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' 27 December 2005 S AGE-NC-95-0185 Page 4 of 4 pages of the submitted laboratory electronic deliverable format (EDF) files and depth to water measurements are provided in Appendix D. 4.0. CONCLUSIONS Based on the data collected during the August 2005 monitoring period, AGE concludes: • Visual free product was present in well MW-4. Free product monitoring and remediation was initiated in August 2005. Well MW-5 continues to be inaccessible this quarter and has ' not been monitored since June 2004. • Groundwater ranged between 32.01 feet and 32.85 feet above MSL and was inferred to flow ' toward the southeast at a gradient of approximately 0.009.ft/ft. • Petroleum hydrocarbons have not been detected in wells MW-2 and MW-3 since the third quarter 2002. 5.0. RECOMMENDATIONS Based upon the results of the third quarter 2005 monitoring event, AGE recommends: Continued quarterly ground water monitoring at the site for dissolved TPH-d; the next monitoring event is scheduled for November 2005. New efforts to locate well MW-5. ' 0 Installation of monitoring wells to the north of well N4W-1 and to the east of well MW-4 to further define the north and eastern sectors of the TPH-d plume. ' Interim ground water remediation to control the migration and reduce the concentrations of the petroleum hydrocarbon ground water plume at the site. 6.0. LIMITATIONS ' performed using that degree of care and skill ordinarily exercised b Our professional services were pe o g g y y environmental consultants practicing in this or similar localities. The findings were based on analytical results provided by an independent laboratory. Evaluations of the hydrogeologic conditions at the site for the purpose of this investigation were 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 GeoEnvironmental,Inc.