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COLUMBIA ANALYTICAL SERVICES, INC. <br />Results flagged with an asterisk (*) indicate values outside control criteria. <br />lercent recoveries and relative percent differences (RPD) are determined by the software using values in the calculation which have not been rounded. <br />13 <br />ranted: 02/16/2007 08:34:46 Form 3C - Organic Page 1 of 3 <br />:\STEALTH\CRYSTAL.RPT\Form3LCS.rpt SuperSet Reference: RR13372 <br />QA/QC <br />Report <br />Client: Shaw Environmental & Infrastructure, Inc <br />Service Request: P0700116 <br />roject: Foothill Landfill, San Joaquin <br />County/791289 <br />(Leachate Module) <br />Date Extracted: 02/13/2007 <br />ample Matrix: Water <br />Date Analyzed: 02/13/2007 <br />Lab Control <br />Spike Summary <br />Volatile Organic <br />Compounds <br />Extraction Method: EPA 5030B <br />Units: ug/L <br />Analysis Method: 8260B <br />Basis: NA <br />Level: Low <br />Extraction Lot: PWG0700310 <br />Lab Control Sample <br />PWG0700310-3 <br />Lab <br />Control Spike <br />'Analyte <br />u <br />/oRec <br />Name <br />Result <br />Expected <br />%Rec <br />Limits <br />1,1,1,2 -Tetrachloroethane <br />10.0 <br />10.0 <br />100 <br />74-134 <br />1,1 -Trichloroethane (TCA) <br />9.96 <br />10.0 <br />100 <br />70-131 <br />1,1,2,2 -Tetrachloroethane <br />9.85 <br />10.0 <br />99 <br />72-135 <br />1,1,2 -Trichloroethane <br />9.71 <br />10.0 <br />97 <br />79-128 <br />11,2-Trichlorotritluoroethane <br />10.1 <br />10.0 <br />101 <br />59-141 <br />,1-Dichloroethane <br />9.83 <br />10.0 <br />98 <br />76-122 <br />1, 1 -Dichloroethene <br />10.2 <br />10.0 <br />102 <br />64-135 <br />,1-Dichloropropene <br />8.38 <br />10.0 <br />84 <br />71-117 <br />,2,3-Trichlorobenzene <br />8.57 <br />10.0 <br />86 <br />78-128 <br />1,2,3-Trichloropropane <br />10.0 <br />10.0 <br />100 <br />71-131 <br />12,4-Trichlorobenzene <br />8.41 <br />10.0 <br />84 <br />76-127 <br />,2,4-Trimethylbenzene <br />0 <br />9.51 <br />10.0 <br />95 <br />78-129 <br />,2-Dibromo-3-chloropropane <br />17.6 <br />20.0 <br />88 <br />64-137 <br />1,2-Dibromoethane (EDB) <br />9.18 <br />10.0 <br />92 <br />77-129 <br />12 -Dichlorobenzene <br />9.05 <br />10.0 <br />91 <br />77-127 <br />,2-Dichloroethane (EDC) <br />9.48 <br />10.0 <br />95 <br />68-133 <br />1,2-Dichloropropane <br />9.86 <br />10.0 <br />99 <br />77-122 <br />,3,5-Trimethylbenzene <br />9.29 <br />10.0 <br />93 <br />76-129 <br />IF ,3 -Dichlorobenzene <br />8.86 <br />10.0 <br />89 <br />75-130 <br />1,3-Dichloropropane <br />9.45 <br />10.0 <br />95 <br />76-127 <br />,4 -Dichlorobenzene <br />9.14 <br />10.0 <br />91 <br />77-124 <br />,2-Dichloropropane <br />9.62 <br />10.0 <br />96 <br />64-141 <br />-Butanone (MEK) <br />50.4 <br />50.0 <br />101 <br />65-133 <br />2-Chlorotoluene <br />9.36 <br />10.0 <br />94 <br />74-129 <br />49.1 <br />50.0 <br />98 <br />70-128 <br />IHexanone <br />-Chlorotoluene <br />9.16 <br />10.0 <br />92 <br />73-128 <br />4-Isopropyltoluene <br />8.67 <br />10.0 <br />87 <br />75-129 <br />Methyl-2-pentanone (MIBK) <br />48.2 <br />50.0 <br />96 <br />66-132 <br />It cetone <br />51.0 <br />50.0 <br />102 <br />59-134 <br />Acrylonitrile <br />19.5 <br />20.0 <br />98 <br />74-134 <br />Benzene <br />9.25 <br />10.0 <br />93 <br />77-122 <br />tromobenzene <br />9.06 <br />10.0 <br />91 <br />80-126 <br />romochloromethane <br />9.26 <br />10.0 <br />93 <br />78-125 <br />Bromodichloromethane <br />9.91 <br />10.0 <br />99 <br />76-133 <br />12.3 <br />10.0 <br />123 <br />69-145 <br />Fromoform <br />romomethane <br />11.6 <br />10.0 <br />116 <br />46-148 <br />Results flagged with an asterisk (*) indicate values outside control criteria. <br />lercent recoveries and relative percent differences (RPD) are determined by the software using values in the calculation which have not been rounded. <br />13 <br />ranted: 02/16/2007 08:34:46 Form 3C - Organic Page 1 of 3 <br />:\STEALTH\CRYSTAL.RPT\Form3LCS.rpt SuperSet Reference: RR13372 <br />