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i <br /> Engineers CASE NARRATIVE <br /> Planners <br /> Metals <br /> Economists <br /> Scientists 30034 <br /> I. Holding Time: <br /> All holding times were met. <br /> II. Analysis: <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 /> D. SRike_Sample Analysis: <br /> All acceptance criteria were met. <br /> E. Duplicate Sample Analysis: <br /> All acceptance criteria were met. <br /> F. Laboratory Control Sample Analysis: <br /> All acceptance criteria were met. <br /> G. ICP Serial Dilution: <br /> Not required for this level QC. <br /> H. Other• . <br /> Furnace Lead analysis required a 1: 10 sample dilution prior <br /> to analysis due to high sample concentration. <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 /> J <br /> Signed• Date• I Xt/91 <br /> Fred Bickell <br /> Cations Supervisor <br /> r <br /> 0 0 3.00 <br /> CH2M HILL Redding Environmental Laboratory 5090 Caterpillar Road 916.244.5227 <br /> Redding,California 96003 <br />