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probe SPG-lA in April 2007. Table 7 summarizes the results for the soil-pore gas samples collected during current event at the French Camp Landfill. Methane was detected in all of soil-pore gas probes with the highest concentration measured in the sample from probe SGP-2 (0.155 V%). However, given the fact that probes SGP-4A through 8A are separated from the landfill by the sloughs,these low level methane concentrations may be the result of decomposing organic material in the sloughs. In addition,21 VOCs were detected in the samples from soil-pore gas monitoring probes during the current monitoring period,with the sample from probe SGP-7A containing the highest total concentration of measurable VOCs. 6.0 SUMMARY Groundwater quality conditions beneath the French Camp Landfill during the first quarter 2007 monitoring period are generally similar to those observed in previous monitoring periods. During the first quarter 2007 monitoring period,inorganic CLs were exceeded in DMP wells MW-9A,MW-9B, and MW-10A. In addition, organic constituent results indicate concentrations of TCFM exceed the PQL in the sample collected from well MW-9A,which is likely related to the recently constructed final cover system, and an associated increase in LFG generation. In a meeting with the RWQCB on March 9, 2007,Forward proposed quarterly monitoring of existing groundwater monitoring wells and soil-pore gas probes through May 2008 to evaluate the significance of landfill gas at the site. The results of water quality analyses completed for leachate monitoring well MW-2 indicates that no VOCs were detected in the sample from this well during the current monitoring period. The results of water quality analyses completed for surface-water monitoring stations are generally consistent with previous results and with the exception of bromoform, bromodichloromethane, and dibromochloromethane at background station SW-2,no CL exceedances were noted during the first quarter 2007 monitoring period. Of note, similar concentrations of bromodichloromethane,bromoform, and dibromochloromethane were measured in QA/QC blanks at several landfills during the fourth quarter 2006, and an audit by BC indicated that the VOCs were the result of contaminated VOA containers. Given that SW-2 is a background surface water station and the recent laboratory contamination, it is unlikely that these VOCs are the result of an impact from the facility and further monitoring is necessary to evaluate the significance of these suspect VOCs. Trend analyses indicates that turbidity at surface water stations SW-1, SW-2, and SW-3 depict statistically significant increasing trends. 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. A total of 21 VOCs were detected in the samples from soil-pore gas monitoring probes during the current monitoring period,with the sample from probe SGP-7A containing the highest total concentration of measurable VOCs. In addition,methane was detected in all D:\2003_021\FC_w07.doc 6 Geologic Associates