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3.1.6 Domestic Well Monitoring Two domestic wells (7898-A and 8106-A)were sampled on November 16, 2009. Table 3-3 summarizes the current analytical results for the domestic well samples collected. As shown on Table 3-3, three VOCs (DCDFM, PCE, and TCE)were measured above the PQL in the samples collected from both domestic wells 7898-A and 8106-A. In addition, a trace concentration of 1,1-DCA was measured in the sample collected from domestic well 7898-A, and 1,l-DCA and cis-1,2-DCE were measured at trace concentrations in the sample collected from domestic well 8106-A. 3.1.7 Surface Water Monitoring On November 17, 2009, surface-water monitoring stations ASW-1 and ASW-2 were reported dry, and as a result, no samples were collected for the fourth quarter 2009 monitoring period. 3.1.8 Leachate Monitoring According to the Operations Manager, no leachate was taken off site during the fourth quarter 2009. The leachate collection system, which collects leachate from the north face of the landfill, has been operational since November 1996. WQPS (concentration limits) are not required for leachate because it is collected and removed for disposal,rather than discharged. According to the Operations Manager, the LCRS operated effectively during the fourth quarter 2009. Leachate samples were collected from the pond on a monthly basis and analyzed in the field for pH and specific conductance. In addition to monthly monitoring, the leachate is sampled annually during the fourth quarter monitoring period for the parameters listed in Table 2-1. Results of monthly field monitoring measurements and analytical results for the fourth quarter 2009 are presented in Table 3-5. As shown on Table 3-5, seven dissolved metal constituents were detected with five measured above the PQL; and seven VOCs were detected with three measured above the PQL. No SVOCs, pesticides, or herbicides were detected in the leachate sample collected during the fourth quarter 2009 monitoring period. Review of the November 2009 leachate sample data indicates no new COCs were detected, and therefore, no retesting is required. 3.1.9 Groundwater Treatment Facility Operations The Groundwater Treatment Facility(GTF) at the Austin Unit has been operational since 1994 to mitigate impacts from landfill releases. Currently, contaminated groundwater is extracted from four wells (EW-1, EW-2, EW-3R, and EW-4), treated, and discharged to an infiltration pond. During the monitoring period, the GTF treated 17,553,200 gallons of groundwater at an average flow rate of 124 gallons per minute, or 179,114 gallons per day. During the monitoring period, it is calculated that the GTF removed approximately 2.17 pounds of VOCs. D:\2009_0017TA_4Q09.doc 12 GeoLogic Associates