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STLSubmission: 2004-12-0056 <br /> Gas/BTEX Fuel Oxygenates by 8260B <br /> TRC Alton Geoscience-Irvine <br /> Attn-:Anju Farfan <br /> 21 Technology Drive <br /> Irvine, CA 92718 <br /> Phone: (949) 341-7440 Fax: (949)753-0111 <br /> Project: 41050001 FA20 Received: 11/30/2004 16:07 <br /> Conoco Phillips#11195 <br /> Site: 16500 S. Interstate 5 <br /> Batch QC.Report , <br /> Prep(s).- 50308 Test(s):8260FAB <br /> Laboratory Control Spike Water QC Batch#2004!12105=1A.64. <br /> LCS 2004112105-1 A.64-007 Extracted: 12/05/2004 Analyzed: 12/05/2004 07:07 <br /> LCSD <br /> Compound Conc. ug/L Exp.Conc. Recovery% RPD Ctrl-Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Methyl tert-butyl ether(MTBE) 24.6 25 98.4 65-165 20 ` <br /> Benzene 23.2 25 92.8 69-129 20 <br /> Toluene 23.7 25 94.8 70-130 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 464 500 92.8 73-130 <br /> Toluene-d8 454 500 90.8 81-114 <br /> Severn Trent Laboratories, Inc. 12/14/2004 13:37 <br /> STL San Francisco`1220 Quarry Lane,Pleasanton,CA 94566 <br /> ApM Severn Trent Plc Tel 925 484 1919 Fax 925 484 1096"www.sti-ino.com`CA DHS ELAP#2496 Page 30 of 50 <br />