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r - <br /> t <br /> C� CALIFORNIA LABORATORY SERVICES <br /> j . <br /> 07/21/05 12:05 <br /> APEX Envirotech Inc.-Gold River Project: Moore Petroleum CLS Work Order#: COG0529 <br /> 11244 Pyrites Way Project Number: ERA02,004 <br /> 'r Gold River,CA 95670 Project Manager: Rich Johnson <br /> f Volatile Organic Compounds by EPA Method 8260B- Quality Control <br /> Reporting Spike Source %Rl= RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> t <br /> Batch C005372-EPA 5030 Water MS <br /> Blank(CO05372-BLK1) Prepared&Analyzed:07/18/05 <br /> Di-isopropyl ether ND 0.50 pglL <br /> Ethyl tert-butyl ether ND 0.50 " <br /> Methyl tent-butyl ether ND 0.50 " <br /> tert-Amyl methyl ether ND 0.50 " <br /> Tert-butyl alcohol ND 5.0 " <br /> Surrogale:Toluene-d8 9.83 10.0 98.3 72-125 <br /> LCS(0005372-BS1) Prepared&Analyzed:07/18/05 <br /> Methyl tert-butyl ether 20.2 0.50 µg11. 20.0 101 52-130 <br /> t Surrogate.Toluene-d8 9.89 10.0 98.9 72-125 <br /> r <br /> CLCS Dup(0005372-BSD1) Prepared&Analyzed:07/18/05 <br /> Methyl tert-butyl ether 19.4 0.50 µpfL, 20.0 97.0 52-130 4.04 30 <br /> Surrogate:Toluene-d8 9.85 10.0 98.5 72-125 <br /> i <br /> 4 <br /> i - <br /> i <br /> I <br /> i. <br /> a <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> I <br /> �, 3249 Fitzgerald Road Rancho Cordova, CA 95742 www.californialab.com 916-638-7301 Fax: 916-638-4510 <br />