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404 N Wlget Lane <br /> Sequoia Walnut Geek CA 94598 <br /> -%W <br /> (925)%6-%W <br /> 1 4 D- FAX(925)988-%73 <br /> www sequolalabs com <br /> Analytical <br /> ip <br /> Gettler Ryan,Inc -Dublin Project Chevron <br /> 6747 Sierra Court Suite J Project Number Chevron#9-3232 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 16-Jan-01 18 13 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result Limit buts Dilution Batch Prepared Analyzed Method Notes <br /> MW-1 (W012635-02)Water Sampled 20-Dec-00 10 36 Received 27-Dec-00 15 33 <br /> 1 1A03015 42 Jan-Ol 03-Tan-01 EPA 8260B <br /> Ethanol ND 500 UO <br /> " <br /> tett-Butyl alcohol ND 50 <br /> Methyl tert-butyl ether ND 2 0 „ <br /> ND 20 <br /> Di-isopropyl ether » <br /> Ethyl tett-butyl ether ND 20 <br /> Cert-Amyl methyl ether ND 20 <br /> Surrogate Dibromofluoromethane 980% 50-150 <br /> Surrogate 1,2-Dtchlaroethane-l4 <br /> 760% 50-150 " <br /> MW-2(W012635-03)Water Sampled 20-Dec-00 11 12 Received 27-Dec-00 15 33 <br /> Ethanol ND 500 ug/1 1 1 A03015 02-Jan-01 03-Jan-O l EPA 8260B <br /> " <br /> tett-Butyl alcohol jam} 50 „ » <br /> Methyl tert butyl ether ND 2 0 " <br /> Di-isopropyl ether ND 2 0 „ <br /> 20 <br /> -butyl ether ND <br /> " <br /> l methyl ether ND 20 " <br /> Surrogate Dibromofluoromed=e 980% 50-150 � <br /> Surrogate 1,2-Dichlonoethane-l4 <br /> 220% 50-150 " S-04 <br /> MW-3(W012635-04)Water Sampled 20-Dec-00 09 44 Received 27-Dec-0015 33 <br /> 1 l A03015 02-Jan-01 03 Jan-Ol EPA$260B <br /> Ethanol ND 500 UO <br /> » <br /> tent-Butyl alcohol 150 50 „ <br /> 20 " <br /> Methyl tert-butyl ether 14 „ » <br /> Di-isopropyl ether ND 2 0 <br /> Ethyl tert-butyl ether ND 2 0 <br /> tett Amyl methyl ether ND 2 0 " <br /> Surrogate Dibromofluoromethane 980% 50-150 " <br /> Surrogate 1,2-Dichloroethane-l4 720% 50-150 " <br /> tS An31yt�Ca1-Walnut Creek The results in this report apply to the samples analysed in accordance with the chain of <br /> custody document.This analytical report must be reproduced in its entrrety <br /> Page 4 of 8 <br />