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Submission: 2005-07-0597 <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: 41050001 FA20 Received: 07/21/2005 14:20 <br /> Conoco Phillips #01205 <br /> Site: 16470 Cambridge Dr. Lathrop <br /> Batch:QC Report <br /> Preps) 50308 Test(s):82605 <br /> Ma#nx Spike (,MS 1 MSD); Water"r QC Batch V#.2005L08/02-1A.65 ' <br /> INs <br /> . a <br /> T: r Lab IQ: 2005 07 0772 004 <br /> MS 2005/08/02 1 A.65-032! Extracted 08/02/2005 Analyzed 08/02/2005 11 32-. <br /> Dilution <br /> 1.00 <br /> '"MSIO: 2005/08/02 1A 65.058 Extracted:08/02/2005 Analyzed 0810212005.1,1:58 <br /> Dilution ""1"00. <br /> Compound Conc. uglL IspkIeve Recovery% Limits% Flags <br /> MS MSD Sample ug1L MS MSD RPD Rec. RPD MS MSR <br /> Methyl tert-butyl ether 54.7 83.0 35.9 25 75.2 188.4 85.9 65-165 20 M4,R1 <br /> Benzene 27.6 28.1 ND 25 110.4 112.4 1.8 69-129 20 <br /> Toluene 28.9 30.0 ND 25 115.6 120.0 3.7 70-130 20 <br /> Surrogate(s) <br /> 1,2-Dichloreethane-d4 355 558 500 71.0 111.6 73-130 S8 <br /> Toluene-d8 443 496 500 88.6 99.2 81-114 <br /> Severn Trent Laboratories, Inc. 08/03/2005 14:42 <br /> STL San Francisco`1220 Quarry Lane, Pleasanton,CA 94566 <br /> A part of 5awm Trent Plc Tel 925 484 1919 Fax 925 484 1096`www.stl-inc.com"CA DHS FLAP#2496 Page 32 of 33 <br />