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------------------------- <br /> ---- ---- - - = <br /> STL <br /> Submission: 2005-10-0515 <br /> Gas/BTEX Fuel Oxygenates by 8260B <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: 410500011FA20 Received: 10/25/2005 16:05 <br /> Conoco Phillips#11195 <br /> I <br /> Site: 16500 S. Interstate 5, Lathrop, CA <br /> E <br /> Batch QC Report <br /> Prep(s).:. 50308 Test(s):8260B <br /> Matrix Spike(MS f MSD) Water "' ::QC Batch#200511 Q131-1A.69`: <br /> - <br /> MW-3 > MS.. Lab ID-. 2005=10-0515;-014 <br /> MS: 2005110137-1A.69-019 E=xtracted; 10/3112005 Analyzed:- 10!3112005..10:19 <br /> Dilution: 1.00'.. <br /> MSD: 2005110131-1A 69-040 Extracted 10/3112005 Analyzed; 10/31/2005 10.40 <br /> Dilution: <br /> Compound Cone. ug lL 5 k.Love Recovery% Limits% Flags <br /> MS MSD sample ug1L MS MSD RPD Reg, RPD MS MSD <br /> Methyl tert-butyl ether 52.5 49.7 22.5 25 120.0 108.8 9.8 65-165 20 I <br /> Benzene 24.5 21.8 ND 25 98.0 87.2 11.7 69-129 20 <br /> Toluene 25-3 21.8 ND 25 101.2 87.2 14.9 70-130 20 <br /> Surregate(s) <br /> 1,2-Dichloroothane-d4 459 450 500 91.8 90.0 73-130 <br /> Toluene-d8 469 472 500 93.8 94.4 B1-114 <br /> E <br /> k <br /> 's• <br /> i <br /> Severn Trent Laboratories, Inc. 10/31/2005 15:29 f <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 I' <br /> A pd.[S.—Trent Plc Tel 925 484 1919 Fax.925 484 1096'www.stl-inc.com*CA OHS ELAP#2496 Page 36 of 37 L <br /> h <br /> ypL <br /> M <br />