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L1 <br />n <br />IFIA, <br />C� <br />[J <br />n <br />C <br />n <br />u <br />n <br />Li <br />fl <br />I� <br />Results flagged with an asterisk (") indicate values outside control criteria. <br />Results flagged with a pound (#) indicate the control criteria is not applicable. <br />Percent recoveries and relative percent differences (RPD) are determined by the software usin2aiges in the calculation which have not been rounded. <br />Printed: 08/03/2006 12:00:03 Form 3A -/Organic <br />P:\STEALTH\CRYSTAL.RPTTorm3DMS.rpt Superset Reference: RR13028 <br />Page I of I <br />COLUMBIA ANALYTICAL SERVICES, INC. <br />QA/QC Report <br />Client: Shaw Environmental <br />& Infrastructure, Inc <br />Service Request: <br />L0600992 <br />Project: Foothill Landfill/791289 <br />(Ground Water) <br />Date Extracted: <br />08/02/2006 <br />Sample Matrix: Water <br />Date Analyzed: <br />08/02/2006 <br />Matrix Spike/Duplicate Matrix Spike Summary <br />Volatile Organic Compounds <br />Sample Name: Batch QC <br />Units: <br />ug/L <br />Lab Code: L0600996-006 <br />Basis: <br />NA <br />Extraction Method: EPA 5030B <br />Level: <br />Low <br />Analysis Method: 8260B <br />Extraction Lot: <br />LWG0601249 <br />Batch QCMS <br />Batch <br />QCDMS <br />LWG0601249-1 <br />LWG0601249-2 <br />Sample <br />Matrix Spike <br />Duplicate Matrix Spike <br />%Rec <br />RPD <br />Analyte Name <br />Result <br />Result Expected <br />%Rec <br />Result Expected <br />%Rec <br />Limits <br />RPD <br />Limit <br />1,1,1 -Trichloroethane (TCA) <br />ND <br />10.1 10.0 <br />101 <br />9.70 <br />10.0 <br />97 <br />65-146 <br />4 <br />25 <br />I,I-Dichloroethane <br />ND <br />9.68 10.0 <br />97 <br />9.41 <br />10.0 <br />94 <br />73-131 <br />3 <br />25 <br />1,1-Dichloroethene <br />ND <br />10.4 10.0 <br />104 <br />9.88 <br />10.0 <br />99 <br />55-151 <br />5 <br />25 <br />1,2-Dichloroethane (EDC) <br />ND <br />9.86 10.0 <br />99 <br />9.83 <br />10.0 <br />98 <br />63-141 <br />0 <br />25 <br />1,2-Dichloropropane <br />ND <br />9.88 10.0 <br />99 <br />9.79 <br />10.0 <br />98 <br />73-126 <br />1 <br />25 <br />1,3,5-Trimethylbenzene <br />ND <br />9.31 10.0 <br />93 <br />9.05 <br />10.0 <br />91 <br />58-142 <br />3 <br />25 <br />1,3 -Dichlorobenzene <br />ND <br />9.33 10.0 <br />93 <br />9.06 <br />10.0 <br />91 <br />72-133 <br />3 <br />25 <br />Benzene <br />ND <br />9.88 10.0 <br />99 <br />9.60 <br />10.0 <br />96 <br />71-131 <br />3 <br />25 <br />Chlorobenzene <br />ND <br />9.43 10.0 <br />94 <br />9.09 <br />10.0 <br />91 <br />74-129 <br />4 <br />25 <br />Chloroform <br />ND <br />9.96 10.0 <br />100 <br />9.95 <br />10.0 <br />100 <br />70-144 <br />0 <br />25 <br />Ethylbenzene <br />ND <br />9.08 10.0 <br />91 <br />8.78 <br />10.0 <br />88 <br />73-133 <br />3 <br />25 <br />Methyl tert-Butyl Ether <br />ND <br />21.7 20.0 <br />108 <br />22.0 <br />20.0 <br />110 <br />63-131 <br />1 <br />25 <br />Tetrachloroethene (PCE) <br />ND <br />9.82 10.0 <br />98 <br />9.38 <br />10.0 <br />94 <br />66-139 <br />5 <br />25 <br />Toluene <br />ND <br />9.67 10.0 <br />97 <br />9.41 <br />10.0 <br />94 <br />73-132 <br />3 <br />25 <br />Trichloroethene (TCE) <br />ND <br />9.67 10.0 <br />97 <br />9.47 <br />10.0 <br />95 <br />58-136 <br />2 <br />25 <br />Vinyl Chloride <br />ND <br />12.8 10.0 <br />128 <br />12.9 <br />10.0 <br />129 <br />67-147 <br />0 <br />25 <br />Results flagged with an asterisk (") indicate values outside control criteria. <br />Results flagged with a pound (#) indicate the control criteria is not applicable. <br />Percent recoveries and relative percent differences (RPD) are determined by the software usin2aiges in the calculation which have not been rounded. <br />Printed: 08/03/2006 12:00:03 Form 3A -/Organic <br />P:\STEALTH\CRYSTAL.RPTTorm3DMS.rpt Superset Reference: RR13028 <br />Page I of I <br />