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I� <br /> 'W 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): 50308Tests)'8260B <br /> Laboratory Control Spike Water QC Batch#200411.0115-01.64 <br /> LCS 20.04/10/15-01.64-060 Extracted: 10/115/2004— Analyzed: 1011512004.08:59 <br /> LCSD 2004/10/15-01.64-053 Extracted:�`10115/2004 Analyzed:"10/15/2004 07:53 <br /> Compound Conc. ug/L Exp.Conc. Recovery% RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS I LCSD <br /> Methyl tert-butyl ether(MTBE) 21.3 24.5 25.0 85.2 98.0 14,0 65-165 20 <br /> ' Benzene 23.7 25,0 25.0 94.8 100.0 5.3 69-129 20 <br /> Toluene 24.3 25.2 25.0 i 97.2 100.8 3.6 70-130 20 <br /> Surrogates(s) <br /> ' 1,2-Dichloroethane-d4 451 504 500 90.2 100.8 72-128 0 <br /> Toluene-d8 499 548 500 99.8 109.6 1 1 80-113 D <br /> Severn Trent Laboratories, Inc. 10121/200415:46 <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 <br /> A part of Severn Trent Pk Tel 925 484 1919 Fax 925 484 1096'www.stl-inc.com"CA DHS E;LAP#2496 Page 20 of 23 <br />