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Sequoia °i r r 1 IY <br /> i t551 Industnal Road <br /> San Carlos, CA 94070-4111 <br /> e - (650) 232-9600 <br /> Iwo Analytical ' FAX(650) 232-9612 <br /> Gettler-Ryan/Geostrategies(I) , Project Unocal(l)' „ Sampled 11/23/99 <br /> 6747 Sierra Court,Suite D Project Number Unocal SS#O187/job#280045 Received 11/24/99 <br /> Dublin,CA 94568 ,Project Manager 'Deanna Harding Reported 12/10/99 <br /> Sample Description• S+ NP-1-22 <br /> Labbratory Sample Number. L911275-11 <br /> Batch Date Date, Specific Method/ Reporting <br /> Analyte Number Pr `'ared Analyzed Surrogate Limits Limit Result Units Notes* <br /> Senuoia Analytical-San Carlos <br /> Total Purgeable Hydrocarbons LCO-C12).BTEX and MTBE by DHS LUFT <br /> Purgeable Hydrocarbons as Gasoline 9120016 12/3/99 12/3/99 10000 16900 ug/l i <br /> Benzene 100 845 " <br /> Toluene " ' 100 205 " <br /> Ethylbenzene 100 1560 " <br /> Xylenes(total) " 100 1980 " <br /> Methyl tert-butyl ether " 1000 ND " <br /> Surrogate a,a,a-Tnlluorotoluene i', '" a ,'' 700-130 + 912, % " <br /> Volatile Oreanic OxvyenatedCompounds_by EPA Method 8260A <br /> Ethanol 9120004 12/1/99 # r 12/1199 _ 20000 ND ^Ug/1 <br /> Tert-butyl alcohol 1 lE 4000 ND " <br /> Methyl tert-butyl ether _ ; , ,'; fz r 7 400 _ ND <br /> Di-isopropyl ether w 400 ' ND �•, <br /> w Ethyl tent-butyl ether - 40'0 ND " <br /> T_e_rt-amyl methyl ether _ 400 <br /> Surrogate 1 2-Dichloroethane-d4 760 114 Y 111 % <br /> 1 <br /> ' <br /> j <br /> r e t <br /> 1 ' <br /> Sequoia Analytical- San Carlos *Refer to end of report for text of notes and definitions <br /> r <br /> Page 12 of 28 <br />