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Submission # 2002-07-0263 . <br /> Gas/BTEXFuel Oxygenates by 8260B RE <br /> Gettler Ryan STL San Francisco <br /> Attn Deanna Harding 1220 Quarry Lane <br /> 6747 Sierra Court Suite J Pleasanton,CA 94566 <br /> Dublin, CA 94568 Tel (925)484-1919 <br /> ry Phone (925) 551-7444 Fax (925) 551-7899 Fax (925)484-1096 <br /> www sti-inc oom <br /> Project 180238 80 Received 07/12/2002 17 05 www chromalab corn <br /> Tosco#4409 <br /> Site 1502 N EI Dorado St CA DHS ELAP#2496 <br /> Stockton, CA <br /> r 'Batch 0C"Report <br /> u -- - — . <br /> r� {�q/� <br /> Prep(s) �5030Br <br /> �- u � _ � �`_� � Test(s): 8260FAB <br /> box _ <br /> s <br /> i r <br /> Laboratory Control Spike' g Waters - <br /> 06'Batch# 2002107.124-02.27 <br /> LCS ° 2002/07/24-02 27-008 p Extracted. 07/24/2002 ` `,analyzed, 07124/2002 12 12 <br /> LCSD 2002/07/24-02 27-010_ �n ' 'Extracted,97/24/2002ti � Analyzed,Q71240�2x 1� 2X17 W <br /> �G v._ <br /> Compound Conc ug/L. Exp Conc Recovery RPD Ctrl Limits% Flags <br /> LCS LCSD LCS I LCSD % Rec RPD LCS LCSD <br /> Benzene 210 208 250 84 0 832 10 69-129 20 <br /> Toluene 226 221 25 0 904 884 2 2 70-130 20 <br /> f Methyl tert-butyl ether(MTBE) 25 3 236 250 101 2 944 7 0 65-165 20 <br /> Surrogetes(s) <br /> 1,2-Dichloroethane-d4 565 529 500 1130 1058 76-114 <br /> Toluene-d8 458 473 500 916 94 6 88-110 <br /> 07/26/2042 15 10 STL San Francisco is part of Severn Trent Laboratories, Inc Page 17 of 20 <br />