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404 N Wiget Lane <br /> Sequoia walnut Creek,CA 94598 <br /> a— ) Analytical (925)988-9600 <br /> FAX(916)988-9673 <br /> www se uaialabs cam <br /> Gettler Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite J Project Number Unocal#2859 Reported 7 <br /> Dublin CA,94568 Project Manager Deanna L Harding 07-Dec-01 08 14 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical - Walnut Creek <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-10 ]11332-10 Water Sampled 17-Nov-01 14 15 Received 20-Nov-01 12 15 <br /> Purgeable Hydrocarbons(C6-Cl 2) 90000 10000-- ug/1 200— IK20001 21-Nov-01 21-Nov-01 EPA <br /> 8015M/8021 <br /> Benzene 4200 100 " <br /> Toluene 34000 l00 " <br /> Ethylbenzene 3400 100 <br /> Xylenes(total) 25000 100 " <br /> Methyl tent-butyl ether(MTBE) ND 500 " <br /> Surrogate a,a,a-Trifluorotoluene 118% 70-130 " <br /> MW-11 (W]11332-11)Water Sampled 17-Nov-01 13 06 Received 20-Nov-01 12 15 <br /> Purgeable Hydrocarbons(C6-C12) 30000 10000 u8n 200 1K20001 21-Nov-01 21-Nov-01 EPA <br /> 8015M/8021 <br /> Benzene 840 100 <br /> Toluene 930 100 " <br /> Ethylbenzene 1100 100 " <br /> Xylenes(total) 9400 100 <br /> „ <br /> Methyl tert-butyl ether(MTBE) 590 500 <br /> Surrogate a,a,a-Trifluorotoluene 116% 70-130 " <br /> MW-l2 (W]11332-12)Water Sampled 17-Nov-01 11 50 Received 20-Nov-01 12-15 <br /> Purgeable Hydrocarbons(C6-C12) ND 50 ug/1 1 1K20001 20-Nov-01 20-Nov-01 EPA <br /> 8015M/8021_ __ _ <br /> Benzene ND 050 <br /> - <br />__._Toluene - 1 6 _ _ . _050. " . "__. - -.. Q-28b <br /> Ethylbenzene ND -- 050 <br /> � <br /> Xylenes(total)_— —_ —=0 50 <br /> Methyl tert-butyl ether(MTBE) ND 2 5 <br /> Surrogate a,a,a-Trtfluorotoluene 123 % 70-130 " <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the samples analyzed to accordance with the ch <br /> custody document This analytical report must be reproduced in its entt <br /> 5 of 19 <br />