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CALIFORNIA LABORATORY SERVICES <br /> 06/27/03 11:03 <br /> APEX Envirotech Inc.-Gold River Projcct: Arch Road Card Lock <br /> 11244 Pyrites Way Project Number: EV03.001 CLS Work Order#:CD9F0930 <br /> Gold River,CA 95670 Project Manager: Kasey Jones COC#:40368 <br /> Volatile Organic Compounds by EPA Method.8260B- Quality Control <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch CF32704-EPA 5030 Soil MS <br /> Blank(CF32704-BLKI) Prepared&Analyzed:06/26/03 <br /> 1,2,4-Trimethylbenzene ND 5.0 pg/kg <br /> Vinyl chloride ND 10 " <br /> Xylenes(total) ND 10 " <br /> Surrogate:1,1-Dichloroethene-d4 42.1 50.0 84.4 50-115 <br /> Surrogate:Tohtene-d8 - 49.5 50.0 99.0 62-125 <br /> Surrogate:4-BromoJluorobenzene 47.7 50.0 95.4 50-118 <br /> LCS(CF32704-BSI) Prepared&Analyzed:06/26/03 R-01 <br /> Benzene 44.5 5.0 }ig/kg 50.0 89.0 64-135 <br /> Chlorobenzene 150.7 5.0 50.0 101 67-133 <br /> 1,1-Dichloroethene 37.6 5.0 50.0 75.2 53-137 <br /> Toluene 50,8 5.0 50.0 102 61-138 <br /> Trichloroethene 46.6 5.0 50.0 93.2 64-130 <br /> Surrogate:1,2-Dichloroeihone-d4 33.2 50.0 66.4 50-115 <br /> Surrogate:Toluene-d8 46.7 50.0 93.4 61-125 <br /> Surrogate:4-BromoJluorobenzene 44.0 50.0" 88.0 50-118 <br /> LCS Dup(CF32704-BSDI) Prepared&Analyzed:06/26/03 <br /> Benzene 47.2 5.0 .pg/kg 50.0 94.4 64-135 5.89 30 <br /> Chlorobenzene50.2 5.0 50.0 100 67-133 0,991 30 <br /> 1,1-Dichloroethene 36.2 . 5.0 50.0 72.4 53-137 3.79 30 <br /> Toluene 44.4 5.0 50.0 88.8 61-138 13.4 30 <br /> Trichloroethene 48.5 5.0 50.0 97.0 64-130 4.00 30 <br /> Surrogate: 1,2-Dichloroethane-d4 36.0 50.0 72.0 50-125 <br /> Surrogate:Toluene-d8 43.4 50.0 86.8 62-125 <br /> Surrogate:4-BromoJluorobenzene 46.6 50.0 93.2 50-118 <br /> i <br /> Matrix Spike(CF32704-MSI) Source: CMF0930-01 Prepared&Analyzed:06/26/03 <br /> .Benzene 38.3 5.0 pg/kg 50.0 ND 76.6 58-139 <br /> Chlorobenzene 47.6 5.0 50.0 ND 95.2 62-134 <br /> 1,1-Dichloroethene 36.3 5.0 50.0 ND 72.6 53-152 <br /> CA DOHS FLAP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova, CA 95742 www.californialab.com 916-638-7301 Fax: 916-638-4510 <br />