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30 May 2005 <br /> AGE-NC Project No 02-0964 <br /> Page 3 of 4 <br /> respectively (Table 2) 1,2-DCA was detected was non-detect this quarter (Table 3) No other <br /> petroleum hydrocarbons were detected in the ground water sample from well MW-1 <br /> Analytical results of ground water samples are summarized in Tables 2 and 3 The laboratory report <br /> (CTEL Project No CT214-0412244),quality assurance/quality control report and chain of custody <br /> form are included in Appendix C GeoTracker confirmation pages of the submitted laboratory <br /> electronic deliverable format (EDF) files are included in Appendix D <br />' 4.0. SUMMARY AND CONCLUSIONS <br /> Based on data collected on the site, AGE concludes <br /> • Depth to ground water at the site averaged approximately 28 85 feet bsg on 31 March 2005 <br />' 0 Ground water elevation in the monitored area ranged from 16 95 feet to 17 95 feet below <br /> MSL Flow direction was inferred to be toward the east-northeast under a gradient of <br /> approximately 0 008 ft/ft <br /> s In well MW-1, TPH-g and BTEX were detected with concentrations of benzene, <br /> ethylbenzene, and total xylenes significantly above the DHS's Maximum Contaminant <br />' Levels established for these compounds in drinking water <br /> • In well MW-1, concentrations of xylenes, toluene and benzene increased while <br /> concentrations of ethylbenzene and TPH-g decreased <br />' 0 The extent of petroleum hydrocarbon and BTEX compounds at the site have not yet been <br /> defined <br /> 1 <br />' SA. RECOMMENDATIONS <br /> Based on the findings recounted in this report, AGE recommends <br /> • Continued quarterly monitoring of the site, the next monitoring event should take place in <br /> June 2005 <br />' a Once the impacts to soil and ground water have been delineated, a work plan should be <br /> prepared for feasibility testing to evaluate various remedial alternatives at the site <br /> A&anced GeoEnwonmental,Inc <br /> 1 <br />