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m0m WIN' <br /> S T L <br /> Submission: 2005-02-0540 <br /> Gas/BTEX Fuel Oxygenates by 8260B f" <br /> TRC Alton Geoscience- Irvine <br /> Attn.: Anju Far-fan <br /> 21 Technology Drive <br /> Irvine, CA 92718 <br /> Phone: (949) 341-7440 Fax: (949) 753-0111 <br /> Project: 41050001 FA20 Received: 02/16/2005 12:18 <br /> Conoco Phillips# 11195 <br /> Site: 16500 S. Interstate 5 Lathrop <br /> Batch QC Report . <br /> Prep(s): 50308 . Test(s):82608 <br /> Laboratory Control Spike Water QC Batch#2005!02125-3A`,62 <br /> LCS 20.05102/`25-3.A.62-008 Extracted:.02/25/2005 Analyzed: 0212512005.18:08 <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 tent-butyl ether(MTBE) 23.0 25 92.0 65-165 20 <br /> Benzene 24.7 25 98.8 69-129 20 <br /> Toluene 26.2 25 104.8 70-130 20 '_=f:.'%:% <br /> .r rs.i <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 489 500 97.8 73-130 <br /> TolueneA8 538 500 107.6 1 81-114 <br /> i <br /> i <br /> Severn Trent Laboratories, Inc. 03/02/2005 17:58 <br /> STL San Francisco*1220 Quarry Lane,Pleasanton,CA 94566 <br /> A part dS.Vv mTr..t ft Tel 925 484 1919 Fax 925 484 1096*www.stl-inc.com*CA DHS FLAP#2496 Page 27 of 36 <br />