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10 05 November 2005 <br /> AGE-NC Project No 97-0326 <br />' Page 5 of 5 <br /> • Generally, with the exception of first-level wells in MW-8 and MW-9, concentrations of <br />' analytes increased in all wells this quarter, especially in HU6 well MW-9D, which reported <br /> a ten-fold increase <br />' • Laterally,the highest concentrations of contaminants in HUl were centered around the tank- <br /> pit and dispenser areas (Figures 4 and 5) <br /> 1 • The lateral extent and vertical extent of petroleum hydrocarbon-impacted ground water have <br /> not been defined <br /> 5.0. RECOMMENDATIONS <br /> Based on the findings of this investigation, AGE recommends <br /> • Continuation of the quarterly ground water monitoring program,but remove the analysis for <br /> ethanol and methanol The next monitoring event is scheduled for December 2005 <br /> • Installation of off-site monitoring wells, pending resolution of permitting and bond issues, <br /> wto date,AGE has installed three of the eight monitoring wells proposed in the AGE-prepared <br /> Additional Monitoring Wells Work Plan, dated 26 July 2002 <br /> • Preparation of a work plan for interim remediation of petroleum-impacted soil and ground <br /> water <br /> 1 <br /> G.O. 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 Evaluation of the hydrogeologic conditions <br /> at the site for the purpose of this investigation was made from a limited number of available data <br /> points(1 e ,ground water samples)and subsurface conditions may vary away from these data points <br />' No other warranty,expressed or implied,is made as to the professional interpretations,opinions,and <br /> recommendations contained in this report <br /> 1 <br /> 1 <br />' Advanced GeoEnvironmental,Inc <br />