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t <br /> .r <br /> Submission: 2005-01-0289 <br /> Gas/BTEX Fuel Oxygenates by 82608 <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: 41u5uuu-it-AZU Received: 011-i,ii2005 i7A7 <br /> Conoco Phillips#01205 <br /> Site: 16470 Cambridge St. Lathrop <br /> Batch QC Report <br /> Prep(s): 5030E Test(s): 82608 <br /> Matrix Spike ( MS 1 MSD ) Water QC Batch#2005101118-2A.65 <br /> MW-10 » MS Lab ID: 2005-01-0289 -002 <br /> MS: 2005101118-2A.65-034 Extracted:01/18/2005 Analyzed: 01/18/2005 22:34 <br /> Dilution: 1.00 <br /> MSD: 2005101!18-2A.65-065 - _ - Extracted: 01/18/2005 Analyzed: 01/18/2005 23:00 <br /> Dilution: 1.00 <br /> Compound Conc. ug/L Spk.Level Recovery% Limits% Flags <br /> MS MSD Sample ug1L MS MSD RPD Rec, RPD MS MSD <br /> Methyl lert-butyl ether 20.0 20.6 ND 25 80,0 82.4 3.0 65-165 20 <br /> Benzene 20.2 19.3 ND 25 80.8 77.2 4.6 69-129 20 <br /> T61uene 20.7 19.7 ND 25 82.8 78.8 5.0 70-18 20 <br /> surrogates) <br /> 1,2-Dichloroethane-d4 415 445 500 83.1 88,9 73-130 <br /> Toluene-d8 483 480 1. 500 96.5 95.9 181-114- <br /> Severn <br /> 1-114Severn Trent Laboratories Inc. 01/24/2005 12:59• <br /> STL San Francisco*1220 Quarry Lane,Pleasanton,CA 94566 <br /> A part of Severn Tent Plc Tel 925 484 1919 Fax 925 484 1096*www.sti-inc.com*CA DHS FLAP#2496 Page 25 of 27 <br />