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T Alpha Analytical, Inc. " <br /> 255 Glendale Ave. • Suite 21 • Sparks, Nevada 89431-5778 <br /> (775) 355-1044 • (775) 355-0406 FAX 9 1-800-283-1183 <br /> 03Jan-07 OC Summary Report Work Order: <br /> 06120852 <br /> Comments: <br /> Calculations are based off of raw (non-rounded) data. However, for reporting purposes, all QC data is rounded to three significant figures. Therefore, hand calculated <br />! values may differ slightly. <br /> M3 = The accuracy of the spike recovery value is reduced since the analyte concentration in the sample is disproportionate to the spike level. The method control <br /> sample recovery was acceptable. <br /> R5 = MS/MSD RPD exceed the laboratory control limit. Recovery met acceptance criteria. <br /> R58 = MS/MSD RPD exceeded the laboratory control limit. <br />