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Forward continues to install additional landfill gas extraction wells (as needed), and makes regular adjustments to the landfill gas extraction system to optimize efficiency of the landfill gas extraction system. 3.0 AUSTIN UNIT 3.1 WATER QUALITY MONITORING 3.1.1 Sampling and Laboratory Analyses During the fourth quarter 2009, depth-to-water measurements were recorded in the groundwater monitoring wells on November 16, 2009 and the Austin Unit's DMP and CAP groundwater monitoring wells were sampled by ATC between November 16 and 18, 2009. Both surface water sampling stations were inspected on November 17, 2009 and were reported dry. A single sample set was collected from each sample point with sufficient liquid and submitted to BC for analysis of the parameters stipulated in RWQCB Order No. R5- 2003-0049. Table 2-1 presents the monitoring schedule and summarizes the analytical methods utilized during the current monitoring period. Water quality samples were also analyzed in the field for dissolved oxygen, turbidity, temperature, specific conductance, and pH and recorded on well data sheets. The groundwater monitoring wells and leachate were sampled in accordance with the sampling and analysis procedures detailed in Appendix B. The well data sheets, raw laboratory data, certificates of analyses, and chain-of-custody records related to the sampling program are included in Appendix C. Field and laboratory analyses are summarized in Tables 3-1 through 3-5. 3.1.2 QA/QC Results The QA/QC program completed for the fourth quarter 2009 water quality monitoring event at the Austin Unit included analyses of three field blanks, three trip blanks, three laboratory method blanks, and one duplicate sample. The trip, field, and laboratory method blanks were analyzed for VOCs by EPA Method 8260 and method blanks were analyzed for all required analyses. The results of the QA/QC program indicate that methylene chloride was detected in the field blank collected on November 18, 2009. Review of the primary sample results indicates that methylene chloride was not detected in any of the primary samples collected on November 18, 2009. During the fourth quarter 2009 monitoring event, a duplicate sample was collected from CAP well AMW- 10 and labeled AMW-DUP. Duplicate groundwater results are presented along with the primary data in Table 3-2. With the exception of hexavalent chromium, comparison of the values in the primary sample with the duplicate results indicates that there was good agreement(within 10%). Of note, concentrations less than the PQL were not included in the comparison since these are estimated values. Review of laboratory analysis dates with required holding times indicates that with the exception of TD S in the sample collected from well AMW-12, all samples were D:\2009-0017\FA-4Q09.doc 8 GeoLogic Associates