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Submission 2004-11-0824 <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 11/29/2004 10 55 <br /> Conoco Phillips#11192 <br /> Site 1403 Country Club Blvd , Stockton <br /> Batch QC Report <br /> Prep(s) 5030B Test(s) 8260FAB <br /> Matrix Spike { MS 1 MSD ] Water QC Batch#2 0 0 411 210 5-1A 64 <br /> MS/MSD Lab ID 2004-12-0056- 002 <br /> MS 2004/12/05-1A 64-050 Extracted 12/05/2004 Analyzed 12/05/2004 13 50 <br /> Dilution 1 00 <br /> MSD 2004112105-1A 64-012 Extracted 12/05/2004 Analyzed 12/05/2004 14 12 <br /> Dilution 100 <br /> Compound Cone ug1L S k Leve Recovery Limits% Flags <br /> MS MSD Sample ug1L MS MSD RPD Rec RPD MS I MSD <br /> Methyl tert-butyl ether 508 461 149 25 1436 1248 140 65-165 20 <br /> Benzene 31 3 301 NO 25 1252 1204 3 9 69-129 20 <br /> Toluene 318 302 NO 25 1272 1208 52 70-130 20 <br /> Surrogate(s) <br /> 1 2 Dichloroethane-d4 516 507 500 1032 1014 73-130 <br /> Toluene-d8 493 496 500 986 99 2 81-114 <br /> Severn Trent Laboratories, Inc 12/08/2004 18 40 <br /> STL San Francisco`1220 Quarry Lane Pleasanton CA 94566 <br /> A part of Severn 7reM Pk Tel 925 484 1919 Fax 925 484 1096`www stl-inc com'CA DHS ELAP#2496 Page 23 of 25 <br />