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1 <br /> �1 15 March 1996 <br /> ' AGE-NC Project No 95-0105 <br /> Page 7 of 7 <br /> ' therefore,are probably not representative of ground water conditions immediately north of the former <br /> UST excavations Furthermore, because soil was excavated around MW-3 and backfilled with <br /> ' imported material, samples collected from this well may not be representative of aquifer conditions <br /> at the site <br /> Laboratory analysis of grab ground water samples collected from the probings indicates that <br /> hydocarbon-impacted ground water is present north and west of the site and east of the canopy area <br /> within former UST excavation B The PHS-EHD will require the installation of additional ground <br /> 1 water monitoring wells to determine the lateral extent of the impact AGE recommends the <br /> installation of three additional ground water monitoring wells one well should bbs installed along the <br /> north side of Grant Line Road, a second well should be installed near the Awt rivest corner of the <br /> ' intersection of Grant Line Road and Parker Avenue, a third well should be installed northeast of the <br /> former UST excavation B As petroleum hydrocarbon-impacted ground water was detected in <br /> probing P5, a fourth well should be considered for the area near the souteast corner of the canopy <br /> ' area, this well should replace MW-3 <br /> The next quarterly monitoring is scheduled for April 1996, however, we recommend installation of <br /> the additional monitoring wells prior to ground water sampling event <br /> ' 6 0. LIMITATIONS <br /> 1 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 /> ' conditions at the site for the purpose of this investigation are made from a limited number of available <br /> data points(i a monitoring wells, soil samples) and subsurface conditions may vary away from these <br /> data points No other warranty, expressed or implied, is made as to the professional recommendations <br /> ' contained in this report <br /> 2 VA%d <br /> Vv��aJ T y � <br /> VIT <br /> 1 <br /> 1 <br />