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Submission#: 2002-09-0003 <br /> Fuel Oxygenates by 8260E <br /> ATC Associates Inc. STL San Francisco <br /> 1220 Qu <br /> Attn.: Jim Lehrman <br /> 6602 Owens Drive Suite 100 Pleasantoonn,,CCA A 9 9456& <br /> Pleasanton, CA 94588 TeL(925)484-1919 <br /> ' Phone: (925)460-5300 Fax: (925)463-2559 Fax:(925)4841096 <br /> www.st14nc.com <br /> Project: 75.62503.3203 Received: 08/301200219:15 www.chromalab.com <br /> Quik Stop#132 <br /> CA DHS FLAP*2496 <br /> Batch QC Report <br /> ' Prep(s): 5030B Test(s): 8260FAB <br /> Laboratory Control Spike Water QC Batch#2002109/11-01.27 <br /> ' LCS 2002109111-01.27-003 Extracted: 09/11/2002 Analyzed: 09/111200210:48 <br /> LCSD 2002109111-01.27-004 Extracted: 09/11/2002 Analyzed: 09/1112002 11:17 <br /> Compound Conc. ug/L Exp.Conc. Recovery RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. I RPD LCS LCSD <br /> Benzene 19.8 20.2 25.0 79.2 80.8 2.0 69-129 20 <br /> ' Toluene 20.8 22.0 25.0 83.2 88.0 5.6 70-130 20 <br /> Methyl tent-butyl ether(MTBE) 26.6 29.3 25.0 106.4 117.2 9.7 65-165 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 526 537 500 105.2 107.4 76-114 0 <br /> Toluene-d8 1472 J 483 1500 194.4 196.6 1 188-110 0 <br /> 09/11/2002 13:51 STL San Francisco is part of Severn Trent Laboratories,Inc. Page 16 of 16 <br />