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CHROMALAB, INC. Submission#: 1999-12-0377 ! <br /> Environmental Services(SDB) <br /> To. CH2M Hill-Oakland Test Method: 8260A <br /> Attn.: Keith Sheets Prep Method: 8260A . <br /> .Batch QC Report {' <br /> Fuel Oxygenates by GUMS <br /> Matrix Spike{ MS 1 MSD ) Soil QC Batch #1999112130-01.06 <br /> Sample ID: CPT-3(30-31') Lab Sample ID: 1999-12-0377-010 <br /> MS: 1999112130-01.06-004 Extracted: 12/30/1999 15:04 Analyzed: 12/30/1999 15:04 Dilution: 1.0 <br /> MSD: 1999/12/30-01.06-005 Extracted: 12/30/199915:31 Analyzed: 121301199915:31 Dilution: 1.0 <br /> Compound Conc. ug/Kg j Exp.Conc. [ug/Kg] Recovery[%I RPD FCtrl. Limits[%] Flags <br /> MS MSD Sample MS MSD MS MSD [%] RecoveryRPD MS MSD <br /> Methyl tert-butyl ether 91.6 99.5 ND 87.3 99.0 104.9 100.5 4.3 65-165 20 <br /> Surrogate(s) <br /> ` 1,2-Dichloroethane-d4' 497 462 500 500 99.4 92.4 70-121 <br /> r' <br /> r. <br /> I1 <br /> I <br /> I <br /> wf <br /> I <br /> I <br /> IIk <br /> I <br /> i <br /> 1220 Quarry Lane",Pleasanton,CA 94566-4756 <br /> Telephone:(925)484-1919"Facsimile:{925)484-1096 <br /> Printed on:01103/200015:06 Page 5 of 5 I <br /> i <br />