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IMNV-9A on December 2, 2011 and TCFM was confirmed in the retest sample. As presented in <br /> the March 12,2007 letter the RWQC B no further action is necessary since the TCFM <br /> concentration measured in well MW-9A is well below risk-based concentrations. <br /> The results of water quality analyses completed for surface-water monitoring stations are <br /> generally consistent with previous results. No VOCs were detected in the samples collected <br /> from the surface-waterstations during the monitoring period or over the 20t I monitoring year. <br /> A comparison of upgradient(SW-I and SW-2)to downgradient(SW-3)surface-water samples <br /> indicates,generally similar inorganic constituent concentrations in the upgradient and <br /> downgradient surface water station, suggesting that the landfill is not impacting surface water <br /> quality. During the current monitoring period,no Cls were exceeded.and with the exception of <br /> carbonate at surface-water stations SWA and SW-3,and turbidity in all three surface-water <br /> samples,no statistically significant increasing trends were noted. Given that statistically <br /> significant increasing trends were noted at background surface-water points SW-1 and SW-2, <br /> these increasing trends ar;e not believed to be the result of an impact from the landfill. <br /> Field screening results from soil-pore gas monitoring probes indicate that no methane was <br /> measured in soil-pore gas monitoring probes during the monitoring period,or over the past year. <br /> If you have any questions regarding this report,please call me at(858)451-1136, <br /> Sincerely, <br /> Don Litchfield,R.E.A. <br /> Environmental Manager <br /> Attachment <br /> Ctaus-MelmnKr SM 114* <br />