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Submiss�on # 2D01-07-0582 II <br /> STL ChromaLab <br /> Environmental Services(CA 1094) <br /> To Wright Environmental Services Inc Test Method 82608 <br /> Attn Marla Reid/ Scott Cragln Prep Method 5030B <br /> Batch QC Report <br /> Fuel Oxygenates by 8260B <br /> Laboratory Control Spike (LCSILCSD) Water QC Batch #2001108101-01 27 <br /> LCS 2001/08/01-01 27-004 Extracted 08/01/2001 12 47 Analyzed 08/01/2001 12 47 <br /> LCSD 2001108101-0127-005 Extracted 08101120011314 Analyzed 08101120011314 <br /> Compound Conc [ug/L] Exp Conc [uglL] Recovery[%]I RPD Ctrl Limits[%] Flags <br /> LCS LCSD LCS LCSD LCS I LCSD [%] Recovery RPD j LCS LCSD <br /> Methyl tert-butyl ether 223 217 21 1) 250 89 21 868 27 65-155 I 20 <br /> Surrogate(s) j <br /> 1 2-Dichloroethane-d4 535 540 500 500 10701 1080 76-114 <br /> I <br /> r <br /> • <br /> 1220 Quarry Lane'Pleasanton CA 94566-4756 <br /> Telephone (925)484-1919'Facsimile (925)484-1096 <br /> Printed on 08/02/2001 16 49 Page 12 of 14 <br />