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Yfll <br /> Submission#: 2003-04-0389 <br /> I <br /> -_ S T L <br /> Fuel Oxygenates by 82608 <br /> r San Joaquin Company, Inc. <br /> Attn.: Dai Watkins <br /> 1120 Hollywood Ave, Suite 3 <br /> Oakland, CA 94602-1459 <br /> Phone: (510) 336-1772 Fax: (510) 336-9119 <br /> Project: 9902.013 Received: 04/15/2003 17:19 <br /> C. Navarra <br /> -i <br /> Batch QCReport <br /> 1 <br /> Prep(s): 50306 Test(s):82608. <br /> i <br /> Matrix Spike[MS/MSD } Water: QC`Batch'#2003104122-02.65 <br /> MW-2' >a MS ,:...Lab ID: 2003-044389-.002 . <br /> I MS. 2003104122-02.65-050 Extracted::04/23M03 Analyzed. 04/23/2003 01:08 <br /> Dilution: 1,00. <br /> MSD: 2003104122-02.65-051 Extracted;04/23/2003 Analyzed: 04/2312003.01:30 <br /> ,.- Dilution; 1.00 <br /> Compound Conc. ug1L Spk.Level Recovery Limits% Flags <br /> j MS MSD Sample ug/L MS MSD RPD Rec. RPD MS MSD <br /> Methyl tort-butyl ether 27,0 26.1 3.36 25.0 94.6 91,0 3.9 66-165 20 <br /> Benzene 19.8 20.1 ND 25.0 79.2 80.4 1.5 69-129 20 <br /> Toluene 19.6 19.6 ND 25.0 78.4 78.4 0.0 70-130 20 <br /> Surrogate(s) <br /> I'a 1,2-1)lchloroethane-d4 574 569 500 114.7 113.8 76-114 sh <br /> Toluene-d8 487 480 500 97,5 96.0 88-110 <br /> 4= <br /> J <br /> r i <br /> ,I Severn Trent Laboratories, Inc. 051061200316:16 <br /> STL San Francisco�1220 Quarry Lane,Pleasanton,CA 94566 <br /> Apert of Sevem Trent Plc Tel 925 484 1919 Fax 925 484 1096*www.sil-inc.com•CA DHS ELAP*2496 Page 26 of 28 <br /> :I <br /> � I <br />