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-.,- TL Submission#: 2004-03-0004 <br /> Gas/BTEX Fuel Oxygenates by 8260B <br /> TRC Alton Geoscience <br /> Attn.:Anju Farlan <br /> 21 Technology Drive <br /> Irvine, CA 92718 <br /> Phone: (949)341-7440 Fax: (949)753-0111 <br /> Project: 41050001 FA20 Received: 02/27/2004 18.53 <br /> Conoco Phillips#11195 <br /> Site: 16500 South Interstate 5, Lathrop <br /> Batch QC=Rep+�rt: <br /> Preps) 5030 Tast(s) 8260FAB <br /> ;Laboratory Control Spike Water QC Batch#2004/03/09 13 0� <br /> .. . <br /> ..:.ECS 2404/03/09 16 66=00$ Extracted 4310972004 analyzed 03/09120D4.1 U 03 <br /> LCSD :,; a041p. f.09=.1Bfi6028.. . ;:extracted 03109!2004:::,: Analysed D31bOf2004.iQ28_.. <br /> Compound Conc: ug/L Exp.Conc. Recovery% RPD C1rl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Methyl tert-butyl ether(MTBE) 25.9 26.1 25 103.6 104.4 1 0.8 65-165 20 <br /> =: Benzene 27.5 27.5 25 110.0 110.0 0.0 69-129 20 <br /> Toluene 28.2 25.7 25 112.8 102.8 9.3 70-130 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-l4 522 510 500 104.4 102,0 76-114 <br /> Toluene-d8 1525 508 1500 1105.0 1 101.6 88-110 <br /> r' <br /> Severn Trent Laboratories, Inc. 031111200416:06 <br /> STL San Francisco`1220 Quarry Lane,Pleasanton,CA 94566 <br /> . os.vem rwMraTel 925 4841919 Fax 925 4841096`www.sUAnc.com'CA DHS ELAP#2496 Page 26 of 29 <br />