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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: AE06454 Sample Date/Time: Monday, April 08, 2002 14:26:39 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE06454.314 Aliquot Volume (mL): Diluted To Volume (mL):

Concentration Results /Knalyte Mass Meas. Intens. Mean Meas. Intens. RSD Net Intens. Mean Cone. Mean Cone. RSD Sample Unit r Be 9 12.000 16.667 0.000 0.01029 42.85 ug/L |> Sc-1 45 498177.700 1.050 498177.700 ug/L I Cr 52 11881.879 0.457 0.009 0.49131 3.02 ug/L 1 Cr 53 1344.113 3.067 0.002 0.81973 4.11 ug/L Mn 55 255966.120 0.647 0.512 17.11267 0.59 ug/L I Ni 60 902.055 20.516 0.002 0.37012 22.69 ug/L I Cu 63 34619.472 0.207 0.069 6.48633 1.09 ug/L L Cu 65 17179.055 0.872 0.034 6.62497 1.67 ug/L r Zn 66 2982.186 3.677 0.026 1.51534 2.23 ug/L I Zn 67 680.032 5.351 0.006 1.93152 4.75 ug/L I Zn 68 2756.779 2.032 0.025 1.92894 1.87 ug/L 1> Ge 72 98665.638 1.899 98665.638 ug/L I As 75 1157.898 6.209 0.009 0.45535 5.93 ug/L 1 Se 77 182.004 4.148 0.001 0.43402 13.54 ug/L L Se 82 252.006 8.483 0.001 0.28004 31.72 ug/L r Ag 107 189.004 2.946 -0.000 -0.03064 1.28 ug/L I> In 115 1352443.569 0.687 1352443.569 ug/L I Sb 121 581.024 2.981 0.000 0.04483 3.66 ug/L L Sb 123 453.786 5.316 0.000 0.04574 8.42 ug/L r Ba 135 40834.248 0.839 0.022 14.93692 1.54 ug/L I Ba 137 71955.408 1.573 0.039 15.03520 1.79 ug/L I Ho 165 1845369.463 1.057 -0.003 ug/L 1> Tb 159 1846406.374 1.148 1846406.374 ug/L I Tl 205 582.025 7.932 -0.000 -0.00156 110.30 ug/L L Pb 208 4878.898 4.061 0.002 0.09567 7.61 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff r Be 9 i> Se-I 45 94.632 I Cr 52 1 Cr 53 I Mn 55 I Ni 60 I Cu 63

Sample ID: AE06454 Report Date/Time: Monday, April 08, 200214:28:13 Page 1

NYC-WTC_000078348

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