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404 N. YTlget Lane <br /> Sequoia walnut Creek.CA 94598 <br /> 1 4 (925)988-9600 <br /> 491 - Analytical FAX(925)988-9673 <br /> ttler Ryan,Inc -Dublin Project Unocal <br /> 747 Sierra Court Scute J Project Number Unocal 11 5886 Reported <br /> Dubhn CA,94568 Project Manager Deanna L Harding 17-Mar-00 09 54 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result Lunn Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-IOS(WO03053-19)Water Sampled 29-Feb-0013 46 Received 01-Mar-00 18 15 <br /> Purgeable Hydrocarbons ND 50 uga 1 0006003 06-Mar-00 06-Mer-00 EPA <br /> Y� 8015MI8020 <br /> Benzene Nil 050 <br /> Toluene ND 0 50 " <br /> Ethylbenzene ND 0 50 <br /> Xylenes(total) ND 0 50 " <br /> Methyl tert butyl ether ND 25 <br /> Surrogate a,a,a-Tri luorotoluene 126% 70-130 " <br /> MW-10I(WO03053-20)Water Sampled 29-Feb-001426 Received 01-Mar-001815 <br /> Purgeable Hydrocarbons ND 50 ug/I l 0006001 06-Mar-00 O&Mar-00 EPA <br /> 8o 15M/8020 <br /> Benzene ND 0 50 <br /> Toluene ND 050 " » <br /> Ethylbenzene ND 0 50 » » <br /> Xylenes(total) ND 050 <br /> Allkkthvl cert-butyl ether 13 25 » " <br /> rrogate a,a,a-Trtfluorotoluene 112% 70-130 " <br /> MW-IOD(W003053-21)Water Sampled 29-Feb-001501 Received 01-Mar-00 18 15 <br /> Purgeable Hydrocarbons ND 50 ug/1 1 000600I 06-Mar-00 06-Mar-00 EPA <br /> 9015MM20 <br /> Benzene ND 050 <br /> Toluene ND 050 " <br /> Ethylbenzene ND 0 50 <br /> Xylenes(total) ND 050 " <br /> Methyl tert butyl ether ND 25 w n n n n <br /> Surrogate a,a,a-Trifluorotoluene 104% 70-130 <br /> Sequoia Analytical-Walnut Greek The remdu in tins report apply to the samples ami wed to aecmdwwe with the chain of <br /> custody document Thts analytical report must bit reproduced to tts entirety <br /> Page 8 of 27 <br />