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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: AE06759 Sample DateZTIme: Monday, April 08, 2002 15:04:52 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE06759.326 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 11.333 26.956 0.000 0.00828 82.16 ug/L |> Sc-1 45 506777.087 0.826 506777.087 ug/L I Cr 52 8621.172 0.563 0.002 0.12650 1.90 ug/L I Cr 53 1221.428 0.898 0.002 0.69111 2.68 ug/L I Mn 55 236729.933 2.863 0.465 15.55075 2.59 ug/L I Ni 60 844.381 0.652 0.002 0.33863 1.54 ug/L Cu 63 34008.536 2.936 0.067 6.26304 3.74 ug/L L Cu 65 16905.209 1.624 0.033 6.40710 2.27 ug/L r Zn 66 4003.588 1.376 0.036 2.07645 0.58 ug/L 1 Zn 67 843.048 5.133 0.007 2.42469 4.81 ug/L I Zn 68 3582.075 0.880 0.033 2.53466 1.05 ug/L i> Ge 72 100312.094 0.882 100312.094 ug/L I As 75 1117.140 1.626 0.009 0.42599 1.66 ug/L I Se 77 192.337 15.330 0.001 0.47634 35.99 ug/L L Se 82 244.339 5.279 0.001 0.22833 23.49 ug/L r Ag 107 734.371 9.986 0.000 0.01793 36.88 ug/L |> In 115 1374829.304 0.087 1374829.304 ug/L I Sb 121 806.044 2.862 0.000 0.06783 3.52 ug/L L Sb 123 610.258 4.661 0.000 0.06638 5.84 ug/L r Ba 135 41221.662 0.881 0.022 14.93410 0.95 ug/L I Ba 137 71548.168 0.573 0.038 14.80690 0.55 ug/L I Ho 165 1863196.802 0.248 -0.003 ug/L i> Tb 159 1864096.999 0.133 1864096.999 ug/L 1 Tl 205 522.687 4.864 -0.000 -0.00412 25.11 ug/L L Pb 208 10588.845 0.936 0.005 0.26201 1.26 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 96.266 I Cr 52 1 Cr 53 I Mn 55 I Ni 60 I Cu 63

Sample ID: AE06759 Report Date/Time: Monday, April 08, 2002 15:06:26 Page 1

NYC-WTC_000078372

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