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SOMME STL Submission: 2005-05-0809 <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: 05/31/2005 16:13 <br /> Conoco Phillips# 11195 <br /> Site: 16500 South Interstate 5, Lathrop <br /> Batch,QC Report <br /> Prep(s): 50308: = Test(s) 826013 i, <br /> Matrlx Spike( MS 1 MSD ) Water QC Batch#.2005106108-1 B 64_', <br /> MSIMSD`' Lab ID. :: <br /> 2005 05.. -:001 , <br /> MS, 2005!06/08-98.64 035 Extacted 06/08/2005 Analyzed. Ofil0812005 15 35; <br /> Dilution.: 2.00 <br /> MSD 2005!06.108 9 B.64 059 _ Extracted:06/08/2005 Analyzed 0fi10812005 1 a:59 <br /> r„ <br /> Dilut2.00 <br /> Compound Conc, ugIL Spk.Level Recovery% Limits% Flags <br /> MS MSD Sample ug/L MS MSD RPD Rec. RPD MS MSD <br /> Methyl tert-butyl ether 95.6 98.2 44.8 50 101.6 106.8 5.0 65-165 20 <br /> Benzene 142 135 88,2 50 107.6 93,6 13.9 69-129 20 <br /> Toluene 65.5 64.2 16.3 50 98.4 95.8 2.7 70-130 20 <br /> Surrogate(s) <br /> 1,2-Dichloroethane-d4 500 486 500 100.0 97.2 73-130 <br /> Toluene-d8 521 473 500 104.2 94.6 1 81-114 <br /> Severn Trent Laboratories, Inc. 06114/200516:16 <br /> STL San Francisco"1220 Quarry Lane,Pleasanton,CA 94566 <br /> Apar o13--m Tent Pk Tel 925 484-1919 Fax 925 484 1096`www.stl-ine.com"CA DHS FLAP#2496 Page 30 of 33 <br />