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collection. However, due to the limited sample volumes, lysimeter samples were only analyzed for select inorganic constituents and/or VOCs. As shown in Table 2-6, diisopropyl ether was measured above the PL in the sample collected from lysimeter LY-A; t-butyl alcohol was measured above the PQL in the samples collected from lysimeters E-2 and LY-BG 1; and chloromethane was measured at a trace concentration in the sample collected from lysimeter E-2. 2.1.6 Surface Water Monitoring Site run-on and run-off control facilities are designed to effectively channel surface water to site stormwater/sedimentation ponds. According to the Operations Manager,no surface water was discharged from the facility during the reporting quarter. During the fourth quarter 2008 monitoring period, no surface-water was observed at monitoring stations FSW-1 and FSW-2, and as a result, surface water samples were not collected. 2.1.7 Leachate Monitoring Leachate sumps are inspected for the presence of leachate and observations are recorded at least weekly by Forward Landfill personnel. If leachate is detected in a sump, it is pumped into the surface impoundment(W F) for evaporation. During the fourth quarter 2008, leachate was observed at holding areas WMU D-89, WMU D-93/94, WMU D-01, WMU D-02, WMU FU-03, WMU FU-04, WMW FU-05, and WMU FU-06. The other holding areas were reported to be dry by Forward Landfill personnel. Freeboard at WMU-F ranged from approximately 8.5 feet to 12.08 feet during the fourth quarter 2008 monitoring period. Appendix A presents copies of the leachate logs and the freeboard observation logs. Leachate samples were collected 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 2008 are presented in Table 2-7. As shown on Table 2-7, eight dissolved metal constituents were measured with six above their PQL; nine VOCs were measured with eight above their PQL; and eight semi-volatile organic compounds (SVOCs)were measured with six above their PQL in the leachate sample collected during the fourth quarter 2008 monitoring period. No herbicides or pesticides were detected in the leachate sample. The results of the annual leachate sample indicate that there was one potentially new COC (2,4-dichlorophenol). Verification testing of leachate for this SVOC (2,4- dichlorophenol) will be performed in May 2009. 2.2 SUMMARY Groundwater quality conditions beneath the Forward Unit during the fourth quarter 2008 monitoring period are generally similar to those observed in previous monitoring periods. During the fourth quarter 2008 monitoring period, five new historical intrawell maximum values were measured in samples collected from groundwater monitoring wells. D:\2008_0010\FA_4Q08.doc 7 Geologic Associates