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�> <br /> STL Submission #' 2003-02-0471 <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 180137 80 Received 02/24/2003 14 15 <br /> Tosco#5886 <br /> Site 2701 W March Lane <br /> Stockton, CA <br /> Batch QC Report <br /> Prep(s) 5030B Test(s) 8260FAB <br /> Laboratory Control Spike Water QC Batch#2003103104-01,62 <br /> LCS 2003103104-01.62-015 Extracted 03/04/2003 Analyzed 03104!2003 14 15 <br /> LCSD 2003103104-01 62-037 Extracted 03/04/2003 Analyzed 03/04/2003 14 37 <br /> Compound Conc uglL Exp Conc Recovery RPD Ctrl Limits% Flags <br /> LCS LCSD LCS LCSD % I Rec RPD LCS LCSD <br /> Benzene 21 4 212 250 856 848 09 69-129 20 <br /> Toluene 222 224 250 888 896 09 70-130 20 <br /> Methyl Cert-butyl ether(MTBE) 191 193 250 764 772 1 0 65-165 20 <br /> Surrogates(s) <br /> 1,2-Dichloroelhane-d4 521 528 500 1042 1056 76-114 <br /> Toluene-d8 489 469 500 978 938 88-110 <br /> Severn Trent Laboratories, Inc 03/07/2003 15 06 <br /> STL Sara Francisco'1220 Ouany Lane, Pleasanton,CA 94566 <br /> A pan of nevem Treel Pk TO 925 484 1919 Fax 925 484 1A96-www sll-inc corn'CA DHS ELAN 2496 Page 26 of 28 <br />