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Submission#: 2002-07-0582 <br /> Gas/BTEXFue! Oxygenates by 8260E <br /> `1 San Joaquin Company, Inc. STL San Francisco <br /> 1220 Quarry Lane <br /> Attn.: Dai Watkins Pleasanton,CA 94566 <br /> j 1120 Hollywood Ave, Suite 3 <br /> Oakland, CA 94602-1459 Tel:(925)484-1919 <br /> Phone: (510) 336-1772 Fax: (510) 336-9119 Fax:(925)484-1096 <br /> www.stl-inc.com <br /> Project: 9902.013 Received: 071291200217:28 www.chromalab.com <br /> C. Navarra <br /> CA DHS ELAP#2496 <br /> Batch QC Report <br /> Prep(s); 50308 . :. Test(s):8260FAB <br /> ,f Matrix Spike.(MS l MSD ) Water. QC Batch`#2002108101-01.62 <br /> MW-12A » M5 Lab ID: 2002-07-0582-014. <br /> MS;. 2002/08101-01.62-044: Extracted:0810112002 Analyzed:. 061011200211:44 <br /> Dilution: 1.00 <br /> MSD: 2002108101-01.62-007 Extracted:08/01/2002 Analyzed: 081011200212:07 <br /> f;;I Dilution, 1,00 <br /> Compound Conc. ug/L SpUevell Recovery Limits% Flags <br /> MS MSD Sample ug/L MS AVSD RPD Rec. RPD M5 MSD <br /> Benzene 18.7 18.4 ND 25.0 74.8 73.6 1.6 69-129 20 <br /> Toluene 20.6 20.1 ND 25.0 82.4 80.4 2.5 70-130 20 <br /> F=;%] Methyl tert-butyl ether 19.1 19.6 ND 25.0 76.4 78.4 2.6 65-165 20 <br /> Surrogate(s) <br /> 1,2-Dlchloroethane-d4 410 419 500 82.1 83.7 76-114 <br /> Toluene-d8 507 512 500 101.4 102.4 1 88-110 <br /> ,G <br /> F<i i <br /> �i <br /> j <br /> 08/02/2002 15:08 STL San Francisco is part of Severn Trent Laboratories,Inc. Page 20 of 21 <br /> 1d <br />