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r <br /> Submission 11: 2002-09-0003 <br /> Fuel Oxygenates by 8260B <br /> ATC Associates Inc. STL San Francisco <br /> ' lea Quarry Lane <br /> Attn.: Jim Lehrman P <br /> 6602 Owens Drive Suite 100 Pleasanton,CA 9456& <br /> Pleasanton, CA 94588 Tel:(925)484-1919 <br /> Phone: (925) 460-5300 Fax: (925) 463-2559 Fax:(925)484-1096 <br /> www.stl-inc.com <br /> Project: 75.62503.3203 Received: 08130/200219:15 www.rhromalab.com <br /> Quik Stop*132 <br /> CA DHS FLAP*2496 <br /> ' Batch QC Report -- <br /> Prep(s): 50306 Test(s): 8260FAB <br /> Laboratory Control Spike Water QC Batch#2002109106-02.27 <br /> �. LCS 2002109106-0227-014 Extracted:09/06/2002 Analyzed: 09106/200215:33 <br /> LCSD 2002109106-02.27-015 Extracted:09/06/2002 Analyzed: 09/06/200216:03 <br /> ' Compound Conc. ug/L Exp.Conc. Recovery RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. I RPD LCS LCSD <br /> Benzene 18.6 18.6 25.0 74.4 74.4 0.0 69-129 20 <br /> ' Toluene 23.0 23.3 25.0 92.0 93.2 1.3 70-130 20 <br /> Methyl tert-butyl ether(MTBE) 21A 20.3 25.0 85.6 81.2 5.3 65-165 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 550 530 500 110.0 106.0 76-114 <br /> "toluene-d8 477 1490 1500 195.4 198.0 88-110 <br /> r <br /> 1 <br /> 1 <br /> r <br /> r <br /> 1 <br /> r <br /> 1 <br /> 09/11/2002 13:51 STL San Francisco is part of Severn Trent Laboratories. Inc. Page 14 of 16 <br /> 1 <br />