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strial <br /> Sequoia San Carl s5 CA 9u4070-4111 <br /> 45)— (650) 232-9600 <br /> qwr Analytical <br /> a lytical FAX(650)232-9612 <br /> 1 .j <br /> Gettler-Ryan/Geostrategies(1) Project: Tosco(2) Sampled: 2/22/00 <br /> 6747 Sierra Court,Suite D Project Number: UNOCAL SS#11195 Received: 2/22100 <br /> Dublin,CA 94568 Project Manager: Deanna Harding Reported: 3/7100 <br /> Sample Description: TB-LB <br /> Laboratory Sample Number: L002194-01 <br /> Batch Date Date Specific Method/ Reporting <br /> Analyte Number Prepared Analyzed Surrogate Limits Limit Result Units Notes* <br /> Sequoia Analytical-San Carlos <br /> Total Pureeable Hydrocarbons(C6-021,BTEX and MTBE by DHS LUFT <br /> Purgeable Hydrocarbons as Gasoline 0030003 3/1100 3/l/06 50.0 ND ug/l <br /> Benzene " 0.500 NDIp <br /> Toluene " " " 0.500 ND If <br /> Ethylbenzene 0.500 ND It <br /> Xylenes(total) " " 0.500 ND <br /> Methyl tertbutyl ether " 5.00 ND " <br /> Surrogate: a,a,a-Trif7uorotoluene If 70.0-130 77.9 % <br /> i <br /> i <br /> I <br /> I <br /> i <br /> f <br /> E <br /> 'F <br /> i <br /> F <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions. <br /> Page 2 of 20 <br />