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OWN STL <br /> Submission: 2005-02-0540 <br /> --- Gas/BTEX Fuel Oxygenates by 8260B <br /> TRC Alton Geoscience-Irvine <br /> Attn.: Anju Fartan <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): 5030B Test(s): 8260B j <br /> i <br /> Laboratory Control Spike Water QC Batch#2005/03101 A B.68 <br /> LCS 2005103/011-1113,68-028 Extracted. 03/01/2005 Analyzed 03101!2005 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 tert-butyl ether(MTBE) 22.0 25 88.0 65-165 20 <br /> Benzene 24.0 25 96.0 69-129 20 <br /> Toluene 24.1 25 96.4 70-130 20 <br /> j <br /> Surrogates(s) i <br /> 1,2-Dichloroethane-i4 453 500 90.6 73-130 <br /> Toluene-d8 507 500 101.4 81-114 <br /> is <br /> f <br /> k <br /> f <br /> i <br /> f <br /> F <br /> if <br /> Severn Trent Laboratories, Inc. <br /> 03/02/2005 17:58 <br /> STL San Francisco`1220 Quarry Lane,Pleasanton,CA 94566 <br /> A Part of Severn rrem M Tel 925 484 1919 Fax 925 484 1096`www.stl-inc.com`CA DHS ELAP#2496 Page 30 of 36 <br />