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Water sample metal analysis results, April 22, 2002

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Summary report of water sample analysis using Method 200.8 showing measured intensities and concentrations for various metals.

NYC-WTC_000040925–000040974

Folder label: “ICPMS 4/22/02

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: CCV STD2 60 PPB AND 5 PPB Sample Date/Time: Monday, April 22, 2002 15:44:41 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\CCV STD2 60 PPB AND 5 PPB.541 Aliquot Volume (mL): Diluted To Volume (mL):

Concentration Results Analyte Mass Meas. Intens. Mean Meas. Intens. RSD Net Intens. Mean Cone. Mean Cone. RSD Sample Unit Be 9 25039.691 1.367 0.051 64.99653 1.57 ug/L > Se-1 45 494442.662 2.230 494442.662 ug/L Cr 52 543406.316 2.329 1.084 59.78587 0.12 ug/L Cr 53 64300.272 1.509 0.129 59.91022 0.80 ug/L Mn 55 848958.032 1.338 1.715 59.91870 1.49 ug/L Ni 60 132513.611 1.584 0.268 59.67053 2.33 ug/L Cu 63 297952.698 1.627 0.602 59.36568 1.30 ug/L Cu 65 147786.678 2.005 0.298 59.28172 0.75 ug/L Zn 66 96998.711 0.579 1.049 61.14260 1.96 ug/L Zn 67 17216.794 0.929 0.186 59.86756 1.12 ug/L Zn 68 71755.466 0.784 0.776 60.82688 0.86 ug/L > Ge 72 91831.139 1.585 91831.139 ug/L As 75 109084.465 0.674 1.188 59.61549 2.05 ug/L Se 77 10271.285 1.991 0.111 60.29371 3.39 ug/L Se 82 12166.261 2.570 0.132 59.09834 3.87 ug/L Ag 107 572200.893 0.116 0.462 59.07774 0.32 ug/L In 115 1233389.817 0.334 1233389.817 ug/L Sb 121 489122.844 0.486 0.397 59.60325 0.17 ug/L Sb 123 377464.338 0.653 0.306 59.38566 0.85 ug/L Ba 135 147616.751 1.221 0.088 59.66353 1.41 ug/L Ba 137 254282.733 1.195 0.152 59.05999 0.91 ug/L Ho 165 1668923.913 1.938 0.010 ug/L > Tb 159 1667529.097 1.796 1667529.097 ug/L Hg 201 5446.686 0.911 0.003 5.04134 1.24 ug/L Hg 202 12337.156 0.637 0.007 5,03659 1.21 ug/L TI 205 1356735.410 1.978 0.813 60.03863 0.18 ug/L Pb 208 1844114.598 1.598 1.105 60.31738 0.54 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ’ Be 9 > Se-1 45 101.127 Cr 52 Cr 53 Mn 55

Sample ID: CCV STD2 60 PPB AND 5 PPB Report Date/Time: Monday, April 22, 2002 15:46:52 Page 1

NYC-WTC_000040973

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