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i <br /> Submission#: 2003-04-0389 <br /> r: STL <br /> Fuel Oxygenates by 8260B <br /> San Joaquin Company, Inc. <br /> Attn.: Dai Watkins <br /> 1120 Hollywood Ave, Suite 3 <br /> Oakland, CA 94602-1459 <br /> F Phone: (510) 336-1772 Fax: (510)336-9119 <br /> Project: 9902.013 Received: 04/15/2003 17:19 <br /> F C. Navarra <br /> :a <br /> Batch.QC:Report <br /> Prep(s): 50308 Test(s) 8260B <br /> Laboratory Control Spike.: Water. QC Batch#2003104125-02.62 <br /> LCS 2003104125-02,62-042 Extracted: 0412512003 . Analyzed: 041251200311:42 <br /> LCSD 2003104125-02.62=0143 Extracted:.0412512003 Analyzed::041251200312:04 <br /> ". Compound Cone. ug/L Exp,Conc. Recovery RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Methyl tert-butyl ether(MTBE) 29.8 27.4 25.0 119.2 109.6 8.4 65-165 20 <br /> Benzene 23.7 24.5 25.0 94,8 98.0 3.3 69-129 20 <br /> Toluene 1 24.5 24.6 25.0 98.0 98,4 0.4 70-130 20 <br /> Surrogates(s) <br /> ;. .1 1,2-Dichloroethane-d4 511 505 500 102.2 101.0 76-114 <br /> Toluene-d8 505 500 500 101.0 100.0 88-110 <br /> =1 <br /> r_. I <br /> - I <br /> I <br /> Severn Trent Laboratories, Inc. 05/06/2003 16:18 <br /> STL San Francisco.1220 Quarry Lane,Pleasanton,CA 94566 <br /> A part of 8—m hent PIG Tel 925 484 1919 Fax 925 484 1096'www,sll-Ine.com`CA DHS ELAP#2496 Page 25 of 28 <br /> r.i <br />