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' 27 March 2006 • AGE-NC Project No 99-0592 ' Page 3 of 4 ' Figure 3 Illustrates the contoured ground water elevations ' 3 2 ANALYTICAL RESULTS OF GROUND WATER SAMPLES No analytes of concern were detected above laboratory reporting limits in the samples collected for ' the fourth quarter monitoring event Analytical results for the ground water samples from the December 2005 monitoring event are summarized in Tables 2 and 3 The laboratory report(CTEL Project No CT214-0512074), quality assurance/quality control (QA/QC) reports and chain of ' custody are included in Appendix B Documents confirming the upload of laboratory electronic deliverable format (EDF) files and depth to water measurements to GeoTracker are included in Appendix C 1 4.0. SUMMARY AND CONCLUSIONS ' Based on the findings from this investigation, AGE concludes ' . Ground water at the site for the December 2005 monitoring event was Inferred to be flowing toward the north-northeast at an average gradient of 0 004 ft/ft The ground water flow ' direction is Inconsistent with the previous monitoring event,but consistent with the majority of past events • The average ground water elevation at the site on 08 December 2005 was 35 47 feet below ' MSL The average ground water elevation at the site increased approximately 2 93 feet between the September 2005 and December 2005 monitoring events ' None of the target analytes were detected in fourth quarter 2005 ground water samples ' 5.0. RECOMMENDATIONS ' Based on the results of this investigation, AGE submitted a Closure Summary Report, dated 30 August 2004,the EHD_responded by letter dated 15 March 2005,requiring site fate and transport study of fuel compounds as well as TCE and PCE Pending site closure, AGE recommends ' continued quarterly ground water monitoring The next monitoring event was performed on 08 March 2006 • Advanced GeoEnvironmental,Inc