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1 <br /> o Submission: 2004-06-0583 <br /> S T L <br /> Fuel Oxygenates by 82606 <br /> ATC Associates Inc. <br /> Attn.:John Love <br /> ' 6602 Owens Drive Suite 100 <br /> Pleasanton, CA 94588 <br /> Phone: (925)460-5300 Fax: (925) 463-2559 <br /> a' Project: 75.62503.3205 Received: 06/17/2004 13:47 <br /> ` Quik Stop#132 <br /> ' Site: 3555 West Hammer Lane, Stockton,CA <br /> Batch QC-Re ort <br /> Prep(s): 50308 Test(# 826013 <br /> Laboratory Control Spike _ Water QC Batch#2004106123-02.66 <br /> LCS 2004106123-02.66-043 Extracted:`06/2312004 Analyzed: 061231200419:07 <br /> LCSD 2004106123-02.66-057 Extracted: 06/23/2004 Analyzed: 06/23/2004.19:32. <br /> ' Compound Conc. ug/L Exp.Conc. Recovery% RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS I LCSD <br /> l <br /> Methyl tent-butyl ether(MTBE) 27.4 27.5 25.0 109.6 110.0 0.4 65-165 20 <br /> ie Benzene 26.0 25.8 25.0 104.0 103.2 0.8 69-129 20 <br /> Toluene 26.0 24.4 25.0 104.0 97.6 6.3 70-130 20 <br /> Surrogates(s) <br /> ' 12-Dichloroethane-d4 445 463 500 89.0 92.6 72-128 <br /> Toluene-d8 1484 1479 1500 196.8 195.8 1 1 60-113 <br /> 1 <br /> 1 <br /> Severn Trent Laboratories, Inc. 061291200415:30 <br /> ' STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 <br /> A Gsrt of 8—m 77em Pk Tel 925 484 1919 Fax 925 484 1096'www.sti-inc.com'CA DHS EIRP#2496 Page 13 of 14 <br /> 1 <br />