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t1 <br /> 1551 Industrial San CarsCA 907aa <br /> (650) 232-9600 <br /> 1%„f Analytical FAX(650) 232-9612 <br /> 0 <br /> Gettler-Ryan/Geostrategies(l) Project Unocal(1) Sampled 11/23/99 <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 U-3 <br /> Laboratory Sample Number. L911275-04 <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 Purgeable Hydrocarbons(C6-C12).BTEX and MTBE by DHS LUFf <br /> Purgeable Hydrocarbons as Gasoline 9120009 1212199 12/3/99 2500 8960 ug/l 1 <br /> Benzene " 250 609 " <br /> Toluene It <br /> 250 606 " <br /> Ethylbenzene 25 0 566 " <br /> Xylenes(total) 250 744 " <br /> Methyl tert-butyl ether 250 ND " <br /> Surrogate a,a,a-Th luorotoluene 700-130 78 4 <br /> Volatile Organic Oxvaenated Compounds by EPA Method 8260A <br /> Ethanol 9120004 12/1/99 12/1/99 5000 ND ug/l <br /> Tert-butyl alcohol 1000 ND " <br /> Methyl tert-butyl ether 100 ND " <br /> DAropyl ether E 0 0 ND " <br /> Et -butyl ether 100 ND " <br /> T_ert-amyl methyl ether _ " f 0 0ND--- <br /> Surrogate <br /> D__Surrogate 12-Dichloroethane-d4 760-114 108 % <br /> i <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 5 of 28 <br />