Laserfiche WebLink
FOURTH QUARTER 2007 GROUNDWATER TREATMENT FACILITY MONITORING REPORT <br /> FORWARD LANDFILL WDR ORDER NO.R6-2003-0080 <br /> TABLE 3 <br /> Influent Monitoring Results <br /> Fourth Quarter 2007 Groundwater Treatment Facility Monitoring Report,Forward Landfill WDR Order No.R5-2003-0080 <br /> Analysis Date Parameters Units Results <br /> Field Parametersa,b <br /> 01/10/08 pH pH units 6.8 <br /> Conductivity µmhos/cm 1,040 <br /> Turbidity NTU 0 <br /> VOCs° <br /> 11/2/07 d 1,1-Dichloroethane µg/L 0.58 <br /> cis-1,2-Dichloroethylene µg/L 2.2 <br /> Di-isopropylether µg/L 0.20 Je <br /> Tetrachloroethylene µg/L 4.8 <br /> Trichloroethylene µg/L 2.9 <br /> All other VOCs µg/L ND <br /> aField parameters were analyzed using a calibrated Horiba U-10 water quality meter. <br /> bInfluent pH,conductivity,and turbidity were not measured during fourth quarter 2007 because of an oversight <br /> by CH2M HILL.The omission was reported to the CV Water Board on January 8,2008.At the request of the <br /> CV Water Board,an influent sample was collected on January 10,2008,and analyzed for pH,conductivity, <br /> and turbidity;and the results are included in this fourth quarter 2007 report(Atkinson,2008). <br /> `VOCs were analyzed using U.S. Environmental Protection Agency Method SW8260B. <br /> °Both extraction wells were operational when this sample was collected. <br /> eThe MDL and PQL for di-isopropylether are 0.2 and 2 gg/L,respectively. <br /> Note: <br /> NTU = nephelometric turbidity units <br /> During first quarter 2008,effluent samples will be collected monthly and analyzed for pH, <br /> specific conductivity,and VOCs.One quarterly effluent sample will be analyzed for total <br /> dissolved solids.Influent samples will again be collected during second quarter 2008. <br /> 4.0 Works Cited <br /> Atkinson Ross Central Valle Regional Water Quality Control Board.2008. Personal <br /> / Y >� � tY <br /> communication with John Burke/CH2M HILL.January 8. <br /> RDD/080180002(NLH3684.DOC) 6 <br />