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1 <br /> 1 <br /> CALIFORNIA LABORATORY SERVICES <br /> 12/17/04 14:20 <br /> APEX Envirotech Inc.-Gold River Project: Moore Petroleum <br /> 11244 Pyrites Way CLS Work Order 4:CNL0428 <br /> Y Y Project Number; ERA02.004 COC#:57769,56128,56129 <br /> Gold River,CA 95670 Project Manager: Rich Johnson 1 <br /> Volatile Organic Compounds by EPA Method 8260B - <br /> Quality Control <br /> ! Deporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch CN09597-`EPA 5030 Soil MS <br /> LCS(CN09597-BSI) Prepared&Analyzed: 12/14/04 <br /> Methyl tert-butyl ether 49.2 5.0 µg/kg 50.0 98.4 60-140 <br /> Surrogate:Toluene-d8. 45.8 50.0 91.,6 60-140 <br /> LCS Dup(CN09597-ESDI) Prepared&Analyzed: 12/14/04 F <br /> Methyl tett-butyl ether' 41.4 5.0 µg/kg 50.0 82.8 60-140 17.2 30 f{ <br /> t <br /> Surrogate:Toluene-d&. 44.0 50.0 88.0 60-140 k <br /> Matrix Spike(CN09597-114SI) Source: CNL0428-25 Prepared&Analyzed: 12/I4/04 <br /> Methyl tert-butyl ether 42.6 5.0 gg/kg 50.0 ND 85.2 60-140 <br /> t ' ^'Surrogate:Toluene-d8 44.3 50.0 88.6 60-140 TT <br /> LYr�� <br /> Batch CN09632-:EPA 5030 Soil MS <br /> { Blank(CN09632-BLKI) Prepared&Analyzed: 12/15/04 <br /> Di-isopropyl ether ND 5.0 pg/kg <br /> Ethyl tert-butyl ether ND 5.0 <br /> Methyl tert-butyl ether ND 5.0 " <br /> tent-Amyl methyl ether ND 5.0 " <br /> Tert-butyl alcohol ND 50 <br /> 1,2-Dibromoethane(EDS) ND 5.0 " <br /> t 1,2-Dichloroethane ND 5.0 <br /> Surrogate:Toluene-d8 45.6 50.0 91.2 60-140 <br /> LCS(CN09632-BSI) Prepared&Analyzed: 12/15/04 <br /> Methyl Cert-butyl ether 46.6 5.0 jig/kg 50.0 93.2 60-140 <br /> 1 <br /> Surrogate:Toluene-d8 45.4 50.0 90.8 60-140 <br />{ <br /> 4 <br />{ <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 />