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i <br /> 1 i <br /> Submission: 2004-10-0076 <br /> Fuel Oxygenates by 8260B <br /> ATC Associates Inc. <br /> Attn.: Victoria Ellsworth <br /> 6602 Owens Drive Suite 100 <br /> Pleasanton, CA 94588 <br /> Phone: (925)460-5300 Fax: (925) 463-2559 <br /> Project: 75.62503.3205 Received: 10/01/2004 12:15 <br /> Quik Stop#132 <br /> Site: 3555 West Hammer Lane, Stockton, CA <br /> Batch QC Report —__-- —_ <br /> Prep(s): 503013_ -•Test(s):.826013 <br /> Laboratory Control.Spike Water ; QC Batch#2004/10/14-02.64 <br /> LCS 2004110/14=02.64-053 Extracted:1 011 412 0 04 Analyzed: 10/14/2004 18:53 <br /> LCSD 2004110114-02.64-016 Extracted: 10114/2004' Analyzed: 1011412004.1.9:16 <br /> Compound Conc. ug/L Exp.Conc. Recovery% RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> 1• Methyl tert-butyl ether(MTBE) 26.2 25.8 25.0 104.8 103.2 1.5 65-165 20 <br /> Benzene 27.5 27.1 25.0 110.0 108.4 1.5 69-129 20 <br /> Toluene 27.0 28.0 25.0 108.0 112.0 3.6 70-130 20 <br /> Surrogates(s) <br /> ' 1,2-Dichloroethane-d4 533 551 500 106.6 110.2 72-128 <br /> Toluene-d8 577 573 500 115.4 114.6 80-113 S5 S5 <br /> '• Severn Trent Laboratories, Inc. 10/21/2004 15:46 <br /> STL San Francisco*1220 Quarry Lane,Pleasanton,CA 94566 <br /> A part of S"ern Tram Pic Tel 925 484 1919 Fax 925 484 1 096*www.stl-inc.com*CA DHS FLAP#2496 Page 19 of 23 <br />