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CALIFORNIA LABORATORY SERVICE ' ' <br /> S � . <br /> . f i <br /> 10/28/03 16:48 <br /> SHAW,E&I Inc.(Sacramento) Project: Parkinson's Arco,Stockton p` <br /> 1326 North Market Blvd. Project Number: 8800401A/01060000 CLS Work Order#:CMJ0515 <br /> Sacramento CA,95834 , Project Manager: David Herzog COC##:206765 <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control ~ <br /> .�..3 <br /> T Reporting Spike Source %REC RPD k <br /> Analyte Result Limit Units Level Result %RP-C Limits RPD Limit Nates <br /> Batch CJ31539-EPA 5030 Water MS <br /> LCS631539-BS1 ? <br /> ( ) Prepared&Analyzed: 10/15/03 , <br /> Methyl tert-butyl ether 21.6 0.50 ug/L 20.0 108 52-130 <br /> Surrogate:Toluene48 9.67 10.0 96.7 72-125 <br /> LCS Dup(CJ31539-BSDI) Prepared&Analyzed: 10/15/03 <br /> Methyl tent-butyl ether 19.9 0.50 µg/L 20.0 99.5 52-130 8.19 30 <br /> Surrogate:Toluene-d8 9.44 10.0 94.4 72-125 <br /> y <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 />