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Sequoia r e w] lane <br /> Walnut Creek CAA 94598 <br /> 4 (925)988-9600 <br /> 673 <br /> a_� Analytical FAX equo gabs coin <br /> www sequolalabs tom <br /> Gettler Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite J Project Number Unocal 1#0123 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 20-Jul-0011 19 <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 /> TB-LB(W006495-01)Water Sampled 19,Jun-00 00 00 Received 20-Jun-00 17 30 <br /> Purgeable Hydrocarbons ND 50 ug/I 1 OF28001 28-Jun-00 28-Jun-00 EPA <br /> 8015M/8020 <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether ND 25 " <br /> Surrogate a,a,a-Tnfluorotoluene 937% 70-130 " <br /> U-1 (W006495-02)Water Sampled 19-Jun-0012 42 Received 20-Jun-00 17 30 <br /> Purgeable Hydrocarbons ND 50 ugfl 1 OF28001 28-Jun-00 28-Jun-00 EPA <br /> 8015M/8020 <br /> Benzene ND 050 <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 <br /> Methyl tert-butyl ether ND 2 5 " <br /> Surrogate a,a,a-Tnfluorotoluene 917% 70-130 " <br /> U-2(W006495-03)Water Sampled 19-Jun-00 13 10 Received 20-Jun-0017 30 <br /> Purgeable Hydrocarbons ND 50�ugil 1 OF28001�28-Jun-0028 Jun-00 EPA <br /> 8015M/8020 <br />—Benzene ND 0 50 " <br /> Toluene ND 050 " <br />-- -Ethylbenzene = - = - - - - ND ---=-050 <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether ND 25 <br /> Surrogate a,a a-Tnfluorotoluene 900% 70-130 " <br /> Sequoia Analytical-Walnut Creek The results to this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced to its entirety. <br /> Page 2 of 20 <br />