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----------------- <br /> S T L <br /> Submission. 2005-10-0515 <br /> Gas/BTEX Friel 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: 410500011FA20 Received: 10/25/2005 16:05 <br /> Conoco Phillips#11195 <br /> Site: 16500 S. Interstate 5, Lathrop, CA <br /> - Batch QC Report <br /> Prep(s) 50308 <br /> Test(s):8260H <br /> Mafrlx Spike( MS/MSD) Water QC Batch#2005170128 2A:77 <br /> MSYMSD Lab ID: 2005-10=0462-.004 <br /> M.S: 200511012872A-71-044 Extracted: 10/28/2005 Analyzed; 10/26/2005 20:44 <br /> Dilution: - 1.00 <br /> 10SD: 2005!10128-2A.71-010, Extracted: 10/28/2005 Analyzed; 101281200521:10 <br /> Dilution:, 1.00 <br /> Compound Conc. uglL Spk.Level Recovery% Limits% Flags <br /> MS MSD Sample uglL MS MSD RPD Rec. RPD MS MSD <br /> Methyl tert-butyl ether 114 112 5,96 125 86.4 84-8 1.9 65-165 20 <br /> Benzene 143 140 27.1 125 92,7 90.3 2.6 69-129 20 <br /> Toluene 100 109 0.638 125 79.5 86.7 8.7 70-130 20 <br /> Surrogale(s) <br /> 1,2-Dichloroethane-d4 451 445 500 90.2 89.0 73-130 <br /> Toluene-d8 495 485 500 99.0 97-0 81-114 i <br /> i <br /> I <br /> Severn Trent Laboratories, Inc. 10131/200515:29 <br /> STL San Francisco`1220 Quarry Lane,Pleasanton,CA 94566 <br /> A Part us 5...m Treat Pic Tel 925 484 1919 Fax 925 484 1096`wvvw.stl-inc.com`CA DHS FLAP#2496 Page 34 of 37 r <br /> f <br />