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---- <br /> STL <br /> Submission: 2004-12-0056 <br /> Gas1BTEX 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): 5030B Test(s). 8260FAB <br /> Laboratory Control Spike Water QC Batch#2004112108.1T.64 <br /> LCS 2004112108-1T.64-051 Extracted: 12/08/2064 Analyzed: 12/08/2004 07:28 <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 Cert-butyl ether(MTBE) 25.7 25 102.8 65-165 20 <br /> Benzene 24.9 25 99.6 69.129 20 <br /> Toluene 25.6 25 102.4 70-130 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 450 500 90.0 73-130 <br /> Toluene-d8 459 500 91.8 81-114 <br /> i <br /> I <br /> i <br /> I <br /> i <br /> E <br /> } <br /> } <br /> s <br /> I <br /> _ l <br /> F` 4 <br /> Severn Trent Laboratories, Inc. 12/14/200413:37 <br /> STL San Francisco"1220 Quarry Lane,Pleasanton,CA 94566 <br /> A part of S—am T-1 Pk Tel 925 484 1919 Fax 925 484 1096`www.stf-inc.com'CA DHS FLAP#2496 Page 37 of 50 <br /> F <br />