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i <br /> STL ChromaLab Submission #: 2001-08-0190 <br /> Environmental Services(CA 9094) <br /> To: CH2M Hill-Oakland Test Method: 8260E <br /> Attn: Keith Sheets Prep Method; 5030E <br /> Batch QC Report <br /> Fuel Oxygenates by 82608 (Low Leel) <br /> Laboratory Control Spike(LCSILCSD) 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 08116/200120:55 <br /> Compound Conc. [ug/L] Exp.Conc. [ug/L] Recovery[%] RPD Ctrl.Limits[%] Flags <br /> LCS LCSD LCS LCSD LCS LCSD 1%] Recovery {SPD LCS LCSD <br /> Methyl tort-butyl ether 19.8 19.9 25 25 79.2 79.6 0.5 65-165 20 <br /> Surrogate($) i <br /> 1,2-Dichloroethane-d4 553 536 500 500 110.6 107.2 76-114 <br /> l <br /> I <br /> 1220 Quarry Lane`Pleasanton,CA 94566-4756 {. <br /> Telephone:(825)484-1919`Facsimile:(925)484-1096 <br /> Printed on:08/20/2001 17:43 Page 7 of 9 <br />