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SSubmission#: 2003-05-0770 <br /> ' Fuel Oxygenates by 8260B <br /> ATC Associates Inc. <br /> Attn.:Victoria Ellsworth <br /> 6602 Owens Drive Suite 100 <br /> Pleasanton, CA 94568 <br /> Phone: (925)460-5300 Fax: (925)463-2559 <br /> I� Project: 75.62503.3204 Received: 05/29/2003 11:10 <br /> Quik Stop#132 <br /> Site: 3555 West Hammer Lane, Stockton, CA <br /> '� II <br /> Batch QCReport' <br /> Prep(s): 50306 Test(s).,82608 <br /> Laboratory Control Spike Water,� QCBatch'#2003106109-4a 64 <br /> LCS 2003106109-1a.64-002 Extracted: 06/09/2003 Analyzed:.06/09/2003"1-1:4.1 <br /> LCSD 2003106109-1a.64-001 "Extracted:,0610912003 Analyzed ,0,6/0,91200312:03 <br /> Compound Conc. ug/L Exp.Conc. Recovery RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Benzene 22.5 22.7 25 90.0 90.8 0.9 69-129 20 <br /> Toluene 22.8 22.6 25 91.2 90.4 0.9 70-130 20 <br /> Methyl tert-butyl ether(MTBE) 24.8 24.4 25 99.2 97.6 1.6 65-165 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 480 456 500 96.0 91.2 76-114 <br /> Toluene-d8 492 472 500 98.4 94.4 88-110 <br /> Severn Trent Laboratories, Inc. 06»2/2003 08:50 <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 <br /> n partotSa ,a T..1 Pr Tel 925 484 1919 Fax 925 484 1096'www.stl-inc.com'CA DHS ELAP#2496 Page 15 of 18 <br />