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' Submission # 2001-10-0133 <br /> . Gas/BTEXFuel Oxygenates by 8260B <br /> Batch QC report <br /> STL Chromalab <br /> Test Method 8260B Prep Method 5030B 1220 Quarry Lane <br /> Pleasanton CA 94566 <br /> Laboratory Control Spike(LCS/LCSD) Water QC Batch#2001110112-01 27 Tel 925484 1919 <br /> Analyzed Fax 925 48410% <br /> LCS 2001110112-01 27-003 Extracted 10/12/2001 11 23 Yz 10/12/2001 11 23 www all me com <br /> LCSD 2001/10112-01 27-004 Extracted 10/12/2001 11 50 Analyzed 10/12/2001 11 50 www chromalab corn <br /> CA DHS ELAP#1094 <br /> Compound Cone [uglL] Exp Cone [ug/Ll Recovery[%J RPD Ctrl Limits[%] Flags <br /> LCS LCSD LCS LCSD LCS LCSD [%] Recovery RPD LCS LCSD <br /> Benzene 252 266 25 0 25 0 1008 1024 1 6 69-129 20 <br /> Toluene 25 0 254 250 25 0 1000 1016 16 70-130 20 <br /> Methyl tert-butyl ether 221 21 4 25 0 250 884 85 6 3 2 65-165 20 <br /> Surrogate(s) <br /> 1 2 Dichloroethan"4 504 515 5o0 500 1008 1030 76 114 <br /> Toluene-d8 508 $35 500 500 1016 1070 88-110 <br /> • <br /> STL Chromalab is a part of Severn Trent Laboratories Inc Page 17 of 22 <br />