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l <br /> CALIFORNIA LABORATORY SERVICES <br /> { 02/24/0510:20 <br /> APEX Envirotech Inc.-Gold River Project: Moore Petroleum <br /> l 1244 Pyrites Way Project Number: ERA02.004 CLS Work Order#: COB0684 <br /> Gold River,CA 95670 Project Manager: Rich Johnson COC#:None <br /> Volatile Organic Compounds by EPA Method 8260B.- Quality Control f <br /> Reporting Spike Source °/GREC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch C001353-EPA 5030 Water MS <br /> Blank(CO01353-BLKI) Prepared&Analyzed:02/21/05 <br /> Di-isopropyl ether ND 0,50 pg/L <br /> I` <br /> Ethyl tert-butyl ether ND 0.50 " <br /> Methyl tert-butyl ether ND 0.50 <br /> tert-Amyl methyl ether ND 0.50 <br /> Tert-butyl alcohol ND 5.0 " <br /> s <br /> Surrogate:Toluene-d8 10.0 10.0 100 72-125 <br /> } <br /> LCS(CO01353-BSL) Prepared&Analyzed:02/21/05 i <br /> Methyl tert-butyl ether 17.5 0.50 µg/L 20.0 87.5 52-130 <br /> Surrogate:Toluene-d8 10.4 10.0 104 72-125 <br /> 1 <br /> LCS Dup(0001353-BSDI) Prepared&Analyzed:02/21/05 <br /> Methyl tert-butyl ether 20.2 0.50 µglL 20.0 101 52-130 14.3 30 <br /> f' Surrogate:Toluene-d8 10.2 10.0 102 72-125 <br /> r <br /> I <br /> } <br /> S <br /> } <br /> E , <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova, CA 95742 www.californialab.com 916-638-7301 Fax: 916-638-4510 <br />