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11 Water Quality Monitoring Report Forward Landfill with the exception of FU -05 all of the lysimeters were reported dry or there was insufficient soil -pore liquid (< 5 mL) for analysis. As summarized on Table 2-613, seven VOCs were detected in the lysimeter sample collected from lysimeter FU -05. 3.1.9 Leachate/Surface Impoundment Monitoring Leachate sumps and surface impoundments are inspected weekly by Forward Landfill personnel. If leachate is detected in a sump, it is pumped into the surface impoundment WMU F (West) for evaporation. During the second quarter 2016, leachate was observed at holding areas WMU FU -03, WMU FU -04, WMU FU -05, WMU FU -06, WMU FU -13, and WMU FU -14 and a total of 265,600 gallons of leachate was removed from the lined areas at an average rate of 2,919 gallons per day. For surface impoundment WMU-F (West) freeboard ranged from approximately 6.08 to 6.58 feet during the second quarter 2016 monitoring period. Appendix A presents copies of the leachate observation logs, freeboard observation logs, and surface impoundment monitoring log. Leachate samples were collected on a quarterly basis and analyzed in the field for pH, specific conductance, temperature, and turbidity. The results of quarterly field monitoring measurements for the second quarter 2016 are presented in Table 3-7. 3.1.10 Surface Water Monitoring Site run-on/run-off control facilities are designed to effectively channel surface water to site stormwater/sedimentation ponds. According to the Operations Manager, there were no changes to run-on/run-off control and no discharges to surface water during the reporting period. Surface water monitoring stations ASW -1 (upstream) was sampled on May 2, 2016, while surface water station ASW -2 (downstream) was reported dry during multiple inspections for the second quarter 2016 monitoring period. Del -Tech checked surface water station ASW -2 for water bimonthly on April 15, April 29, May 9, May 27, June, 13, and on June 27, 2016 for the second quarter 2016 monitoring period. Table 3-8 summarizes the current analytical results of surface water samples collected at the Austin Unit. As shown on Table 3-8, toluene (1.2 µg/L) was detected above the PQL in the sample collected from background (upstream) surface water station ASW -1; no other CLs were exceeded at ASW -1 during the monitoring period. Given the fact that ASW -1 is the background surface water station and toluene is a common field contaminant associated with gasoline, the CL exceedance for toluene is attributed to field contamination upgradient of the landfill. Since surface water station ASW -1 is currently dry, verification sampling will be performed during the next sampling event when flow is reported at ASW -1. M:\ 2016.0007\FA 2Q16.docx 13