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II <br /> Submission #: 2001-07-0434 <br /> STL ChromaLab <br /> Environmental Services(CA 1094) <br /> To: Wright Environmental Services Inc Test Method: 8260E <br /> Attn.: Chris Palmer Prep Method: 50306 <br /> Batch QC Report <br /> Fuel Oxygenates by 82606 <br /> Matrix Spike( MS/MSD) Soil QC Batch#2001/07/27-02.27 <br /> Sample ID: B-10-2@11' Lab Sample ID: 2001-07-0434-001 <br /> MS: 2001/07127-02.27-011 Extracted:07/27/2001 17:14 Analyzed: 07/27/2001 17:14 Dilution: 1.0 <br /> MSD: 2001/07/27-02.27-012 Extracted:07/27/200117:38 Analyzed: 07/271200117:38 Dilution: 1.0 <br /> Compound Conc [ug/Kg} Exp.Conc. [ug/Kg] Recovery[30}RPD Ctrl.Limits[%} Flags <br /> MS MSD Sample MS MSD MSE MSD [%] Recovery RPD MS MSD <br /> I <br /> Methyl tert-butyl ether 40.4 42.9 ND 50.0 49-9 80.8 86.0 6.2 65-165 20 <br /> Surrogate(s) <br /> 1,2-Dichloroethane-d4 546 566 500 500 109.2 1132 70-121 <br /> a <br /> a <br /> 1220 Quarry Lane`Pleasanton,CA 94566-4756 <br /> Telephone:(925)484-1919`Facsimile:(925)484-1096 <br /> Printed on:07/30/2001 14:16 Page 8 of 8 <br />