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m STL Submission: 2004-07-0631 <br /> IAI <br /> GasIBTEX Fuel Oxygenates by 8260B <br /> I <br /> TRC Alton Geoscience- Irvine <br /> Attn.: Anju Farfan <br /> 21 Technology Drive <br /> Irvine, CA 92718 <br /> i <br /> Phone: (949)341-7440 Fax: (949) 753-0111 <br /> Project: 410500011FA20 Received: 07/20/2004 17:03 <br /> Conoco Phillips#01205 <br /> Site: 16470 Cambridge St. Lathrop <br /> Batch QC Report <br /> Pre p(s): 50308 Test(s):.8260FAB <br /> Laboratory Control Spike Water. X,QC Batch#2004108/02 1A.64 <br /> LCS 2004/08/02 1A.64=055 Extracted: 08/02/2004 Analyzed:08/02/2004 07:55' <br /> LCSD 2004108102-1A.64-017 y Extracted:0810212004 A,alyzed:0810212004'08:17 <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) 24.3 26.8 25 97.2 107.2 9.8 65-165 20 <br /> Benzene 23.2 23.4 25 92.8 93.6 0.9 69-129 20 <br /> Toluene 25.2 26.0 25 100.8 104.0 3.1 70-130 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 499 505 500 99.8 101.0 72-128 <br /> Toluene-d8 510 519 500 102.0 103.8 80-113 <br /> it <br /> Severn Trent Laboratories, Inc. 0810212004 16:00 <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 <br /> Apnnr5—Trent?lo Tel 925 484 1919 Fax 925 484 1096'www.sti-inc.com'CA DHS ELAP#2496 Page 21 of 23 <br /> I <br /> f <br />