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1 <br /> STL ChromaLab Submission #. 2001-05-0013 <br /> Enwronmental Services(CA 1094) <br /> To Hydro Environmental Tech Test Method 82608 <br /> Attn Cynthia Avaklan Prep Method 5030B <br /> 1 Batch QC Report <br /> Fuel Oxygenates by 8260E <br /> 1 <br /> Matrix Spike{ MS!MSD Water QC Batch#2001105102-01 27 <br /> } <br /> Sample ID 010501-1515(MW-3) Lab Sample ID 2001-05-0013-003 <br /> 1 MS 2001105102-01 27-014 Extracted 05102/2001 20 55 Analyzed 05/02/2001 20 55 Dilution 1 0 <br /> MSD 2001105102-01 27-015Extracted 05/02/2001 21 24 Analyzed 05/02/2001 21 24 Dilution 1 0 <br /> 1 Compound Cone. [ug/L] Exp Conc [ug/L] IRecovery % RPD Ctrl Limas[%] Flags <br /> MS MSD Sample MS MSD I MS I MSD [%] Recovery RPD MS MSD <br /> 1 Methyl tent-butyl ether 419 461 ND 500 500 838 922 95 65-165 20 <br /> Surrogate(s) <br /> 1 2-Dichloroethane-d4 980 1059 Soo 500 980 1059 76-114 <br /> 1 <br /> 1 <br /> M <br /> 1 <br /> 1 <br /> 1 <br /> i <br /> 1 <br /> 1 <br /> i <br /> 1 <br /> 1220 Quarry LanePleasanton CA 94566-4756 <br /> Telephone (925)484-1919'Facsimile (925)484-1096 <br /> Printed on 05/04/2001 13 18 Page 7 of 7 <br /> 1 <br />