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STLSubmission #: 2003-05-0394 <br /> Gas/BTEX Fuel Oxygenates by 8260B <br /> Gettler Ryan <br /> Attn.: Deanna Harding <br /> 6747 Sierra Court Suite J <br /> Dublin, CA 94568 <br /> Phone: (925) 551-7444 Fax: (925)551-7899 <br /> Project: 180175.80 Received: 05114/2003 16:56 <br /> Tosco#11195 <br /> Site: 16500 S. Interstate 5, Lathrop <br /> 01 <br /> Bafch QC Report . <br /> Prep(s), Tests) $260FAB' <br /> Matrix 5ptke{ M$1.M5© Water QC'Batctt#20p3705123:-2b 65:: <br /> LI= 5 »NIS Lab It] ` 240 45 0358. 005:;: <br /> <I MS. 2003105123.-2b 65 O:fi2 Extracletl 05/2412003 'Analyzed 05/2412003 01,20 <br /> Dilutlon. Mr <br /> 1..�0. <br /> 2003105123�2b 65-6fi3 .. Extracted: 05/241203 ;: Analyzed 0512412003 01 42:.' <br /> ution:Dil ' 1 00m.is <br /> Compound Conc. u !L k.Leve Recovery Limits% Flags <br /> MS MSD Sample ug/L MS MSD I RPD Rec. RPD MS MSD <br /> Benzene 27.4 27.4 ND 25 109.6 109.6 0.0 69-129 20 <br /> Toluene 26.0 26.1 ND 25 104.0 104.4 0.4 70-130 20 <br /> Methyl tert-butyl ether 33.5 37.4 ND 25 134.0 149.6 11.0 65-165 20 <br /> Surrogate(s) <br /> 1,2-Dichloroethane-d4 472 509 500 94.4 101.7 76-114 <br /> Toluene-d8 507 510 500 101.4 102.1 1 88-110 <br /> Severn Trent Laboratories, Inc. 0512912003 14:50 <br /> STL San Francisca'1220 Quarry Lane,Pleasanton,CA 94566 <br /> Apart of Sevem Trent Plc Tel 925 484 1919 Fax 925 464 1096'www.sti-inc.com"CA DHS ELAN 2496 Page 35 of 36 <br />