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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: AE06451 Sample Date/Time: Monday, April 08, 2002 14:18:07 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE06451.311 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 10.000 45.826 0.000 0.00506 205.98 ug/L i> Se-I 45 511409.518 0.269 511409.518 ug/L I Cr 52 8372.271 1.596 0.002 0.09234 17.23 ug/L I Cr 53 1191.757 7.008 0.001 0.65527 11.04 ug/L I Mn 55 436321.542 0.670 0.851 28.46119 0.93 ug/L I Ni 60 1141.416 2.345 0.002 0.45975 2.68 ug/L I Cu 63 36733.124 2.390 0.071 6.70550 2.63 ug/L L Cu 65 17974.599 0.497 0.035 6.75267 0.23 ug/L r Zn 66 6329.266 1.175 0.059 3.41414 1.40 ug/L I 2n 67 1206.093 9.843 0.011 3.59927 10.01 ug/L Zn 68 5132.500 1.352 0.048 3.73491 2.08 ug/L i> Ge 72 100443.859 0.647 100443.859 ug/L I As 75 1141.819 1.833 0.009 0.43740 1.87 ug/L Se 77 187.337 4.602 0.001 0.44577 12.70 ug/L L Se 82 241.339 2.086 0.000 0.21401 12.82 ug/L r Ag 107 348.010 6.794 -0.000 -0.01725 12.44 ug/L l> In 115 1400807.938 0.416 1400807.938 ug/L I Sb 121 869.384 2.879 0.000 0.07288 3.73 ug/L L Sb 123 681.682 8.044 0.000 0.07455 10.20 ug/L r Ba 135 48539.067 1.208 0.025 17.00984 1.09 ug/L I Ba 137 85184.791 1.121 0.044 17.05262 1.03 ug/L I Ho 165 1923312.969 1.279 -0.005 ug/L |> Tb 159 1927456.072 0.548 1927456.072 ug/L 1 Tl 205 705.035 8.845 0.000 0.00218 102.57 ug/L L Pb 208 9031.839 3.329 0.004 0.20751 3.43 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff r Be 9 i> Sc-1 45 97.146 Cr 52 Cr 53 Mn 55 Ni 60 I Cu 63

Sample ID: AE06451 Report Date/Time: Monday, April 08,2002 14:19:41 Page 1

NYC-WTC_000078342

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