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d,a; <br /> 07 April 2000 <br /> .. AGE-NC Project No. 97-0327 <br /> Page 4 of 4 <br /> • MW-1, MW-2 and MW-3 are"properly screened", and yield samples fully representative of <br /> shallow ground water conditions. <br /> • Concentrations of dissolved TPH-g were barely detectable at wells MW-1 and MW-2;based <br /> on data collected in the area bound by wells MW-1, MW-2 and MW-3, concentrations of <br /> dissolved TPH-g appear to increase from the northeast to the southwest (Figure 4). <br /> ' Conversely, concentrations of dissolved TPH-d appear to increase from the southwest <br /> ,. towards the northeast (Figure 4). <br /> Very low concentrations of dissolved MTBE and TBA appear to be present in the area of <br /> monitoring wells MW-1, MW-2 and MW-3. <br /> 5.0. RECOMMENDATIONS <br /> ' Based upon data collected from the site in February 2000, AGE recommends: <br /> • Continued quarterly monitoring of ground water monitoring wells MW-1,MW-2 and MW-3. <br /> The next ground water monitoring event is tentatively scheduled for May 2000. <br /> A search for all potential ground water receptors within a 2,000-foot radius of the site. <br /> 0 Installation of three additional ground water monitoring wells; the wells should be installed <br /> further south-southwest of MW-2 (downgradient), further north-northwest of MW-2 <br /> (crossgradient)and east-northeast of MW-3 (upgradient) to delineate adsorbed and. dissolved <br /> f petroleum hydrocarbon impact. <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. Evaluations of the geologic/hydrogeologic <br /> 4 conditions at the site for the purpose of this investigation are made from a limited number of <br />'f available data points (i.e. monitoring wells), and subsurface conditions may vary away from these <br /> data- p.:: ,,o <br /> olnts.. No- .ther. warrant in thisx ressed or -gym,re ort phed- is made` as to theprofession al <br /> e ` <br /> recommendations contained p <br /> 1 0 <br /> Advanced GeoEnvironmenlal,Inc. <br /> khk ii <br />