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i <br /> 05 September 2000 <br /> AGE-NC Project No 99-0645 <br /> Page 5 of 5 <br /> I5.0. SUMMARY AND CONCLUSIONS <br /> Based on the data collected from the site, AGE concludes that <br /> IThe highest concentrations of petroleum hydrocarbons compounds were detected in samples <br /> collected from the western wall of the former excavation Lower concentrations of petroleum <br /> I hydrocarbons as gasoline were also detected in the floor sample and samples collected from <br /> the north and west sidewalls Fuel oxygenates, including MTBE, TAME and TBA were <br /> detected in all samples <br /> • In total,approximately 195 metric tons of hydrocarbon-impacted soil have been successfully <br /> removed and transported to an approved landfill <br /> 6 0. RECOMMENDATIONS <br /> Based on the findings of this investigation, AGE recommends <br /> g <br /> • Preparation of a work plan for installation of soil borings and possibly ground water <br /> monitoring wells, if ground water is encountered <br /> I • If ground water is encountered and wells are installed, a quarterly ground water monitoring <br /> program should be initiated <br /> I <br /> 70. 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 (soil and ground water samples) and subsurface conditions may vary away from these data <br /> Points No other warranty, expressed or implied, is made as to the professional recommendations <br /> contained in this report <br /> I <br /> Advanced GeAnvlronmental,Inc <br />