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above the PQL in well MW-14. CLs were exceeded for one or more monitoring parameters in samples from 12 wells. In accordance with the RPCMP, eight wells with exceedances of CLs that are potential impact constituents will be resampled in November 2007(during the fourth quarter 2007 sampling event), and a second independent sample will be collected in December 2007. The results of the two retests will be submitted to DTSC and RWQCB under separate cover. Historically, similar exceedances of inorganic CLs have been measured and verified in samples collected from DMP monitoring wells at the Forward Unit, followed by no release demonstrations(NRD), which have concluded that the inorganic CL exceedances are likely the result of naturally occurring conditions and therefore not indicative of a release from the Forward Landfill. During the third 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 third quarter 2007, depth-to-water measurements were recorded in the groundwater monitoring wells on August 14, 2007 and the Austin Unit's DMP and CAP groundwater monitoring wells and surface water monitoring stations were sampled by ATC between August 14 and 16, 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 third 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 D:\2007_0043\ForwardAusdn sum07.doc 8 Geologic Associates