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numerous inorganic constituents were detected in the annual sample. No herbicides or pesticides <br /> were detected. No new COCs were detected above PQLs,and therefore, no verification retesting <br /> is required. <br /> For the Austin Unit,no significant changes in the water quality analytical results were noted. <br /> During the fourth quarter 2012 monitoring period, CLs were exceeded in Detection Monitoring <br /> Program(DMP) wells A&M-6,AIVIW-7,AMW-12,.ANIV-13 and AMW-14. With the <br /> exception of tile barium concentration measured in well AMW-14, none of tile CL exceedances <br /> exhibited statistically significant increasing trends. It should be noted, however,that the barium <br /> concentration measured in the sample collected from well AI&M-14 is within the historical range <br /> of values observed at this well. For the Corrective Action Program (CAP)wells, trend analyses <br /> are performed instead of comparison to CLs. During the current monitoring period, statistically <br /> significant increasing trends were noted for three VOC constituents in CAP well AMW-1, while <br /> one or more VOC constituents were noted as having decreasing trends in CAP wells AMW-I, <br /> A4IW-10, and AMW-1913R. The increasing cis-1,2-dichloroethene trend in well AMW-I <br /> suggests that active reductive dechlorination is occurring in the vicinity of these wells. <br /> The results of the,annual leachate sample collected for the Austin Unit are similar to those, <br /> observed historically, Six VOCs, live SVOCs, 12 dissolved metals,and numerous inorganic <br /> constituents were detected in the annual leachate sample. No herbicides or pesticides were <br /> detected. The SVOC 2-inethylphenol,(o-cresol) was nicasured above its practical quantitation <br /> limit for the first time in the leachate sample. Accordingly, the presence of this constituent will <br /> be verified in retest samples scheduled for the second quarter 2012. <br /> According to the Forward Landfill Operations Manager,standard observations have been <br /> conducted weekly during the reporting quarter. The Forward Landfill Operations Manager also <br /> rell,orted that no surface: water was discharged from the facility during the reporting period. <br /> I certify under penalty of law, that I have personally examined and am familiar with the <br /> information submitted in this document and all attachments, and that based on my inquiry of <br /> those individuals immediately responsible for obtaining this Mrormation, I believe that the <br /> information is true,accurate,and complete, I am aware that there are significant penalties for <br /> submitting false information, including the possibility of fine and imprisonment. <br /> I <br /> If you have any questions regarding this report,please call me at (209) 982-4298. <br /> Sincerely, <br /> 4 ii -Al <br /> Erin Farming <br /> Environmental 'Manager <br /> Attachment <br />