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Water metal analysis results, April 8, 2002

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Laboratory report from Westchester County Dept of Labs and Research detailing Method 200.8 metal concentrations in water samples dated April 8, 2002.

NYC-WTC_000078316–000078395

Folder label: “ICPMS 4/8/02

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: AE06449 Sample Date/Time: Monday, April 08, 2002 14:08:47 Sample Type: Spike -1 Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE06449.308 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 r Be 9 23398.643 0.984 0.046 48.82335 0.81 ug/L i> Sc-1 45 510059.835 1.678 510059.835 ug/L I Cr 52 474436.469 2.967 0.916 50.44453 1.92 ug/L 1 Cr 53 55614.818 0.239 0.108 50.34627 1.79 ug/L I Mn 55 1016903.789 2.627 1.992 67.95566 2.34 ug/L I Ni 60 114732.736 1.705 0.225 48.89358 1.97 ug/L I Cu 63 270856.763 1.141 0.531 51.03232 1.76 ug/L L Cu 65 133531.194 0.211 0.262 50.98133 1.91 ug/L r Zn 66 94739.052 0.718 0.937 53.23919 0.62 ug/L Zn 67 16563.911 1.594 0.163 52.78078 1.34 ug/L I Zn 68 69921.708 2.855 0.691 53.09952 2.83 ug/L i> Ge 72 100620.842 1.239 100620.842 ug/L As 75 104804.960 1.862 1.038 51.45426 0.63 ug/L I Se 77 9458.350 3.689 0.093 54.21804 3.19 ug/L L Se 82 12906.956 2.569 0.126 54.43708 2.13 ug/L r Ag 107 536882.442 1.921 0.387 47.98857 1.68 ug/L i> In 115 1382879.670 1.117 1382879.670 ug/L I Sb 121 487940.762 1.020 0.353 52.86355 0.10 ug/L L Sb 123 374704.813 0.928 0.271 52.45053 0.84 ug/L r Ba 135 178289.866 1.981 0.093 63.28184 0.95 ug/L 1 Ba 137 313701.845 1.771 0.164 63.42937 1.74 ug/L I Ho 165 1892501.051 1.608 -0.009 ug/L |> Tb 159 1909540.279 1.953 1909540.279 ug/L I Tl 205 1270163.826 1.195 0.665 48.31353 1.30 ug/L L Pb 208 1704849.818 0.967 0.892 48.05625 1.01 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff r Be 9 |> Sc-1 45 93.165 I Cr 52 I Cr 53 I Mn 55 I Ni 60 I Cu 63

Sample ID: AE06449 Report Date/Time: Wednesday, April 10, 2002 08:01:22 Page 1

NYC-WTC_000078336

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