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, e r s s , 04 October 1996 ` AGE-NC,Project P No 95-0121 Page 4 of 4 "levels, analytical results from samples collected,m these wells may not,be representative of shallow aquifer conditions • .Further assessment northeast of MW-4 and west,of MW-7 will be necessary to determine the, ' lateral extent of dissolved hydrocarbons ground water arid'to monitor possible migration of the plume as a result of ground water migration _ 1- ' ' 4 2 RECOMMENDATIONS Based upon data'collected from the site, AGE has the following recommendations ' •, At least two additional monitoring wells should be installed at the site one well should be considered for installation northeast of MW-4, a second well should be considered west of MW-7 Any additional rrionitonng wells installed at the site should-be completed to allow for the r extreme fluctuation of ground water elevation in the area • s ' A,Remedial Action Work Plan and addendum were submitted to the PHS-EHD in April and May 1996, respectively Upon regulatory approval, installation of the remediation system ' should commence I I e. - • The next quarterly monitoring should be scheduled for November 1996 ' , I ; 50. LIMITATIONS t v , Our professional'services were per-formed,iising that degree'of care and skill ordinarily exercised by a` environmental consultants practicing in this,or similar localities The findings were based upon analytical results provided by an independent'laboratory Evaluations of the geologic/hydrogeologic conditions at the site for the purpose of this investigation are made from a limited number of available data points (i a bonngs, monitoring wells), and subsurface conditions may vary away Ifrom these data , ' points No other warranty, expressed or implied, is made as fo the professional recommendations contain4in this report 1'n 1 1 a r , e I r , J i f , , v