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MW-9A,which was suspected to be related to the recent placement of a final cover system on the landfill and landfill gas (LFG) generation. In a meeting with the RWQCB on March 9, 2007, the RWQCB agreed to quarterly monitoring of existing groundwater monitoring wells and soil-pore gas probes through May 2008 to evaluate the significance of LFG at the site. Although low-level VOCs continue to be intermittently detected in compliance wells, it is not uncommon to find slight increases (microgram per liter) in the concentrations of VOCs shortly after final cover construction is complete that over time stabilize or decline as the final cover matures and a geochemical equilibrium is reached. During the 2008 monitoring year no NOVs were issued by the LEA or CIWMB and the site is currently in compliance. 7.0 SUMMARY Groundwater quality conditions beneath the French Camp Landfill during the monitoring period are generally similar to those observed in previous monitoring periods. CLs were exceeded for one or more constituents in the samples collected from wells MW-6A, MW-9A, MW-913 and MW-10A, and with the exception of the chloride concentration measured in the sample collected from well MW-10A, none of the constituents that exceeded a CL exhibited a statistically significant increasing trend during the monitoring period. Previous statistical exceedances for chloride and TDS have been identified in samples from well MW-1 OA and a NRD for groundwater monitoring well MW-I OA (Herst, 2005) concluded that the French Camp Landfill has been impacted by saltwater intrusion and the elevated chloride and TDS concentrations measured in well MW-I OA are believed to be the result of this condition and not the result of landfill-related impacts. Organic constituent results indicate chloroform and TCFM were measured above the PQL in the samples collected from wells MW-6A and MW-9A, respectively. Similar concentrations of TCFM have been measured in samples collected from well MW-9A, and in a letter dated January 16, 2007, the RWQCB was notified of the non-statistical indication of a release at well MW-9A, which has been attributed to the recent placement of a final cover system on the landfill and associated landfill gas migration. The results of the retest samples collected from background well MW-6A indicate that no VOCs were detected and the concentration of chloroform in the primary sample was a false positive. The results of water quality analyses completed for surface-water monitoring stations are generally consistent with previous results. During the current monitoring period, no CL were exceeded, and with the exception of turbidity in all three surface-water samples, no statistically significant increasing trends were noted. Since turbidity exhibits a statistically significant increasing trend at background surface water stations SW-1 and SW-2, the increasing trend in turbidity at SW-3 is unlikely to be indicative of an impact from the facility. D:\200"0121FC2SA08.doc — 8 Geologic Associates