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C H RO MALAB, INC. Submission #: 2000-03.0366 <br /> Environmental Services(SDS) <br /> To: CH2M Hill-Oakland Test Method: 8260A <br /> Attn.: Keith Sheets Prep Method: 8260A <br /> Batch QC Report <br /> Fuel Oxygenates by GC/MS f <br /> Matrix Spike(MS 1 MSD) Water QC Batch#2000103124-02.39 f <br /> Sample ID: CPT-14(94) Lab Sample ID:2000-03-0366-002 <br /> MS: 2000103124-02.39-004 Extracted:03/25/2000 02:59 Analyzed: 03/25/200002:59 Dilution: 1.0 <br /> MSD: 2000103124-02.39-005 Extracted:03/25/2000 03:28 Analyzed: 03/251200003:28 Dilution:' 1.0 <br /> Compound Cont u IL Ex .0 o 0 <br /> p 19 ] anc. u lL Recovery(/o RPD Ctrl.Limits(k] Flags <br /> MS I MSD ISample MS MSD MS MSD i%i Recoveryl RPD MS MSD <br /> Methyl tort-butyl ether 62.5 57.0 ND 50.0 50.0 125.0 114.0 9.2 65-165 20 <br /> Surrogate(s) <br /> 1,2-Dichioroethane-d4 548 526 500 500 109.6 105.2 76-114 ' <br /> I <br /> , <br /> I <br /> I. <br /> 1 <br /> i <br /> r <br /> f <br /> I <br /> 1220 Quarry Lane'Pleasanton,CA 94566-4756 <br /> Telephonw.(925)484-1919`Facsimile:(925)464-1096 <br /> Printed on:03!2712000 10:03 Page 6 of 6 <br />