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0��Alpha Analytical, Inc. <br /> 255 Glendale Ave. • Suite 21 • Sparks, Nevada 89431 -5778 <br /> (775) 355-1044 • (775) 355-0406 FAX a 1-800-283-1183 <br /> Date: Work Order: <br /> 03-Jan-07 OC Summary Report 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 />