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STLSubmission: 2004-12-0056 <br /> Gas/BTEX Fuel Oxygenates by 82608 <br /> TRC Alton 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: 11/30/2004 16:07 <br /> Conoco Phillips#11195 <br /> Site: 16500 S. Interstate 5 <br /> Batch QC Report <br /> Prep(s): 50308 Test(s): 82601 AB <br /> Matrix Spice(MSI.MSD) Water QC Batch#2004112112=1A.64 <br /> MS/MSD Lab ID: 2004-12-0336-001 <br /> MS: 2004112112-1.A.64-018 Extracted: 12/12/2004 . Analyzed: 121121200414::18 <br /> Dilution:. 1.00 <br /> MSD: 2004112112-1A.64-040 Extracted: 12112/2004 Analyzed: 12112120Q414:40 <br /> Dilution: 1.00 <br /> Compound Conc. ug!L Spk.Level Recovery% Limits% Flags <br /> MS MSD Sample ug/L MS I MSD RPD Rec. RPD MS MSD <br /> Benzene 19.6 21.9 ND 25 78.4 87.6 11.1 69-129 20 <br /> Toiuene 20.1 22.4 ND 25 80.4 89.6 10.8 70-130 20 <br /> Methyl tert-butyl ether 18.6 21.7 ND 25 74.4 86.8 15.4 65-165 20 <br /> Surrogate(s) <br /> 1,2-Dichloroethane-d4 428 444 500 85.6 88.8 73-130 <br /> Toluene-d8 490 487 500 98.0 97.4 1 81-114 <br /> Severn Trent Laboratories, Inc. <br /> 12114!200413:37 <br /> STL San Francisco`1220 Quarry Lane,Pleasanton,CA 94566 <br /> A ped 0 Severn Tm.1 Pk Tel 925 484 1919 Fax 925 484 1096'www.sil-inc.corn`CA DHS ELAP#2496 Page 49 of 50 <br />