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07 March 2003 <br /> • AGE-NC Project No 00-0764 <br /> Page 4 of 4 <br /> • The benzene concentration in well MW-3 and the 1,1-DCA concentration in well MW-4 are <br /> above the DHS's Maximum Contaminant Level of 10 pg/l and 5 0 µg/1, respectively, in <br /> drinking water <br /> • At the present time,neither the vertical extent nor the southern and eastern lateral extent of <br /> the dissolved hydrocarbons have been defined <br /> 5.0. RECOMMENDATIONS <br /> Based on the results of this investigation, AGE recommends <br /> • Continued quarterly ground water monitoring, the next monitoring event is scheduled for <br /> April 2003 <br /> • Installation of additional soil borings/monitoring wells for lateral delineation of the dissolved <br /> hydrocarbons east of the site <br /> • 6.0. LIMITATIONS <br /> Our professional services were performed using that degree of care and skill ordinarily exercised by <br /> environmental consuitantL practicing in this or similar localities The findings were based mai-ly <br /> upon analytical results provided by an independent laboratory Evaluations of the hydrogeologic <br /> conditions at the site for the purpose of this investigation are made from a limited number of <br /> available data points (i a ground water samples), and subsurface conditions may vary away from <br /> these data points No other warranty, expressed or implied, is made as to the professional <br /> 1 interpretations, opinions and recommendations contained in this report <br /> 1 <br /> Advanced GeoEnvironmental,Inc <br /> I <br />