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STLSubmission #E: 2003-02-0312 <br /> Gas/BTEX Fuel Oxygenates by 82608 <br /> Gettler Ryan <br /> Attn.. Deanna !-larding <br /> 6747 Sierra Court Suite J <br /> Dublin, CA 94568 <br /> Phone: (925) 551-7444 Fax: (925) 551-7899 <br /> Project: 180175.80 Received: 02!1812003 08:35 <br /> Tosco#11195 <br /> Site: 16500 South Interstate 5, <br /> Lathrop, CA <br /> Batch QC:Report <br /> reps) 50306 <br /> g. <br /> Lab oratontroS.IAke <br /> Water - QC Batch#2003102125-01 <br /> ory� f 27 <br /> - <br /> :..L'CS - 2003/02125 01 27-004 Extracted 02125/2003° _ Analyzed, 02125120D3 10 05 <br /> zed ,02122003.10 32 <br /> LCSD 20031021251 27 005 " T, Extracted 0212512603,. AnalY.•_ <br /> Compound <br /> Conc. uglL Exp.Conc. Recovery RPDJ Ctrl.Lirnits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Methyl tert-butyl ether(MTBE) 26.4 25.7 25.0 105.6 102.8 2.7 65-165 20 <br /> Benzene 23.5 23.0 25.0 94.0 92.0 2.2 69-129 20 <br /> Toluene 23.9 23.4 25.0 95.6 93.6 2.1 70-130 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 511 504 500 102.2 100:8 76-114 <br /> Toluene-d8 468 474 500 93.6 94.8 88-110 <br /> 03/06/2003 15:54 <br /> Severn Trent Laboratories,-Inc. <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 Page 28 of 30 <br /> A pert n,Sewm Tread Pic Tel 925 484 1919 Fax 925 464 1096`www.sti-inc.com'CA DHS ELAN 2496 - <br />