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404 N Wlget Lane <br /> Sequoia WalnutG ek,CA 9598 <br /> 25)988-9600 <br /> FAX(925)98$-9673 <br /> Analytical www sequoialabscom <br /> tiler Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite J Project Number Unocal#0187 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 22-Jun-00 07 41 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> ,analyte Result Lunt Units Dilution Batch Prepared Analyzed Method Notes <br /> U-13(28')(W006202-07)Water Sampled 07-Jun-00 00 00 Received 08-Jun-00 16 55 P-01 <br /> Purgeable Hydrocarbons 600 50 ugll I OF19006 19-Jun-00 19-Jun-00 EPA <br /> 8015MIS020 <br /> Benzene 200 050 <br /> Toluene 17 050 <br /> Ethylbenzene 21 050 <br /> Xylenes(total) 71 050 " <br /> Methyl tert-butyl ether 50 2 5 <br /> Surrogate a,a,a-Tnfluorotoluene 773% 70-130 " <br /> U-13(69')(WO06202-08)Water Sampled 07-Jun-00 00 00 Received 08-Jun-00 16 55 P-02 <br /> Purgeable Hydrocarbons S00 50 ug/l 1 OF20001 20-Jun-00 20-Jun-00 EPA <br /> 8015M/8020 <br /> Benzene 430 0 50 " <br /> Toluene 21 0 50 " <br /> Ethylbenzene 13 050 " <br /> Ones(total) 87 0 50 <br /> t1hyl Cert-butyl etber 110 25 <br /> Surrogate a a a-Trrfluorotoluene 111 % 70-130 " <br /> I <br /> ota Analytical-Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 4 of 12 <br />