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1 <br />' 15 March 2005 <br /> . AGE-NC Project No 01-0815 <br />' Page 3 of 4 <br /> The fuel additives MTBE and TAME were detected to ground water samples collected from wells <br />' MW-1 through MW-3 at maximum concentrations of 190,000µg/1 and 610µg/1,respectively,in the <br /> sample from well MW-1 No other analytes were detected at or above laboratory detection limits in <br /> the ground water samples analyzed <br /> The analytical results of the ground water samples collected on 17 November 2004 are summarized <br /> in Table 2 The laboratory report (CTEL Project No CT214-0411133), quality assurance/quality <br /> control (QA/QC) report, and chain of custody form are included in Appendix C Documents <br /> confirming the upload of laboratory electronic deliverable format (EDF) files and depth to water <br />' measurements to GeoTracker are included in Appendix D A plane view map depicting the <br /> concentrations of petroleum hydrocarbon contamination is illustrated on Figure 4 <br /> 4.0. SUMMARY AND CONCLUSIONS <br />' Based on the data collected from the site, AGE concludes <br /> . • The ground water elevations ranged from 21 77 feet to 21 87 feet below MSL Ground water <br /> was inferred to be flowing toward the southeast, away from the former UST area, under a <br /> calculated gradient of 0 003 ft/ft <br />' • TPH-g,BTEX compounds,and the fuel additives MTBE and TAME were detected in ground <br /> water samples collected from wells MW-1 through MW-3 The maximum concentrations of <br /> TPH-g, benzene and fuel additives were detected in sample MW-1, the maximum <br />' concentrations of toluene, ethylbenzene and xylenes were detected in sample MW-3 <br /> • Petroleum hydrocarbon impact to ground water is not defined in any direction <br /> 5.0. RECOMMENDATIONS <br /> 1 <br /> Based on the findings of the environmental activities recounted in this report, AGE recommends <br />' • Continuation of the quarterly monitoring program The next monitoring event is scheduled <br /> for February 2005 <br />' • Additional assessment to define the vertical and lateral extent of soil and ground water <br /> contamination <br /> • Preparation of an Interim Remediation Work Plan to contain the offsite migration of <br /> petroleum hydrocarbon-impacted ground water <br /> Advanced GeoEnvnronmental,Inc <br />