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404 N <br /> Sequoia Creek vCA I98 <br /> Walnut Geek CA 94598 <br /> 45)— (925)988-9600 <br /> FAX(925)988-%73 <br /> Analytical wwws,eguoialIat*wrn <br /> Gettler Ryan,Inc -Dubhn Project Chevron <br /> 6747 Sierra Court Surie J Project Number Chevron#9-6258 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 26-Jan-01 12 35 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical -Walnut Creek <br /> i <br /> Reporting <br /> Analyte Result Lurut Uruts Dilution Batch Prepared Analyzed Method Notes <br /> MW-1 (W101129-02)Water Sampled 02-0an-01 10 15 Received 05-Fan-01 11 55 <br /> Ethanol ND 500 u0 1 1A10025 10-Jan-01 10-Jan-0t EPA 8260B <br /> tett-Butyl alcohol ND 50 <br /> Methyl tert-butyl ether ND 20 <br /> Di-isopropyl ether ND 20 <br /> Ethyl tert-butyl ether ND 20 <br /> tent-Amyl methyl ether ND 20 <br /> Surrogate Dtbromofluoromethane 960% 50-150 " <br /> Surrogate 1 2 Dtchloroethane-d4 720% 50-150 " <br /> MW-2(W101129-03)Water Sampled 02-Fan-01 10 45 Received 05-.Fan-01 11 55 <br /> Ethanol ND 500 UEA t 1A10025 10-Jan-01 10-Jan-01 EPA 8260B <br /> tert-Butyl alcohol ND 50 ^ ^ ^ <br /> Methyl tett butyl ether ND 20 ^ ^ ^ <br /> Di-isopropyl ether ND 20 <br /> ifttert-butyl ether ND 20 <br /> AMIRmy]methyl ether ND 20 <br /> Surrogate Drbromo,fluonvmed=e 960% 50-150 " <br /> Surrogate 1,2-Dichloroethane-d4 76 0% 50-150 " <br /> MW-3(W101129-04)Water Sampled 02-Fan-01 11 18 Received 05-Jan-01 11 55 <br /> Ethanol ND 500 ug/I 1 1A10025 10-Jan-01 10-Jan-01 EPA 826013 <br /> tert-Butyl alcohol ND 50 ^ ^ ^ <br /> Methyl tert-butyl ether ND 20 ^ ^ <br /> Di-isopropyl ether ND 20 <br /> Ethyl tert butyl ether ND 20 <br /> text Amyl methyl ether ND 20 " ^ <br /> Surrogate D:bromofluoromethane 94 0% 50-150 " <br /> Surrogate 1,2-Dtchloroetharne-d4 720% 50-150 " <br /> SW Analytical-Walnut Creek The results on rhos report apply to the samples analysed in accordance with rhe chain of <br /> custody document Tins analytical report must be reproduced in its entmety <br /> Page 4 of 10 <br />