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likely the result of naturally occurring conditions and therefore not indicative of a release 41 from the Forward Landfill. During the second quarter 2007 monitoring period no methane exceeded the regulatory limit of 5 percent in perimeter soil-pore gas probes at the Forward Unit, suggesting an overall improvement in landfill gas at the site. 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 second quarter 2007,depth-to-water measurements were recorded in the groundwater monitoring wells on May 7, 2007 and the Austin Unit's DMP and CAP groundwater monitoring wells and surface water monitoring stations were sampled by ATC between May 7 and 9,2007. 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, surface water monitoring points,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. The results of both field and laboratory analyses are summarized in Tables 3-1 through 3-6. 3.1.2 QA/QC Results The QA/QC program completed for the second quarter 2007 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 are included with the laboratory data in Appendix C. The results of the QA/QC program indicate that chloroform was detected above the PQL in several QA/QC field blanks during the second quarter 2007 monitoring event. Review of the primary sample results indicates that chloroform was detected in one of the primary samples collected and was flagged as a suspected field/laboratory contaminant. Duplicate samples were collected from CAP well AMW-10 and labeled AMW-DUP. Duplicate groundwater results are presented along with the primary data in Table 3-2. D:12007_00431FonvardAusBn_sF07.doc 8 GeoLogic Associates