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17 November 2006 AGE-NC Project No. 01-0865 Page 3 of 5 was not reported in the samples collected from R-2 or directly below the point of discharge pipe (POD). No constituents of concern were reported in the samples collected on 16 November 2006.Laboratory reports for samples collected on 0 1, 14 and 16 November 2006 will be including in the fourth quarter monitoring report. The fuel oxygenate TBA was reported at the downstream port of each vessel for both the 01 November 2006 sampling and 14 November 2006 re-sampling. Wastewater with TBA was discharged to surface waters at a concentration of 1,200µg/l.The last effluent sampling for TBA was on 06 July 2006; at that time, TBA and all other constituents of concern were not reported above laboratory detection levels. Based upon the quantity of wastewater discharged from 06 July to 14 November 2006(49,829 gallons)and the concentrations of TBA reported on 06 July 2006 (<10 µg/1) and 01 November 2006 (1,200 µg/1), approximately 0.25 pounds of TBA was discharged to surface waters. Alternatively, based upon the quantity of wastewater discharged from 01 to 14 November 2006(4,480 gallons)and the concentration of TBA reported 01 November(1,200 µg/1) and 14 November 2006(1,100 µg/1) approximately 0.04 pounds of TBA was discharged to surface waters. Based upon these calculations,AGE estimates between 0.04 and 0.25 pounds of TBA was discharged to surface waters. In accordance with the General Order, effluent sampling for TBA was reduced from monthly to quarterly after the monthly sampling event in January 2006.TBA had been infrequently reported in the influent sample,in August 2005,May 2006 and June 2006 at concentrations of 4,100 µg/1,5,000 µg/1 and 310 µg/1, respectively. However, in the October 2006 influent sampling event, TBA was reported at 3,700 µg/1. MTBE concentrations reported in the influent sampling have ranged from <0.5 µg/1 to 240µg/l from January 2006 to November 2006. Carbon change-out had not been performed at the site. Initial discharge estimates of 4,320 gallons per day have not been achieved at the site.As of 14 November 2006, 509,100 gallons of wastewater have been discharged for a calculated rate of approximately 1,000 gallons per day (509 days of discontinuous operation).Additionally,influent MTBE concentrations have decreased dramatically in 2006 from an average of 2,461 µg/1 in 2005 to 87 µg/1. Discharge flow rate has been approximately 23% of initial estimates and 2006 influent MTBE concentrations have reduced to approximately 96%of 2005 influent MTBE concentrations indicating a significantly longer period before carbon change-out would be necessary. Excluding the obvious TBA breakthrough, GAC vessel number 1 was reported with the concentration of TPH-g and MTBE at 200 µg/1 and 24 µg/1, respectively, indicating the carbon in vessel number 1 required change-out. GAC vessel number 2 was reported with the concentration of TPH-g only at a concentration of 220 µg/1, indicated the Advanced GeoEnvironmental,Inc.