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Submission#; 2002-11-0401 <br /> Fuel Oxygenates by 8260B <br /> ATC Associates Inc. STL San Francisco <br /> Attn.: Jim Lehrman 1220 Quarry Lane <br /> 6602 Owens Drive Suite 100 Pleasanton,CA 94566 <br /> ' Pleasanton, CA 94588 Tel:(925)484-1919 <br /> Phone: (925) 460-5300 Fax: (925)463-2559 Fax:(925)484-1096 <br /> www.stl-inc.comProlect: 75.fi2503.3203 Received: 11/191200213:25 <br /> www.chromalab.com <br /> Quik Stop# 132 <br /> Site: 3555 West Hammer lane CA DHS FLAP*2496 <br /> Stockton <br /> 1 <br /> Batch QC,Report- <br /> Preps) <br /> '5030B <br /> Test(s):82606 <br /> Matrix Spike ( M51 MSD.'): Water QC Batch'#2002117125-01.27 <br /> M*10 >> MS Lab..ID: 2002-11-0401 -010 <br /> MS ' 2002111125-01.27-012 Extracted: 11/25/2002 Analyzed: 11/25/2002 15:57 <br /> Dilution: 1.00 <br /> MSD: 2002111125-01.27-013 Extracted: 11/25/2002 Analyzed: 111251200216:19 <br /> Dilution. 1.00 <br /> Compound Conc. ug!L S k,Leve Recovery Limits% Flags <br /> MS MSD Sample u !L MS MSD I RPD Rec. RPD MS MSD <br /> ' Methyt tert-butyl ether 31.6 28.4 ND 25.0 126.4 113.6 10.7 65-165 20 <br /> Benzene 26.9 26.0 ND 25.0 107.6 104.0 3.4 69-129 20 <br /> Toluene 25.9 25.2 ND 25.0 103.6 100.8 2.7 70-130 20 <br /> Surrogete(s) <br /> ' 1,2-Dichloroethane-d4 454 444 500 90.8 88.8 76-114 <br /> Toluene-d8 1498 1,501 1 500 99.6 100.3 1 88-110 <br /> i <br /> 11/26/2002 16:58 STL San Francisco is part of Severn Trent Laboratories, Inc. Page 16 of 17 <br />