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1551 Industrial Road <br /> San Carlos,CA 94070-4111 <br /> Sequoia F, {650z Z3? <br /> Analytical °' �� <br /> Gettler-Ryan/Geostrategies(l) Protect Tosco(5) Sampled. 6/26100 <br /> 6747 Sierra Court,Suite J __ _ Protect Number Tosco(Unocal)SS#6981 - - Reoe:ved 6127/00 <br /> Dublin,CA 94568 Project Manager Deanna H 7/12/00 <br /> Sample Description- - - - - - - - MW4 - -- - --- - - - - - - - -- -- - — <br /> Laboratory Sample Number: L006236-04 <br /> Batch Date Date Specific Method/ Reporting <br /> Anal Number Analyzed Surrogate Linuts Lima Result Units Notes* <br /> Sequoia Analytical-San Cgrlos <br /> Total Pureeable Hydrocarbons C6-C12 BTEX and MTBE by DHS LUFT <br /> Purgeable Hydrocarbons as Gasoline 0070020 716/00 717/00 500 ND ug/1 <br /> Benzene ^ " 0 500 ND ^ <br /> Toluene " 0 500 1.80 " <br /> Ethylbenzene " 0 500 ND " <br /> Xylenes(total) " 0 500 1.54 " <br /> Methyl tat-butyl ether 500 ND " <br /> Surrogate a,a,a-Tnfluorotoluene N700-130 111 % <br /> Volatile Orsanic Oxygenated Compounds by EPA Method 82b0A <br /> Tert-butyl alcohol 0070023 7/7/00 7/7/00 100 ND ug/l <br /> Methyl tort-butyl ether 200 ND " <br /> Eh-isopropyl ether 200 ND " <br /> FAhyi tert-butyl ether " " 200 ND <br /> Tert-amyl methyl ether " " " 200 ND <br /> Surrogate 1,2-Dwhloroethane-d4 760-114 105 % <br /> I <br /> Sequoia Analytical-San Carlos *Refer to end of reportjbr text of notes and definitions <br /> Page 5 of 30 <br />