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Is <br /> -.!.-� Sequoia 8Hi JanCA <br /> 'I"`'�`' Morgan Hill CA 95037 <br /> (408)776 9600 <br /> � Analytical FAX(403)7826308 <br /> www sequoialabs coin <br /> 0 <br /> Secor-Rancho Cordova(ARCO) Project ARCO#4932,Stockton,CA MNJ0793 <br /> 3017 Kilgore Rd Suite 100 Project Number 63964 Reported <br /> Rancho Cordova CA,95670 Project Manager Rusty 13enkosky 11/12/04 12 23 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical- Morgan Hill <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Note <br /> EW-7(MNJ0793-18)Water Sampled 10/27/04 16 20 Received 10/29/04 09 30 <br /> tert-Amyl methyl ether ND 250 ug/1 500 4KO4005 11/04/04 11/05/04 EPA 8260B <br /> Benzene ND 250 " <br /> tert-Butyl alcohol ND 10000 " « <br /> Di-isopropyl ether ND 250 " « <br /> 1,2-Dibromoethane(EDB) ND 250 " ^ <br /> 1,2-Dichloroethane ND 250 <br /> Ethanol ND 50000 <br /> Ethyl tert-butyl ether ND 250 " " " PE <br /> Ethylbenzene ND 250 <br /> Methyl tert-butyl ether 27000 250 " <br /> Toluene ND 250 " « <br /> Xylenes(total) ND 250 « " <br /> Gasoline Range Organics(C4-C12) ND 25000 « " <br /> Surrogate 1,1-Dichloroethane-d4 85% 78_119 <br /> Sequoia Analytical-Morgan Hill The results in this report apply io the samples analyzed in accordance with the chain of <br /> custody document Unless otherwise stated results are reported on a wet weight basis <br /> This analytical report must be reproduced in its entirety <br /> Page l2 of 22 <br />