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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: CeV CALBK Sample Date/Time: Monday, April 08, 2002 15:35:04 Sample Type: Sample Sample Description; Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\CCV CAL BK.335 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 11.667 26.186 0.000 0.00912 71.72 ug/L |> Sc-1 45 504546.639 2.305 504546.639 ug/L Cr 52 7190.581 0.739 -0.000 -0.02047 83.35 ug/L Cr 53 789.376 5.411 0.001 0.31351 16.22 ug/L I Mn 55 757.706 3.485 -0.001 -0.01951 11.25 ug/L I Ni 60 46.667 19.325 0.000 0.00170 251.90 ug/L I Cu 63 255.339 7.698 0.000 0.00420 62.03 ug/L L Cu 65 140.669 6.129 0.000 0.00348 92.26 ug/L r Zn 66 466.683 3.930 0.001 0.04892 22.64 ug/L I Zn 67 115.335 11.283 0.000 0.07833 57.04 ug/L I Zn 68 362.344 4.487 0.001 0.04613 28.86 ug/L i> Ge 72 95411.015 0.059 95411.015 ug/L I As 75 237.467 15.696 -0.000 -0.00128 1517.33 ug/L I Se 77 117.669 5.785 0.000 0.07091 60.23 ug/L L Se 82 191.004 5.663 0.000 0.03831 129.28 ug/L r Ag 107 145.336 14.439 -0.000 -0.03468 5.53 ug/L i> In 115 1359629.376 1.072 1359629.376 ug/L Sb 121 100.668 12.927 -0.000 -0.00738 17.47 ug/L L Sb 123 71.190 25.660 -0.000 -0.00831 29.76 ug/L r Ba 135 58.334 14.780 0.000 0.00055 595.32 ug/L I Ba 137 104.668 10.739 0.000 0.00143 153.91 ug/L I Ho 165 1846352.831 2.529 -0.014 ug/L i> Tb 159 1867152.424 0.772 1867152.424 ug/L r Tl 205 503.352 5.749 -0.000 -0.00492 25.19 ug/L L Pb 208 1946.434 2.602 0.000 0.00800 13.24 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff r Be 9 1> Sol 45 95.842 I Cr 52 I Cr 53 I Mn 55 I Ni 60 I Cu 63

Sample ID: Cev CALBK Report Date/Time: Monday, April 08, 2002 15:37:15 Page 1

NYC-WTC_000078390

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