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E® Submission: 2004-07-0631 <br /> =21iw131"t S" I L <br /> ■ <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: 07/20/2004 17:03 <br /> Conoco Phillips#01205 <br /> Site: 16470 Cambridge 5t. Lathrop <br /> Batch QC Report <br /> Prep(s): 5030E Test(s): 8260FAB <br /> Matrix Spike ( MS/MSD J Water QC Batch #2004107/30-2A.64 <br /> MW-8 » MS Lab ID: 2004-07-0631 -010 <br /> MS: 2004/07/30-2A.64-019 Extracted:07/31/2004 Analyzed: 07/31/2004 01;19 <br /> Dilution: 1,00 <br /> MSD: 2004/07/30-2A.64-041 Extracted: 07/31/2004 Analyzed: 07/31/2004 01:41 <br /> Dilution: 1.00 <br /> Compound Conc. ugfL Spk.Level Recovery% Limits% Flags <br /> MS MSD Sampie uglL MS MSD RPD Rec. RPD MS M513 <br /> Benzene 23.9 24.9 ND 25 95.6 99-6 4.1 69-129 20 <br /> Toluene 275 29.2 ND 25 110.0 116.8 6.0 70-130 20 <br /> Methyl tert-butyl ether 29.1 30.0 ND 25 116.4 120.0 3.0 65-165 20 <br /> Surrogate(s) <br /> 1,2-Dichloroethane-d4 563 529 500 112-6 105.8 72-128 <br /> Toluene-d8 547 548 500 109.4 1109.6 1 80-113 <br /> Severn Trent Laboratories, Inc. 08/02/200416:00 - <br /> STL San Francisco'1220 Quarry Lane, Pleasanton, CA 94566 <br /> a pan 4sav—T—t pig Tel 925 484 1919 Fax 925 484 1096'www.stknc.com`CA DHS FLAP#2496 Page 22 of 23 <br />