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Sequoia N �8��'� <br /> Walnut creek,CA 945% <br /> 4 (925)988-%W <br /> Analytical FAX(925)988-9673 <br /> ttler Ryan,Inc -Dubhn Project. Unocal <br /> 6747 Sierra Court Slut,J Project Number- Unocal#5886 Reported <br /> Dublin 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 /> ,cyte Result Lumt Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-8I(W003053-14)Water Sampled 29-Feb-0012 11 Received 01-Mar-00 18-15 <br /> Ethanol ND 500 ug4 1 OC10011 10-Mar-00 10-Mar-00 EPA 8260A <br /> tert-Butyl alcohol ND 100 " <br /> Methyl tert-butyl ether 53 20 <br /> Di-isopropyl ether ND 20 » » » » » <br /> Ethyl tert-butyl ether ND 20 » » » » » » <br /> tert Amyl methyl ether ND 20 <br /> Surrogate Dtbromofluoromethane 106% 50-150 <br /> Surrogate 1,2Dchloroethane-d4 112% 50-150 " <br /> MW-8D(W003053-15)Water Sampled 29-Feb-0012 56 Received-01-Mar-0018 15 <br /> Ethanol ND 500 ugA 1 OC10011 10-Mar-00 10-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 tent butyl ether ND 20 <br /> .ankert-Amvl methyl ether ND 20 <br /> rrogate Dibromofluoromethane 104% 50-150 <br /> Surrogate 1,2 Dichloroethane-d4 114% 50-150 " <br /> MW-9S(W003053-16)Water Sampled 29-Feb-00 09 21 Received 01-Mar-0018 15 <br /> Ethanol ND 500 ug/1 1 OC10011 10-Mar-00 10-Mar-00 EPA 8260A <br /> tert-Butyl alcohol ND 100 " <br /> Methyl tert-butyl ether ND 20 <br /> D1-isopropyl ether ND 20 <br /> Ethyl tett-butyl ether ND 20 » » <br /> tent-Amyl methyl ether ND 20 <br /> Surrogate Dtbromofhtoromethane 104% 50-150 <br /> Surrogate 1,2-Drchtoroethane-d4 112% 50-150 " <br /> Sequoia Analytical-Walnut Creek 77w results in dus report apply to the smiles analyzed in accordance with the chain of <br /> custody document 77as mudyucal report must be repnodaced in its enttray <br /> Page 18 of 27 <br />