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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 14:05:17 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE06449.307 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 16.667 29.597 0.000 0.01987 55.13 ug/L |> Sc-1 45 515150.719 0.564 515150.719 ug/L I Cr 52 9226.105 0.642 0.003 0.17438 3.63 ug/L I Cr 53 849.715 6.495 0.001 0.35099 14.67 ug/L 1 Mn 55 280282.913 1.591 0.542 18.12593 2.16 ug/L I Ni 60 857.716 6.700 0.002 0.33829 6.68 ug/L I Cu 63 5914.317 3.180 0.011 1.03527 2.76 ug/L L Cu 65 2723.435 2.902 0.005 0.97272 2.48 ug/L r Zn 66 1705.845 8.399 0.013 0.73327 11.88 ug/L 1 Zn 67 498.019 4.472 0.004 1.27523 6.47 ug/L I Zn 68 1910.554 7.552 0.016 1.20950 9.91 ug/L 1> Ge 72 102116.026 0.806 102116.026 ug/L I As 75 1131.142 7.996 0.009 0.42300 10.08 ug/L Se 77 164.003 12.776 0.000 0.29179 41.17 ug/L L Se 82 245.339 2.491 0.000 0.21397 15.21 ug/L r Ag 107 715.702 6.011 0.000 0.01427 30.25 ug/L |> In 115 1419276.223 1.014 1419276.223 ug/L I Sb 121 629.028 4.275 0.000 0.04682 5.00 ug/L L Sb 123 503.165 4.640 0.000 0.04936 7.25 ug/L r Ba 135 43016.303 1.147 0.022 15.00107 1.74 ug/L I Ba 137 74163.374 0.986 0.038 14.77299 1.13 ug/L I Ho 165 1929140.378 1.849 -0.007 ug/L l> Tb 159 1936810.407 1.420 1936810.407 ug/L I Tl 205 729.703 2.879 0.000 0.00300 20.01 ug/L L Pb 208 4623.518 23.215 0.001 0.08194 39.19 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 97.857 I Cr 52 I Cr 53 I Mn 55 I Ni 60 I Cu 63

Sample ID: AE06449 Report Date/Time: Monday, April 08, 2002 14:06:52 Page 1

NYC-WTC_000078334

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