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' 25 August 2005 AGE-NC Project No 01-0815 ' Page 3 of 4 _ ' ethylbenzene and 2,410,000 µg/1 total xylenes in well MW-3 _ The fuel additives MTBE and TAME were detected in ground water samples collected from wells ' MW-1 through MW-3 at maximum concentrations of 86,000µg/1 and 1,800µg/1 inthe samples from well MW-1 No other analytes were detected at or above laboratory detection limits in the analyzed ground water samples The analytical results of the ground water samples collected on 14 February 2005 are summarized in Table 2 The laboratory report (CTEL Project No CT214-0505165), quality assurance/quality ' control (QA/QC) report, and chain of custody form are included in Appendix C Documents confirming the upload of laboratory electronic deliverable format (EDF) files and depth to water measurements to GeoTracker are included in Appendix D A plane view map depicting the _ ' concentrations of petroleum hydrocarbon contamination is illustrated on Figure 4 ' 4.0. SUMMARY AND CONCLUSIONS � . Based on the data collected from the site, AGE concludes • The ground water elevations ranged from 17 26 feet to 17 37 feet below MSL Ground water ' was inferred to be flowing toward the east-northeast under a calculated gradient of 0 0016 ft/ft • TPH-g,BTEX compounds,and the fuel additives MTBE and TAME were detected in ground ' water samples collected from wells MW-1 through MW-3 A significant increase in the dissolved TPH-g and BTEX concentrations were detected in well MW-3 ' • Petroleum hydrocarbon impact to ground water is not defined in any direction 5.0. RECOMMENDATIONS ' Based on the findings of the environmental activities recounted in this report, AGE recommends • Continuation of the quarterly monitoring program The next monitoring event is scheduled ' for August 2005 , • Implementation of AGE's Well Installation and Feasibility Studies WorkPlan dated 15 June 2005 Work is scheduled to commence in August 2005 • Advanced GeoEnvjlonmental,Inc