretations, opinions and recommendations contained in this report <br /> 1 <br /> 5 <br /> 1 <br /> 1 <br /> 1 Advanced GeoEnvi ron mental,Inc <br /> 1 <br />