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STLSubmission: 2005-06-0793 <br /> Fuel Oxygenates by 8260B <br /> frsl San Joaquin Company, Inc. <br /> "":j <br /> Attn.: Dai Watkins <br /> =.. <br /> ;;--1 1120 Hollywood Ave, Suite 3 <br /> Oakland, CA 94602-1459 <br /> Phone: (510)336-1772 Fax: (510)336-9119 <br /> Project: 9902.013 Received: 06/30/2005 09:25 <br /> C. Navarra <br /> Site: 7500W. 11th St., Tracy. <br /> --�i <br /> i <br /> Batch QC aeport <br /> = Prep(s) 50308 Test(s) 82600 <br /> Matrix Spike(:MS./MSD ) Water <br /> QC Batoh#2005107/05-02.64" <br /> MS/MSD Lab ID: 2005-07=0021.-001;' <br /> MS: . .:.2005107105-02;64-015 Extracted:07/05/2005 Analyzed: 07105!2005 21.15 <br /> Dilution: <br /> i;. MSD. 2005107105-02:64-038 Extracted:07/05/2005 Analyzed .:014512(105.21.38 <br /> Dilution 1.00' <br /> Compound Conc. uglL Spk.Leve Recovery% Limits% Flags <br /> •- <br /> MS MSD Sample ug1L MS MSD RPD Rec. RPD MS MSD <br /> Methyl tent-butyl ether 26.0 22.8 ND 25.0 104.0 91.2 13.1 65-165 20 <br /> # Benzene 28.0 24.8 ND 25.0 112.0 99.2 12.1 69-129 20 <br /> Toluene 26.8 25.1 ND 25.0 107.2 100.4 6.6 70-130 20 <br /> Surrogate(s) <br /> 1,2-Dichloroethane-d4 436 421 500 87.2 84.2 73-130 <br /> Toluene-d8 417 427 500 83.4 85.4 81-114 <br /> e .3 <br /> 1 <br /> 0711 512005 11:44 <br /> Severn Trent Laboratories, Inc. <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 <br /> A part of Sevem T-1 Pic Tel 925 484 1919 Fax 925 484 1 096"www.stl-ine.com.CA DHS ELAP#2496 Page 31 of 36 <br />