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volatile organic compounds (SVOCs) were measured above their PQL in the leachate sample <br /> 0 collected during the fourth quarter 2009 monitoring period. No herbicides or pesticides were <br /> detected in the leachate sample. The results of the annual leachate sample indicate that there <br /> were no new constituents of concern(COCs) identified, and therefore, verification testing is not <br /> required. <br /> During the fourth quarter 2009 monitoring period, methane concentrations did not exceed the <br /> regulatory limit of five percent in perimeter soil-pore gas probes at the Forward Unit. Forward <br /> continues to install additional landfill gas extraction wells(as needed), and makes regular <br /> adjustments to the landfill gas extraction system to optimize efficiency of the landfill gas <br /> extraction system. <br /> Groundwater quality conditions beneath the Austin Unit during the fourth quarter 2009 <br /> monitoring period are generally similar to historical results. CLs were exceeded in detection <br /> monitoring program wells AMW-6,AMW-7, AMW-12, AMW-13, and AMW-14, and with the <br /> exception of the barium concentration measured in well AMW-14, none of the CL exceedances <br /> exhibited statistically significant increasing trends. Of note, the barium concentration measured <br /> in well AMW-14 (0.25 mg/L) is similar to the historical results measured in this well and is well <br /> below the California primary drinking water standard(1 mg/L). In the corrective action <br /> program (CAP) wells, trend analyses are performed instead of comparison to CLs. During the <br /> current monitoring period, one or more statistically significant increasing trends were noted for <br /> VOC constituents in CAP wells AMW-1, AMW-10, AMW-19, and AMW-19BR, while one or <br /> more decreasing VOC trends were noted in CAP wells AMW-1, AMW-4, AMW-10, and AMW- <br /> 11. The increasing cis-1,2-DCE trends in wells AMW-1 AMW-10, and AMW-19BR suggest <br /> that natural degradation of VOCs is occurring in the vicinity of these wells through reductive <br /> dechlorinization. <br /> During the fourth quarter 2009 monitoring period the leachate results are generally similar to <br /> those observed historically. During the fourth quarter 2009 monitoring period, seven dissolved <br /> metal constituents were detected with five measured above the PQL, and seven VOCs were <br /> detected with three measured above the PQL. No SVOCs, pesticides, or herbicides were <br /> detected in the leachate sample collected during the fourth quarter 2009 monitoring period. <br /> Review of the November 2009 leachate sample data indicates no new COCs were detected, and <br /> therefore, no retesting is required. <br /> According to the Forward Landfill Operations Manager,weekly standard observations have been <br /> conducted during the reporting quarter. The Forward Landfill Operations Manager also reported <br /> that no surface water was discharged during the reporting period. <br /> C:\2009-0017TForwardLtr_4Q09.doc <br /> - - <br />