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, , r <br /> , �,«nc;r W — � ., , ^a " - v . ,; r -- .. r rte-; ' a.. ^. r �,-+- n .. , ..�w-•�• z <br /> l <br /> I, 10-March 2000 <br /> . AGE-NC Project No 96-0235 - <br />' ' Page 4 of 4 <br /> • Low concentrations of hydrocarbons were detected in five wells where hydrocarbons were <br /> not detected during the previous''-monitonng event <br /> Based on the data collected from the former UST cluster area, AGE finds <br />' The concentration of TPH-d increased dramatically in the ground water sample collected , <br /> from MW-10, screened in the upper ground water Interval Concentrations of TPH-g,BTEX <br /> and MTBE decreased in MW-10 Hydrocarbon concentrations decreased in MW-9, screened ' <br />' within the lower ground water interval , <br /> Shallow ground water is the most Impacted in MW-16, deeper ground water is less intensely <br />' impacted <br /> i5.0. RECOMMENDATIONS <br />'• Based on the findings of the environmental activities,recounted in this report, AGE recommends <br /> • A work plan for the installation of additional ground water monitoring wells at the former <br />' UST cluster location, and installation of remediation wells and performance of feasibility <br /> studies at both the former UST No 3 and former UST cluster locations has been submitted <br /> to the PHS-EHD The outlined work should be performed upon approval of the work plan <br />' by the PHS-EHD s <br /> • Following installation of the additional ground water monitoring wells, the next quarterly <br />' ground water monitoring event should be performed Field work is anticipated for April <br /> 2000 <br /> _ <br /> z <br /> 6.0. LIMITATIONS v , <br /> � f <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 hydrogeologic conditions <br /> at the site for the purpose of this Investigation was made from review of previous consultants reports <br /> and a limited number of available data points(ground water samples) and subsurface conditions may <br />' vary away from these data points No other warranty, expressed or implied, is made as to the <br /> professional recommendations contained in this report <br />' J, Advanced GeoEnvironmental,Inc <br />