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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: AE06455 Sample Date/Time: Monday, April 08, 2002 14:29:29 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8. mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE06455.315 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 13.000 13.323 0.000 0.01182 33.11 ug/L |> Sc-1 45 512207.198 1.262 512207.198 ug/L 1 Cr 52 10220.846 2.115 0.005 0.28372 12.46 ug/L I Cr 53 1306.774 0.448 0.002 0.75423 2.18 ug/L Mn 55 305699.631 0.474 0.595 19.89108 1.64 ug/L I Ni 60 829.379 1.120 0.002 0.32859 2.06 ug/L I Cu 63 230209.326 1.397 0.449 42.19099 2.25 ug/L L Cu 65 113072.161 2.036 0.221 42.68592 2.65 ug/L r Zn 66 3664.775 2.092 0.032 1.86156 4.35 ug/L I Zn 67 774.374 6.140 0.007 2.17767 6.60 ug/L I Zn 68 3253.615 2.367 0.029 2.25484 1.41 ug/L 1 > G© 72 101286.914 1.796 101286.914 ug/L 1 As 75 1134.961 7.056 0.009 0.42980 10.57 ug/L I Se 77 202.004 12.900 0.001 0.52217 28.82 ug/L L Se 82 257.340 4.636 0.001 0.27457 19.96 ug/L r Ag 107 150.003 14.530 -0.000 -0.03439 6.50 ug/L 1> In 115 1376111.905 2.148 1376111.905 ug/L 1 Sb 121 595.359 5.916 0.000 0.04529 8.46 ug/L L Sb 123 471.042 3.766 0.000 0.04705 7.42 ug/L r Ba 135 41231.368 0.180 0.022 14.70620 0.55 ug/L I Ba 137 72334.376 1.054 0.038 14.73806 1.24 ug/L 1 Ho 165 1882883.160 0.866 -0.008 ug/L |> Tb 159 1893417.545 0.555 1893417.545 ug/L I Tl 205 580.358 6.195 -0.000 -0.00219 63.06 ug/L L Pb 208 35462.022 1.294 0.018 0.97664 1.49 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 97.297 I Cr 52 1 Cr 53 1 Mn 55 1 Ni 60 1 Cu 63

Sample ID: AE06455 Report Date/Time: Monday, April 08, 2002 14:31:03 Page 1

NYC-WTC_000078350

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