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FOURTH QUARTER 2008 GROUNDWATER TREATMENT FACILITY MONITORING REPORT <br /> FORWARD LANDFILL WDR ORDER NO.R5-2003-0080 <br /> 3.0 Influent and Effluent Monitoring <br /> Under WDR Order No.R5-2003-0080,effluent samples are analyzed as follows: <br /> • Monthly for pH,specific conductivity,and VOCs <br /> • Quarterly for total dissolved solids <br /> • Annually for dissolved inorganics <br /> All parameters were analyzed during fourth quarter 2008. Figure 1 shows the effluent <br /> monitoring location.Table 2 presents the results of the effluent monitoring performed <br /> during fourth quarter 2008. Appendix A contains the effluent monitoring field sampling <br /> logs and laboratory results for fourth quarter 2008. <br /> The current WDRs stipulate that the concentration limit for VOCs in the effluent is non- <br /> detect. No VOCs were detected in the GTF effluent samples collected during fourth <br /> quarter 2008. <br /> Under WDR Order No.R5-2003-0080,influent sampling for pH,specific conductivity, <br /> turbidity,and VOCs are performed semiannually.Influent samples are collected from a <br /> sample port in the header pipe adjacent to the air stripper.Semiannual influent monitoring <br /> was conducted on November 5,2008.Table 3 presents the results of the influent monitoring <br /> performed during fourth quarter 2008.Appendix A contains the influent monitoring field <br /> sampling logs and laboratory results for fourth quarter 2008. <br /> As required by the current WDRs,historical influent and effluent analytical results (detected <br /> analytes only) are tabulated on a compact disc in Appendix B. Appendix B also contains <br /> historical influent and effluent pH and conductivity data.The Appendix B data cover the <br /> period from August 1994 to December 2008.The results are drawn from a CH2M HILL <br /> database and historical reports. <br /> RDDI090210008(NLH3955.DOC) 3 <br />