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1551 Industrial Road <br /> San Carlos,CA 94070-4111 <br /> 4 Sequoia FAX t650;Z32�1° <br /> 1„. Analytical www sequolalabs cmTV <br /> 0 <br /> Gettler-Ryan/Ge09fttegieS(1) Project: Tosco(5) Sampled. 6126100 <br /> 6747 Sierra Court,Saute J — Protect Number=Tosco(Unocal)SS#6981 _ ___ — _ Received.-=6/27100 _ <br /> Dublin,CA 94568 project manager Deanna Hardmg Rqmrte& 7/12/00 <br /> Sample Description: - -- - - -VW-7 --- - -- - ---- --- - - - --- - - - - - <br /> Laboratory Sample Number: L006236-18 <br /> Batch Date Date Specific Method/ Reporting <br /> Anal Number Analyzed Surra ate Lumts Lunt Result Units Notes* <br /> Sequoia Analytical-San Carl21 <br /> Total rurgeable Hydrocarbons C6-02 BTEX and MTBE by DHS LEFT <br /> Purgeabie Hydrocarbons as Gasoline 0070025 7PN00 717/00 5000 28700 ugtl 1 <br /> Benzene Soo 1560 " <br /> Toluene 500 3800 " <br /> Ethylbenme n rt n 500 ND " <br /> Xylenes(total) " " " 500 8310 " <br /> Methyl tent butyl ether " " 500 ND " <br /> Surrogate a,a,a-Tnfluorotoluene 700-130 106 % <br /> Volatile Oreanle Compounds by EPA Method 8260A <br /> 1,2-13ibromoethane 0070031 7/10/00 7/10100 400 ND u91l <br /> 1,2-Dichloroethane " 400 ND " <br /> Eh-isopropyl ether " " " 400 ND n <br /> Ethyl tort-butyl ether " " " 400 ND <br /> Methyl tert-butyl ether " " " 400 414 " <br /> Tert-amyl methyl ether " 400 ND " <br /> Tert-butyialoohol 2000 ND " <br /> Surrogate 1,24hchloroethane-d4 760-114 106 % <br /> Surrogate Toluene-d8 " a 880-110 976 <br /> Sequoia Analytical-San Carlos *Refer to end of reportfor text of notes and definidons <br /> Page 19 of 30 <br />