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--------- <br /> STL <br /> Submission: 2005-10-0515 <br /> Gas/BTEX Flue! Oxygenates by 8260B <br /> TRC Afton 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: 10/25/2005 16.05 <br /> Conoco Phillips#11195 <br /> _ Site: 76500 S. Interstate 5, Lathrop, CA <br /> Batch QC Report <br /> s <br /> Prep( s); 50308 <br /> Test O:8260B <br /> f_aboratory Control Spike Water QC Batch#2005!10!31-1,4 69 <br /> LCS 2005/10/31 1A:69-010 Extracted 10M12005. Analyzed:10/31/2005 08:19. <br /> LCSD 2005/10131-1A Analyzed: 10/31/2005 09:01 <br /> 69-007 Extracted. 1013112005 _ -- <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) 24.9 26.0 25 99.6 104.0 4.3 65-165 20 <br /> Benzene 23.2 23.3 25 92.8 932 0.4 69-129 20 <br /> Toluene 23.9 23.4 25 95.6 93.6 2.1 70-130 20 =f=3 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 425 440 500 85.0 88.0 73-130 <br /> Toluene-d8 465 468 500 93.0 93.6 81-114 <br /> u <br /> t <br /> 3 <br /> F <br /> r' <br /> F <br /> f <br /> r�r <br /> r. <br /> Severn Trent Laboratories, Inc. 10/31/2005 15:26 <br /> STL San Francisco*1220 Quarry Lane,Pleasanton,CA 94566 <br /> APaaorse -TmntM Tel 925 484 1919 Fax 925 484 1096`www.stl-ine.com*CA OHS FLAP#2496 Page 32 or 37 E. <br /> r <br />