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years are presented in Appendix D. During the 2010 monitoring year, the groundwater flow direction was generally to the north and northeast toward the Austin Unit with an average hydraulic gradient of 0.001 ft/ft. Groundwater quality conditions beneath the Forward Unit during the 2010 monitoring year are generally similar to those observed in previous monitoring years. Low-level VOCs greater than the PQL were intermittently detected in DMP wells W-10, MW-14, MW-22, and MW-23R. On behalf of Forward Inc., GLA prepared a letter report dated February 14, 2001 (RWQCB Case No. 2209), to assess the source and potential impacts of low-level VOCs in groundwater adjacent to the Forward Landfill. The letter report concluded that the sporadic detection of low-level VOCs in groundwater(and lysimeter samples) at the Forward Unit are most likely due to landfill gas from unlined unit WMU- B. Forward has continued to minimize gas related impacts to groundwater by minimizing interim fill areas that promote ponding of water. Forward continues to install additional landfill gas extraction wells, as needed. 4.4.2 Surface Water Site run-on and run-off control facilities are designed to effectively channel surface water to lined holding and evaporation ponds on site. According to the Operations Manager, no surface water was discharged from the facility during the 2010 monitoring year. Surface water station FSW-1 and FSW-2 are sampled quarterly, however,both surface-water stations were reported dry during the first, second, and third quarters of 2010. Comparisons of the water quality data from upgradient(FSW-1) and downgradient (FSW-2) surface water stations during the fourth quarter 2010, indicates generally similar concentrations and that the landfill operations are not impacting surface water quality. 4.4.3 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 the sump it is pumped into the surface impoundment(WMU F) for evaporation. During the 2010 monitoring year, leachate was observed at all of the holding areas except WMU D-87 and WMU D-88 A/B. Freeboard at WMU F ranged from approximately 7.5 feet to 12.08 feet during the 2010 monitoring year. The results of the annual leachate sample collected during the fourth quarter 2010 indicate that there were no new COCs identified. The results of the LCRS gas test conducted in August 2010 at the Forward Unit indicated that an open-air conduit is present across the LCRS unit,allowing sufficient leachate evaporation. Based on freeboard logs, LCRS gas testing, and observations from Forward personnel, the leachate control facilities were operating effectively during the 2010 monitoring year. D:\2010_0013\FA_4Q10.doc 16 Geologic Associates