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Water sample metal analysis results, April 9, 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_000040341–000040450

Folder label: “ICPMS 4/9/02

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: ICV STD1 30 PPB Sample Date/Time: Tuesday, April 09, 2002 12:17:00 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\ICV STD1 30 PPB.368 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 14917.713 1.371 0.028 29.67487 1.51 ug/L > Se-1 45 534864.904 0.517 534864.904 ug/L Cr 52 299676.292 0.595 0.546 30.07459 0.25 ug/L Cr 53 35515.263 0.952 0.065 30.41637 1.28 ug/L Mn 55 471322.870 0.946 0.879 29.99971 1.23 ug/L Ni 60 72554.536 2.311 0.136 29.47550 2.66 ug/L Cu 63 168562.834 1.059 0.315 30.26317 1.40 ug/L Cu 65 81360.335 1.757 0.152 29.59387 1.94 ug/L Zn 66 53659.455 1.454 0.530 30.13336 0.73 ug/L Zn 67 9473.363 2.209 0.093 30.10981 1.32 ug/L Zn 68 39521.460 1.414 0.390 29.98577 0.58 ug/L > Ge 72 100313.127 1.172 100313.127 ug/L As 75 61784.403 1.137 0.613 30.36616 0.12 ug/L Se 77 5383.315 2.382 0.052 30.61978 3.15 ug/L Se 82 7226.611 2.036 0.070 30.21578 2.06 ug/L Ag 107 335106.877 0.350 0.239 29.57407 1.63 ug/L > In 115 1398600.019 1.762 1398600.019 ug/L Sb 121 286587.061 1.184 0.205 30.70076 1.60 ug/L Sb 123 220273.257 1.258 0.157 30.48431 0.52 ug/L Ba 135 84506.471 0.507 0.045 30.40322 0.44 ug/L Ba 137 147760.045 1.184 0.078 30.28269 0.66 ug/L Ho 165 1875954.928 0.972 -0.004 ug/L > Tb 159 1882916.275 0.536 1882916.275 ug/L TI 205 786944.780 0.742 0.418 30.34522 1.25 ug/L Pb 208 1062363.536 0.751 0.563 30.34709 0.39 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 97.695 Cr 52 Cr 53 Mn 55 Ni 60 Cu 63

Sample ID: ICV STD1 30PPB Report Date/Time: Tuesday, April 09, 2002 12:19:12 Page 1

NYC-WTC_000040349

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