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Sequoia los, A 9,40rl0f Road <br /> San Carlos,CA 94070-.4111 <br /> 4(D- Analytical (650)232-9600 <br /> alytical FAX(650) 232-9612 <br /> Gettler-Ryan/Geostrategies(1) Project: Tosco(2) Sampled: 2122100 <br /> 6747 Sierra Court,Suite D Project Number: UNOCAL SS#11195 Received: 2122100 <br /> Dublin,CA 94568 Project Manager. Deanna Harding Re <br /> ported. 317100 <br /> Sample Description: MW-6 <br /> Laboratory Sample Number: L002194-07 <br /> Batch Date Date Specific Method/ Reporting <br /> Analyte Number Prepared Analyzed Surrogate Limits Limit Result Units Notes* <br /> Sequoia Analytical-SanCarlos <br /> Total Pur eable Hydrocarbons C6-C12 BTEX and MTBE by DHS LUPI <br /> Purgeable Hydrocarbons as Gasoline 0030021 313100 313100 50.0 ND ug/l <br /> Benzene " „ " 0.500 ND " <br /> Toluene " 0.500 ND " <br /> E.thylbenzene 0.500 ND " <br /> Xylenes(total) " " 0.500 , ND " <br /> Methyl tert-butyl ether IF <br /> 5.00 14.8 " <br /> Surrogate: a,a,a-Tri)'luorotoluene toit70.0-130 109 % <br /> Volatile Organic Oxygenated Com ounds by EPA Method 826DA <br /> Ethanol 0030008 3/2100 312100 1000 ND ug/l <br /> Tert-butyl alcohol 11 " 11 100 ND It <br /> Methyl tert-butyl ether If <br /> " IF 2.00 16.8 It <br /> Di-isopropyl ether It if2.00 ND <br /> Ethyl tert-butyl ether if 2.00 ND <br /> Tert-amyl methyl ether 2.00 ND " <br /> Surrogate: 1,2-Dichloroethane-d4 IF <br /> if 76.0-114 98.0 <br /> i <br /> i <br /> i <br /> I <br /> I <br /> I <br /> I <br /> I <br /> i <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions. i <br /> Page B of 20 <br /> f <br />