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' y+' 14 <br /> 1 1551 industi-al,Road' ` <br /> Sequoia San Carlos CA 94070-4111 <br /> y ' (650) 232-9600 <br /> Analytical y s FAX(650) 232-9612 <br /> i <br /> Gettler-Ryan/Geostrategies(1) " Project Unocal(]) Sampled 11/23/99 Y <br /> 6747 Sierra Court,Suite D - Project Number Unocal SS#0187/Job#280045 Received 11/24/99 ' <br /> Dublin,CA 94568 Project Manager Deanna Harding Reported 12/10/99 <br /> Sample Description U4 <br /> Laboratory Sample Number - y i-- - - L911275-05 <br /> , 3 4 <br /> Batch Date Date Specific Method/ Reporting <br /> rAnalyte__ Number Prepared Analyzed Surrogate Limits Limit Result Units Notes* <br /> ,� <br /> Sequoia Analytical-San Carlos <br /> Total Pureeable Hydrocarbons(C6-C12).BTEX and MTBE by DHS LUFT <br /> Purgeable Hydrocarbons as Gasoline 9120023 12/6/99 12/6/99 500 ND ug/1 <br /> Benzene - or <br /> " 0 500 0 734 " <br /> Toluene " " 0 500 623 " <br /> Ethylbenzene 0 500 0 633 " <br /> Xylenes(total) 0 500 323 r <br /> Methyl tert-butyl ether 500 a ND " <br /> Surrogate a a a-rrifluorotoluene + 700-130 778 % y <br /> W <br /> Volatile Organic Oxygenated Compounds by EPA Method 8260A a <br /> Ethanol 9120029` 1217/99 12/7/99 1000 ND' ug/l <br /> Tert-butyl alcohol u 200 ND " <br /> Methyl tert-butyl ether2 00 394 2 00s N D L <br /> Di-isopropyl ether , <br /> Ethyl ten-butyl ether " _ - 2 00 P ND - <br /> Tert-amyl methyl ether 200 ND " <br /> Seerrogate 12-Dichloroethane-d4 76 0-114 91 6 <br /> , 4 <br /> I <br /> , <br /> 1 <br /> Sequoia Analytical-San Carlos "Refer to end of report far text of notes and definitions <br /> Page 6 of 28 <br />