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STL ChromaLab Submission #. 2001-08-0214 <br /> Environmental Services(CA 1094) <br /> To: CH2M Hill-Oakland Test Method; 8260E <br /> l <br /> Attn: Keith Streets Prep Method: 5030B <br /> Batch QC Report <br /> Fuel Oxygenates by 8260B (Low Level) <br /> Laboratory Control Splke(LCS/LCSD) Water QC Batch#2001108116-V1.27 <br /> LCS: 2001108116-V1.27-018 Extracted: 081161200120:33 Analyzed 081161200120:33 <br /> LCSD: 2001108116-V1.27-019 Extracted: 081161200120:55 Analyzed 081161200120:55 <br /> Compound Cone. [ug/L] Exp.Cone. [ug/L] Recovery[%] RPD Ctri.Limits[%] Flags <br /> LCS LCSD LCS LCSD LCS LCSD [%) Recovery RPD LCS LCSD <br /> Methyl tert-butyl ether 19.8 19.9 25 25 79.2 79.6 0.5 65-165 20 <br /> Surrogate(s) <br /> 1,2-Dichloroelhane-d4 553 536 500 500 110.6 .107.2 76-114 <br /> I ' <br /> i <br /> j <br /> I <br /> I <br /> I <br /> i <br /> 1220 Quarry Lane"Pleasenlon,CA 94566-4756 <br /> Telephone:(925)484-1919"Facsimile:(925)484-1096 <br /> Printed on:08/17/2001 12:02 Page 5 of 6 <br /> , <br />