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Case Narrative <br />Analytica Environmental Laboratories, Inc. <br />Work Order: B1009086 <br />(continued) <br />There are no LCS outliers. <br />MS/MSD and DUP OUTLIERS: <br />There are no MS/MSD or DUP outliers. <br />Test Method: 200.8 - Metals by ICP/MS - Total Recov. Uranium - Drinking Water <br />HOLDING TIMES: <br />Holding times were met for this test. <br />SAMPLE PREPARATION ISSUES AND OBSERVATIONS: <br />There were no unusual observations. <br />INSTRUMENT PERFORMANCE CHECKS: <br />Instrument checks were within method criteria. <br />INITIAL CALIBRATIONS: <br />Initial calibrations were within method criteria. <br />OPENING CONTINUING CALIBRATIONS: <br />Opening continuing calibrations were within method criteria. <br />CLOSING CONTINUING CALIBRATIONS: <br />Closing continuing calibrations were within method criteria or not applicable. <br />METHOD BLANK OUTLIERS: <br />There are no method blank outliers. <br />LCS OUTLIERS: <br />There are no LCS outliers. <br />MS/MSD and DUP OUTLIERS: <br />There are no MS/MSD or DUP outliers. <br />Test Method: 200.8 - Metals by ICP/MS - Total/TR - Drinking Water <br />Note that for copper, manganese, molybdenum, zinc the dissolved result is numerically <br />larger than is the total result. Manganese and molybdenum show a relative percent <br />difference between the two values that is less than 200, indicating that the numbers <br />cannot be considered significantly different. Copper has a dissolved value of 1.6 and a <br />total value of 1.2 with an RPD of 28.6%. Zinc has a dissolved value of 17 and a total <br />value of 13 with an RPD of 26.7%. The results for copper and zinc could indicate a <br />contribution from the filtration matrix or just sample variability. <br />HOLDING TIMES: <br />Holding times were met for this test. <br />SAMPLE PREPARATION ISSUES AND OBSERVATIONS: <br />There were no unusual observations. <br />INSTRUMENT PERFORMANCE CHECKS: <br />Instrument checks were within method criteria.