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CAUFoRmA LABORA TORY SERVICES <br /> Geotrans,Inc.-Sac Project: Safeway-Stockton CLS Work Order#: CMA0727 <br /> 3035 PROSPECT PARK DR. STE.40 Project Number: L571-101 <br /> RANCHO CORDOVA CA,95670 Project Manager: Tim Costello 02/11/03 09:34 <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Reporting Spike Source %REC RFD <br /> Analyte Result Limit Units Level Result %REC Limits RFD Limit Notes <br /> Batch CB30612 -Volatiles <br /> Matrix Spike(CB30612-MSI) Source: CMA0727-02 Prepared&Analyzed:02/05/03 QR-02 <br /> Trichloroethene 32.0 5.0 µg/kg 50.0 0.0 64.0 55-138 <br /> Surrogate:1,2-Dichloroethane-d4 36.2 50.0 72.4 50-125 <br /> Surrogate:Toluene-d8 35.8 50.0 71.6 62-115 <br /> Surrogate:4-Bromofluorobenzene 35.8 50.0 71.6 50-128 <br /> Matrix Spike Dup(CB30612-MSDI) Source: CMA0727-02 Prepared&Analyzed: 02/05/03 QR-02 <br /> Benzene 42.6 5.0 jig/kg 50.0 0.0 85.2 58-139 22.5 30 <br /> Chlorobenzene 38.5 5.0 50.0 0.0 77.0 62-134 4.79 30 <br /> 1,1-Dichloroethene 41.8 5.0 50.0 0.0 83.6 53-152 34.5 30 <br /> Toluene 49.3 5.0 50.0 5.0 88.6 58-139 13.9 30 <br /> Trichloroethene 42.8 5.0 50.0 0.0 85.6 55-138 28.9 30 <br /> Surrogate:l,2-Dichloroethane-d4 36.3 50.0 72.6 50-125 <br /> Surrogate:7-oluene-r.'8 45.3 50.0 90.6 62-125 <br /> Surrogate:4-Bromofluorobenzene 36.1 50.0 72.2 50.128 <br /> Batch CB30631 -EPA 5030 Water MS <br /> Blank(CB30631-BLKI) Prepared&Analyzed:02/06/03 <br /> Di-isopmpyl ether J- ND 0.50 µg/L `-- <br /> Ethyl tert-butyl ether ND 0.50 " <br /> Tert-amyl methyl ether ND 0.50 " <br /> Tert-butyl alcohol ND 10 " <br /> Acetone ND 10 " <br /> Benzene ND 0.50 " <br /> Bromobenzene ND 0.50 " <br /> Bromochloromethanc ND 0.50 " <br /> Bromodichloromethcne ND 0.50 " <br /> Bromoform ND 0.50 " <br /> Bromomethane NO 1.0 " <br /> 2-Butanone ND 10 " <br /> n-Butylbenzene ND 0.50 " <br /> sec-Butylbenzene ND 0.50 " <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> 3249 Fitzl;erala Road Rancho Cordova. CA 95742 www.californialah.cnni 91 6-61R_71f11 PAY-F,_F.tR_dG 1 n <br />