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- st,am�ssion#; 2001-07-0434 <br /> STL ChromaLab ' <br /> Environmental Services(CA 1094) <br /> To: Wright Environmental Services Inc Test Method: 82606 <br /> Attn: Chris Palmer Prep Method: 50308 <br /> 'Batch QC Report <br /> Fuel Oxygenates by 82608 <br /> Laboratory Control Spike(LCS/LCSD) Water QC Batch#2001/07/25-01.27 <br /> LCS: 2001/07/25-01.27-004 Extracted: 07/25/200113:32 Analyzed 07/25/200113:32 <br /> LCSD: 2001/07/25-01.27-005 Extracted: 07/25/200113:56 Analyzed 07/25/200113:56 <br /> Compound Conc. [ug/L] Exp.Conc. [ug/L] Recovery[%] RPD Ctrl.Limits[%} Flags { <br /> LCS LCSD LCS LCSD LCS LCSD [%] Recovery 'RPD LCS LCSD <br /> Methyl tert-butyl ether 19.3 20.8 25.0 25.0 77.2 83.2 7.5 65-165 20 <br /> Surrogates) <br /> 1,2-Dichloroethane-d4 511 493 500 500 . 102.2 98.6 76-1:14 <br /> 4i <br /> (` \r 1220 Quarry Lane`Pleasanton,CA 94566-1756 <br /> V Telephone:(925)4841919`'Facsimile:(925)484-1096 <br /> Printed on:07/30/2001 14:15 Page 5 of 5 <br />