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. C H ROMALAB, INC. r Submission # 2000-04-0434 - <br /> Environmental Services(SDS) <br /> To Wright Environmental Services Inc Test Method 8260A <br /> • Attn Chris Palmer Prep Method 8260A <br /> Batch QC Report <br /> Fuel Oxygenates by GC/MS <br /> Laboratory Control Spike (LCS/LCSD) Soil QC Batch #2000105/02-01 39 <br /> LCS 2000/05102-01 39-002 Extracted 05/02/2000 15 21 Analyzed 05/0212000 15 21 <br /> LCSD 2000105/02-01 39-003 Extracted 05/02/2000 15 59 Analyzed 05/02/2000 15 59 <br /> Compound Conc (ugJKg] Exp Conc [ug/Kg lRecovery[%] RPD Ctrl Limits[%] Flags <br /> LCS LCSD LCS LCSD LCS LCSD (%] Recovery RPD LCS LCSD <br /> Methyl tert-butyl ether 103 116 100 0 100 0 1030 1160 119 65-165 20 <br /> Surrogate(s) <br /> 1 2-Dichloroethane-d4 543 544 500 500 1086 1088 70-121 <br /> 1220 Quart'Lane'Pleasanton CA 945664756 <br /> Telephone (925)484-1919*Facsimile (925)484-1096 <br /> Printed on 05/05/2000 11 20 Page 17 of 20 <br />