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was collected from well MW-9A on December 2, 2011 and TCFM was confirmed in the <br /> retest sample. As presented in the March 12, 2007 letter the RWQCB no further action is <br /> necessary since the TCFM concentration measured in well MW-9A is well below risk- <br /> based concentrations. <br /> The results of water quality analyses completed from the surface-water monitoring <br /> stations are generally consistent with previous results. No VOCs were detected in the <br /> samples collected from the surface-water stations during the monitoring period. A <br /> comparison of upgradient(SW-1 and SW-2)to downgradient(SW-3) surface-water <br /> samples indicates generally similar inorganic constituent concentrations in the upgradient <br /> and downgradient surface water station, suggesting that the landfill is not impacting <br /> surface water quality. During the current monitoring period,no CL were exceeded, and <br /> with the exception of carbonate at surface-water stations SW-1 and SW-3, and turbidity <br /> in all three surface-water samples, no statistically significant increasing trends were <br /> noted. Given that statistically significant increasing trends were noted at background <br /> surface-water points SW-1 and SW-2, these increasing trends are not believed to be the <br /> result of an impact from the landfill. <br /> Field screening results from soil-pore gas monitoring probes indicate that no methane <br /> was measured in soil-pore gas monitoring probes during the monitoring period, or over <br /> the past year. <br /> 8.0 REFERENCES <br /> California Regional Water Quality Control Board, Central Valley Region, 2007, "Order <br /> No. R5-2007-0046 Waste Discharge Requirements for Forward Inc. Allied Waste <br /> Industries Inc. for Post-Closure Maintenance of French Camp Municipal Solid <br /> Waste Landfill, San Joaquin County". <br /> CH2M Hill. 2000. Fourth Quarter/Annual 1999 Monitoring Report, Austin Road <br /> Landfill. January. <br /> Herst& Associates ("Herst"). 2005. No Release Demonstration—Second Quarter 2004 <br /> Event, French Camp Landfill. January. <br /> Herst& Associates ("Herst"). 2011. Third Quarter 2011 Semi-Annual Monitoring <br /> Report, French Camp Landfill, California. <br /> C:\2011-0051\FC 2SAII.doc 8 Geo-Logic Associates <br />