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16 September 2003 S AGE-NC Project No. 97-0360 Page 3 of 3 report(CTEL Pro'ect No. CT214-0306002),QA/QC report and chain-of-custody form are included _.i in.Appendix C. -- 4.0. SUMMARY AND CONCLUSIONS Based on the data collected from the site,AGE concludes: • Ground water flow at the site on 30 May 2003 was inferred to be toward the north at a A. gradient of 0.0006 feet/feet.The gradient and direction has remained relatively stable for the previous four quarters. j TPH-g and TPH-d concentrations decreased in well EW 1 to non detect this quarter,the first time both compounds have not been detected since groundwater monitoring was initiated in February 2002. No other hydrocarbon compounds or fuel oxygenates were detected this quarter, or have been since ground water monitoring began.(Table 2). • With the exception of TPH-d,the Iateral extent of petroleum hydrocarbon-impacted ground. water has been defined in all directions. TPH-d is not completely defined east of the former UST area. • The vertical extent of hydrocarbons-impacted ground water has been defined and does not extend below 35 feet bsg. - -i 5.0. RECOMMENDATIONS Based on the findings ofthe environmental activities recounted in this report,AGE recommends site - closure and abandonment of the well on the site. 6.0. LIMITATIONS Our professional services were performed using that degree of care and skill ordinarily exercised by environmental consultants practicing in this or similar localities. The findings were based upon analytical results provided by an independent laboratory.Evaluation of the hydrogeologic conditions at the site for the purpose of this investigation was made from a limited number of available data points(i.e.,ground water samples)and subsurface conditions may vary away from these data points. No other warranty,expressed or implied,is made as to the professional interpretations,opinions and recommendations contained in this report. Advanced GeaEavironmental,Inc.