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r: <br />Water Quality Monitoring Report <br />Forward Landfill <br />1,2-dichloroethene, dichlorodifluoromethane, and trichloroethene was also measured <br />above PQLs in the sample collected from well 8106-A. An estimated trace concentration <br />of one VOC was also measured in the sample from each domestic well. <br />3.1.8 Vadose Zone Monitoring <br />The current vadose-zone monitoring network at the Austin Unit consists of seven <br />lysimeters. The lysimeter locations are shown on Figure 2-1. As recorded in the field <br />notes for lysimeters (Appendix C) and summarized on Table 2-5A, all Austin Unit <br />lysimeters were reported dry, and as a result, no soil -pore liquid samples were collected <br />during the current monitoring period. <br />3.1.9 Leachate/Surface Impoundment Monitoring <br />For the Austin Unit, leachate sumps and surface impoundments are inspected weekly by <br />Forward Landfill personnel. If leachate is detected in a sump, it is pumped into the <br />surface impoundment WMU F (West) for evaporation. During the second quarter 2014, <br />leachate was observed at holding areas WMU FU -03, WMU FU -04, WMU FU -05, WMU <br />FU -06, WMU FU -10, and WMU FU -13. Leachate logs summarizing the total flow and <br />flow rate are presented in Appendix A. For surface impoundment WMU-F (West) <br />Freeboard ranged from approximately 2.32 to 2.70 feet during the second quarter 2014 <br />monitoring period. Appendix A presents copies of the freeboard observation logs and <br />Dissolved Oxygen measurements. <br />Leachate samples were collected on a quarterly basis and analyzed in the field for pH, <br />specific conductance, temperature, and turbidity. The results of quarterly field <br />monitoring measurements for the second quarter 2014 are presented in Table 3-7. <br />3.1.10 Surface Water Monitoring <br />Site run-on and run-off control facilities are designed to effectively channel surface <br />water to site stormwater/sedimentation ponds. According to the Operations Manager, <br />there were no discharges to surface water (waters of the United States) during the <br />reporting period. Surface water monitoring stations ASW -1 (upstream) and ASW -2 <br />(downstream) were reported dry during the second quarter 2014 monitoring period. <br />3.1.11 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. Impacted groundwater is extracted <br />from five wells (EW -1, EW -2, EW -3, EW -3R, and EW -4) that pump groundwater through <br />an air stripper treatment system to remove VOCs. Treated groundwater is discharged to <br />an infiltration pond (constructed in 2003) north of the Austin Road Unit of the Forward <br />Landfill. Due to limited recharge in extraction well EW -3, the well was taken offline and <br />M:\ 2014.0012\FA_2Q14.docx 12 <br />7/29/2014, Rev. 0 <br />