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From:STL ChromaLab To;Dal Watkins Date:12121/01 Time:e:09:so Pm Fax Page 40 of 43 <br /> Submission#: 2001.12-022 <br /> i <br /> Gas/BTEX by 8015M18021 <br /> i <br /> Batch QC report <br /> STL Chromalab <br /> Test Method: 8015M Prep Method: 5030 1220 Quarry Lane <br /> i Pleasanton.CA 94666 <br /> Laboratory Control Spike(LCSILCSD) Water QC Batch#2001112120-01.04 Tel 925 484 1919 <br /> Fax 926 484 1 096 <br /> LCS: 2001112120-01.01-006 Extracted: 121201200109:31 Analyzed: 121201200109:31 www.stl-Inc.com <br /> i LCSD: 2001112120-01.01-007 Extracted: 121201200110:00 Analyzed: 12/201200110:00 www.chromalab,com <br /> CA DHS ELAP#1094 <br /> Compound Cone,[uglL] Exp.Conc.[uglL] Recovery[%] RPD Ctrl.Limlts t%] Flags <br /> LCS LCSD LCS LCSD LCS LCSD [%[ Recovery <br /> RPD LC5 LCSD <br /> Gasoline 487 496 Wo 600 97.4 99.0 1.6 75-125 20 <br /> surrogate(s) <br /> r��l <br /> J 4-Bromofluorobenzone- 376 374 600 600 76.2 74.8 60-160 <br /> I <br /> ,1 <br /> >i <br /> �i <br /> =i <br /> i <br /> STL Chromalab is a part of Severn Trent Laboratories,Inc. Page 12 of 15 <br /> i <br />