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STLSubmission#: 2003-05-0394 <br /> Gas/BTEX Fuel Oxygenates by 8260B <br /> Gettler Ryan <br /> AM.: 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:05/14/2003 16:56 <br /> Tosco#11195 <br /> Site: 16500 S. interstate 5, Lathrop <br /> Batch AC Report <br /> Preps] SOOB '. Testr$) 8260FAB <br /> : <br /> Laboratory Control Sptke Water QC Batch,#2003105123-1e 65; <br /> LCS :' 20031452;231e.65 002 Extracted'05723/2003 Analyzers 05/23/2003 08 54 <br /> LCSD' 2003105123 1e.65 t)Oi Extracted 05]'2312 U3 Analyz cl. 051 312403 09 15 <br /> Compound Conc. ug1L Exp.Conc. Recovery RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Benzene 27.4 26.7 25 109.6 106.8 2.6 69-129 20 <br /> Toluene 27.0 25.4 25 108.0 101.6 6.1 70-130 20 <br /> Methyl tert-butyl ether(MTBE) 37.1 35.0 25 148.4 140.0 5.8 65-165 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethene-d4 506 495 500 101.2 99.0 76-114 <br /> Toluene-d8 494 509 500 98.8 101.8 1 1 88-110 <br /> Severn Trent Laboratories, Inc. 05/29/2003 14:50 <br /> STL San Francisco*1220 Quarry Lane,Pleasanton,CA 94566 <br /> Apart of Swem Trani Pit Tel 925 484 1919 Fax 925 484 1096*www.stl-inc.com*CA DHS ELAP#2496 Page 29 of 36 <br />