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• r <br /> `N Wget Lane <br /> Sequoia <br /> Walrntt Creek,CA 94598 <br /> (925)988-9600 <br /> FAX(9Z5)988-9673 <br /> Analytical <br /> rDubher Ryan,Inc -Dublin Project Unocal <br /> n <br /> 47 Sierra Court Scute 1 Project Number Unocal#5886 Reported <br /> CA,94568 Project Manager Deanna L Harding 17-Mar-00 09 54 <br /> Volatile Organic Compounds by EPA Method 8260A <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-101(WO03053-20)Water Sampled 29-Feb-0014 26 Received 01-Mar-0018 15 <br /> Ethanol ND 500 Ug/1 I OC10011 10-Mar-00 I1-Mar-00 EPA 8260A <br /> tert-Butyl alcohol ND 100 <br /> Methyl tert-butyl ether 11 20 <br /> D1-isopropyl ether ND 20 " <br /> Ethyl tert-butyl ether ND 20 w <br /> tert-Amyl methyl ether ND 20 " <br /> Surrogate Dtbromafluoromethane 108% 50-150 <br /> Surrogate 1,2DichIoroedume-M 114% 50-150 " <br /> MW-10D(WO03053-21)Water Sampled 29-Feb-00 15 01 Received 01-Mar-0018 15 <br /> Ethanol ND 500 uga 1 OC10011 l0-Mar-00 11-Mar-00 EPA S260A <br /> tert-Butyl alcohol ND 100 <br /> Methyl tett-butyl ether ND 20 <br /> DL-isopropyl ether ND 20 " <br /> Ethyl tert butyl ether ND 20 <br /> ,dftwt-Amvl methyl ether ND 20 <br /> rrogate Dibromofluoromethane 106% 50-150 " <br /> Surrogate 1,1-Dichloroethane-d4 114% 50-150 " <br /> Sequoia Analytical-Walnut Creek The results in flus report apply to the samples arabmed in accordance with the chain of <br /> cunody doeumait This analytical report must be reproduced in its enttrery <br /> Page 20 of 27 <br />