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404 N Wlget Lane <br /> Sequoia Walnut Creek,CA 94598 <br /> (925)988-9600 <br /> Analytical FAX(925)988-9673 <br /> er Ryan,Inc -Dubhn Project Unocal <br /> 6747 Sierra Court Saute J Project Number Unocal#5886 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding l7-Mar-0O 09 54 <br /> Total Purgeable Hydrocarbons (C6-02),BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result Lumt Umts Dilution Batch Prepared Analyzed Method Notes <br /> MW-5D(WO03053-07)Water Sampled 28-Feb-00 12 06 Received 01-Mar-0018 15 <br /> Purgeable Hydrocarbons ND 50 ug/l 1 0006001 06-Mar-00 06-Mar-00 EPA <br /> 8015M/8020 <br /> Benzene ND 050 <br /> Toluene ND 050 <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 <br /> Methyl text-butyl ether ND 25 " <br /> Surrogate a,a,a-Tnfluorotoluene 953% 70-130 " <br /> MW-5S(VV003053-08)Water Sampled 28-Feb-0012 41 Received 01-Mar-0018-15 <br /> Purgeable Hydrocarbons ND 50 ugll 1 0006003 06-Mar-00 06-Mar 00 EPA <br /> 8015M/8020 <br /> Benzene ND 050 " <br /> Toluene ND 050 <br /> Ethylbenzene ND 050 <br /> ylenes(total) ND 050 ^ " <br /> thy.tert butyl ether ND 25IN <br /> Surrogate a,a,a-Trifluorotoluene 103% 70-230 " <br /> MW-7D(W003053-09)Water Sampled 28-Feb-00 10 36 Received 01-Mar-M 18 15 <br /> Purgeable Hydrocarbons ND 50 ug/l 1 0006003 06-Mar-00 06-Mar-00 EPA <br /> 8015MM20 <br /> Benzene ND 0 50 <br /> Toluene ND 0 50 " <br /> 0 " ^ <br /> Ethylbenzene ND 0 5 <br /> Xylenes(total) ND 0 50 <br /> Methyl tert butyl ether ND 25 <br /> Surrogate a,a,a-Tnfluorotoluene 104% 70-130 " <br /> $egl101a Analytical-Walnut Creek The results in dos report apply to the sampleanaceor <br /> s alysed in daace with the amn of <br /> custody documeru.Thu analytical report must be reproducedin its enbroy <br /> Page 4 of 27 <br />