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i <br /> Engineers CASE NARRATIVE <br /> - <br /> Planners. Metals <br /> Economists <br /> Scientists 30710 <br /> ! I. Holding Time: <br /> All holding times were met. <br /> II. Analysis: <br /> i <br /> A. Blanks: <br /> All acceptance criteria were met. <br /> B. Calibration: <br /> All acceptance criteria were met. <br /> C. ICP Interference Check Sample: <br /> All acceptance criteria were met. <br /> v D. Spike Sam le Analysis,: <br /> All recovery criteria was met. <br /> E. Duplicate Sample Analysis: <br /> All duplication criteria was met. <br /> F. Laboratory Control Sample Analysis: <br /> All acceptance criteria were met. <br /> G. ICP S rial Dilution: <br /> Not required for this level QC. <br /> H. Other: <br /> Sample -4 required a dilution of one to five prior to <br /> j Furnace Lead analysis. <br /> III. I certify that this data package is in compliance with the <br /> terms and conditions agreed to by the client and CH2M HILL, <br /> both technically and for completeness, for other than the <br /> conditions detailed above. <br /> Signed: Date: /3 9 <br /> Fred Bickell <br /> ` Cations Supervisor <br /> 1 <br /> l <br /> CH2M HILL Redding Environmental Laboratory 5090 Caterpillar Road 946.244,522p � �, n <br /> Redding,California 96003 Uit v ;. Q 2 <br /> t <br />