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Sequoia 404 , CA Lane <br /> 4 <br /> Walnut Greek, CA 94598 <br /> 00 <br /> Analytical `925)988-96 <br /> FAX(925)988-967373 <br /> Gettler Ryan,Inc -Dublin Protect Unocal <br /> 6747 Sierra Court Suite J Protect Number Unocal#0187 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 09-Mar-00 10 44 <br /> Volatile Organic Compounds by EPA Method 8260A <br /> Sequoia Analytical - Walnut Creek _ <br /> Reporting <br /> Analyte Result Lieut Units Dilution Batch Prepared Analyzed Method Notes <br /> U-1 (W002567-02)Water _Sampled 22-Feb-0012 11 Received 24-Feb-0013 05 <br /> Ethanol ND 500 ug4 I 4008023 07-Mar-00 07-Mar-00 EPA 8260A <br /> tert-Butyl alcohol ND 100 " <br /> Methyl tert-butyl ether ND 20 " <br /> Di-isopropyl ether ND 20 <br /> Ethyl tert-butyl ether ND 20 <br /> tett-Amyl methyl ether ND 20 <br /> Surrogate Dibromofluoromethane 880% 50-150 " <br /> Surrogate 1,2-Diehloroethane-& 900% 50-150 " <br /> U-2 (W002567-03)Water Sampled 22-Feb-0011 35 Received 24-Feb-00 13 05 <br /> Ethanol ND 500 ug/l 1 0008023 07-Mar-00 07-Mar-00 EPA 8260A <br /> tert-Butyl alcohol ND 100 " <br /> Methyl tert-butyl ether ND 20 " <br /> Di-isopropyl ether ND 20 <br /> Ethyl tert_butyl ether ND 20 ^ " " •' <br /> tert-Amyl methyl ether ND 20 <br /> Surrogate Dibromofluoromethane 104% 50-150 " <br /> Surrogate 1,2-Dichloroethane-d4 106% 50-150 <br /> U_3 nn2xint67 SAN AX7-t-r �..-..-.�..� �� r-t nn■e TL o_....--a TA 10-1. nn 1,2 six`-_vv <br /> Ethanol ND 500 upfl t - 0008023 07-Mar-00�07-Mar-00 EPA 8260A <br /> r._.tert-Butyl alcohol -=- - -- - - - - ND �-1-100- -- <br /> Methyl tert butyl ether ND 20 <br /> Di-isopropyl ether 31 - 20 <br /> Ethyl tent-butyl ether ND 20 " <br /> tert-Amyl methyl ether ND 20 " <br /> Surrogate Dibromofluoromethane 102% 50-150 " <br /> Surrogate 1,2-Dichloroethane-d4 1 84% 50-150 S-04 <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain o <br /> custody document This analytical report must be reproduced in its entire* <br /> Page 8 of 22 <br />