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STLSubmission: 2004-10-0468 <br /> GasIBTEX Fuel Oxygenates by 8260B <br /> TRC Alton Geoscience- Irvine <br /> Attn.: Anju Farfan <br /> 21 Technology Drive <br /> Irvine;CA-927--18 <br /> Phone: (949) 341-7440 Fax: (949) 753-0111 <br /> Project: 41050001 FA20 Received: 10/14/2004 11:25 <br /> Conoco Phillips#01205 <br /> Site: 16470 Cambridge Street, Lathrop <br /> Batch QC Report <br /> Prep(s): 50306 Test(s): 8260B <br /> Matrix Spike { MS!MSD ) Water QC Batch•#2004/10/24-1 B;66 <br /> MW-8 » MS Lab ID: . 2004-10-0468-.001: <br /> MS: 2004/10124-18.66-039 Extracted: 10/24/2004 Analyzed- .10/2412004 11:39 <br /> MSD: 2004/10124-1 B.66-017 Extracted:-10/24/2004 Analyzed:- 10/24/2004 12:00 <br /> Dilufion: 1.00 <br /> Compound Conc. u !L Sek.Leve R covery% Limits% Fla s <br /> MS MSO Sample u IL MS MSD RPD Rec. RPD M5 MSD <br /> Benzene 27.0 28.2 ND 25 108.0 112.8 4.3 69-129 20 <br /> `Toluene , '23:7—-24.-4—'ND _25— 94.8 97.6 _2_.9_ '7C-13 20 <br /> Methyl tent-butyl ether 30.2 32.3 ND 25 1 120.8 129.2 6.7 65-165 20 <br /> —Surrogate(s) -- <br /> 1,2-Dichloroethane-d4 491 484 500 98.2 96.8 72-128 <br /> Tolue6e465 477 500 93.0 95.4 80113 <br /> Severn Trent Laboratories, Inc. 10/28/200414:31 <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 <br /> A part of Severn Trent Plc Tel 925 484 1919 Fax 925 484 1096'www.sti-inc.com"CA DHS FLAP#2496 Page 22 of 24 <br />