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GROSS ALPHA/SETA SLANR SPIKE RESULTS <br />Method 900.0/9310 (Modified) <br />Lab Name: Paragon Analytics, Inc. <br />Client Name: Shared QC <br />Client Project ID LCS <br />Lab Workorder Number 00-06-283 <br />Date Collected: 07/05/2000 <br />Date Analyzed 07/10/2000 <br />Sample Matrix Water <br />Alpha Recovery Data <br />Units pCi/1 <br /> <br />Lab Sample ID Alpha <br />Spike Added Alpha <br />Reported Percent <br />Recovery <br />Flag <br />00-06-283-51 251.6 185.4 73.7 Pass <br />Beta Recovery Data <br /> <br />Lab Sample ID Beta <br />Spike Added Beta <br />Reported Percent <br />Recovery <br />Flag <br />00-06-283-51 248.4 255.4 102.8 Pass <br />PAI sets control limits for gross alpha/beta measurements based on <br />EPA/EMSL Laboratory Intercomparison Control Limits. <br />Acceptance Range for Percent Recovery of blank spike samples <br />is known + 30%. <br />Remarks: <br />LCS is shared for workorders 0006283, 0006289, and 0006286. <br />QOuO4 ,u(y' <br />