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i <br /> i <br /> 1 <br /> {' ST L Submission M 2004-04-0691 <br /> 10 ME i <br /> Fuel Oxygenates by 82601 i <br /> it 1 <br /> i San Joaquin Company; Inc. <br /> Attn.: Dai Watkins <br /> 1120 Hollywood Ave, Suite 3 <br /> Oakland, CA 94602-1459 I <br /> I Phone: (510) 336-1772 Fax: (510)336-9119 <br /> ! Project: 9902.015 Received: 04/201200417:00 <br /> C. Navarra <br /> Site: 7500 W. 11th St.,Tracy <br /> Batch QC Report <br /> Prep(s): 5030B <br /> Test(s): 8260B <br /> Laboratory Control Spike Soil QC Batch#2004104128-02.62 <br /> 1 LCS 2004104!28-02.62-049 Extracted: 04/2812004 Analyzed:04/28/200417:49 <br /> LCSD 2004104128-02.62-012 Extracted: 04/28/2004 Analyzed:y ed. 0412812004 18:12 <br /> Compound Conc. ug/Kg Exp.Conc. Recovery% RPD1 Ctd.Limits% Flags <br /> 3 LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Benzene 43.7 45.8 50.0 87.4 91.6 4.7 69-129 20 <br /> Toluene 49.7 47.3 50.0 99.4 94.6 4.9 70-130 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 505 513 500 101.0 102.6 70-121 <br /> Toluene-d8 468 1473 1500 93.6 94.6 81-117 <br /> 4 � <br /> I <br /> I <br /> El <br /> x <br /> t <br /> -.� Severn Trent Laboratories, Inc. <br /> 04/301200415:51 <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 <br /> R Apal WS-T,WPk Tel 925 484 1919 Fax 925 484 1096 www.sti-inc.com•CA DHS ELAP#2496 Page 23 of 26 <br />