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QRION <br /> described below. QA/QC samples .prepared by the laboratory will include method <br /> blanks, matrix spike and matrix-spike duplicates, and laboratory control samples. <br /> L <br /> The laboratory results will be reviewed in general accordance with EPA guidelines for <br /> data validation. The data validation process will include reviewing laboratory results for <br /> the following.parameters: <br /> ❑ Completeness of the data package <br /> ❑ Compliance with EPA-required holding times <br /> ' ❑ Agreement of dilution factors with reported detection limits <br /> ❑ Presence or absence of analytes in the method blanks <br /> ❑ Agreement of duplicate samples <br /> i ❑ Percent recovery and relative percent difference results for matrix spike and <br /> matrix spike duplicate analyses <br /> ❑ Percent recovery results for laboratory control samples. <br /> L <br /> L <br /> L <br /> L <br /> L <br /> L' <br /> 5:\BFS\STOCKTON\WKPOOI.DOC 10127M 3.2 <br /> r <br />