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3.1.6 Domestic Well Monitoring <br /> Two domestic wells(7898-A and 8106-A)were sampled on May 28, 2010. Table 3-3 <br /> summarizes the current analytical results for the domestic well samples collected. In the <br /> sample collected from well 7898-A,PCE was measured above the PQL and DCDFM and <br /> PCE were measured at trace concentrations. In the sample collected from well 8106-A, <br /> DCDFM, PCE, and TCE were measured above the PQL and 1,1-DCA and cis-1,2,-DCE <br /> were measured at trace concentrations. <br /> 3.1.7 Surface Water Monitoring <br /> Surface-water sampling was conducted on June 1, 2010 and the results are summarized <br /> on Table 3-5. During the second quarter 2010 monitoring event, only surface water <br /> monitoring station ASW-1 had sufficient water to collect a sample,while surface-water <br /> monitoring station ASW-2 was reported dry. <br /> 3.1.8 Leachate Monitoring <br /> According to the Operations Manager, no leachate was taken off site during the second <br /> quarter 2010. The leachate collection system, which collects leachate from the north face <br /> of the landfill, has been operational since November 1996. WQPS (concentration limits) <br /> are not required for leachate because it is collected and removed for disposal, rather than <br /> discharged. According to the Operations Manager,the LCRS operated effectively during <br /> the second quarter 2010. <br /> Leachate samples were collected from the pond on a monthly basis and analyzed in the <br /> field for pH and specific conductance. The results of monthly field monitoring <br /> measurements are presented in Table 3-6. <br /> 3.1.9 Groundwater Treatment Facility Operations <br /> The Groundwater Treatment Facility(GTF) at the Austin Unit has been operational since <br /> 1994 to mitigate impacts from landfill releases. Currently, impacted groundwater is <br /> extracted from four wells (EW-1,EW-2,EW-3R, and EW-4),treated, and discharged to <br /> an infiltration pond. During the monitoring period,the GTF operated continuously and <br /> treated 18,504,700 gallons of groundwater at an average flow rate of 155 gallons per <br /> minute, or 222,948 gallons per day. During the monitoring period,the GTF removed <br /> approximately 6.61 pounds of VOCs. . <br /> 3.2 SUMMARY <br /> Groundwater quality conditions beneath the Austin Unit during the second quarter 2010 <br /> monitoring period were generally similar to historical results. CLs were exceeded in <br /> DMP wells AMW-6, AMW-13, and AMW-14, however, with the exception of the <br /> barium concentration measured in well AMW-14, no CLs were exceeded for constituents <br /> D:U010_0013\FA_2Q 10.doc <br /> 12 GeoLogic Associates <br />