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FIRST QUARTER 2008 GROUNDWATER TREATMENT FACILITY MONITORING REPORT <br /> FORWARD LANDFILL WDR ORDER NO.R5-2003-0080 <br /> is consistent with typical pumping water levels recorded at EW-2 since 2006.During first <br /> quarter 2008,CH2M HILL began reviewing local and regional groundwater elevation data, <br /> and during second quarter 2008,CH2M HILL will test the efficiency of the pump at EW-2. <br /> Results of the ongoing evaluation will be discussed in the Second Quarter 2008 Monitoring <br /> Report. <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 other than dissolved inorganics were analyzed during first quarter 2008. <br /> Figure 1 shows the effluent monitoring location. Table 2 presents the results of the effluent <br /> monitoring performed during first quarter 2008.Appendix A contains the effluent <br /> monitoring field sampling logs and laboratory results for first quarter 2008. <br /> TABLE 2 <br /> Effluent Monitoring Results <br /> First Quarter 2008 Groundwater Treatment Facility Monitoring Report,Forward Landfill WDR Order No.R5-2003-0080 <br /> Analysis Date Parameters Units Results <br /> Field Parametersa <br /> 1/10/08 pH pH units 8.1 <br /> Conductivity gmhos/cm 970 <br /> 2/5/08 pH pH units 8.1 <br /> Conductivity µmhos/cm 940 <br /> 3/4/08 pH pH units 7.9 <br /> Conductivity µmhos/cm 940 <br /> Laboratory AnalyseSb <br /> 1/10/08` All VOCs gg/L Nondetect <br /> Total dissolved solids milligrams per liter 609 <br /> 2/5/08 All VOCs gg/L Nondetect <br /> 3/4/08° All VOCs gg/L Nondetect <br /> aField parameters were analyzed using a calibrated Horiba U-10 water quality meter. <br /> bVOCs were analyzed using U.S. Environmental Protection Agency Method SW82606.Total dissolved solids <br /> were analyzed using U.S. Environmental Protection Agency Method 160.1. <br /> °Both extraction wells were operational when this sample was collected. <br /> Notes: <br /> µg/L = micrograms per liter <br /> µmhos/cm = micromhos per centimeter <br /> The current WDRs stipulate that the concentration limit for VOCs in the effluent is <br /> nondetect.No VOCs were detected in the GTF effluent samples collected during first <br /> quarter 2008. <br /> RDD/(CLR3846.DOC) 3 <br />