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SECOND QUARTER 2007 GROUNDWATER TREATMENT FACILITY MONITORING REPORT <br /> FORWARD LANDFILL WDR ORDER NO.R5-2003-0080 <br /> TABLE 2 <br /> Effluent Monitoring Results <br /> Second Quarter 2007 Groundwater Treatment Facility Monitoring Report,Forward Landfill WDR Order No.R5-2003-0080 <br /> Analysis Date Parameters Units Results <br /> Field Parametersa <br /> 4/6/07 pH pH units 8.1 <br /> Conductivity µmhos/cm 990 <br /> 5/1/07 pH pH units 7.6 <br /> Conductivity µmhos/cm 960 <br /> 6/4/07 pH pH units 7.5 <br /> Conductivity µmhos/cm 800 <br /> Laboratory Analysesb <br /> 4/6/07 All VOCs pg/L Nondetect <br /> Total dissolved solids milligrams per liter 627 <br /> 5/1/07` Methylene chloride pg/L 0.91 Jd <br /> PCE pg/L 0.15 Je <br /> All other VOCs pg/L Nondetect <br /> 5/25/07` All VOCs pg/L Nondetect <br /> 6/4/07 All VOCs pg/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 SW8260B.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 /> dThe MDL and practical quantitation limit(PQL)for methylene chloride are 0.35 and 5.0 pg/L, respectively. <br /> 'The MDL and PQL for PCE are 0.15 and 0.5 pg/L, respectively. <br /> Note: <br /> µmhos/cm = micromhos per centimeter <br /> RDD/071990021(NLH3536.DOC) 6 <br />