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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: AE06851 Sample Date/Time: Monday, April 08,2002 15:16:14 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\AE06851.330 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 9.333 34.442 0.000 0.00400 181.30 ug/L 1> Sc-1 45 499734.401 1.362 499734.401 ug/L I Cr 52 8883.429 2.457 0.003 0.16720 8.29 ug/L 1 Cr 53 1330.444 1.698 0.002 0.80385 2.75 ug/L Mn 55 241403.269 0.656 0.481 16.08572 1.24 ug/L I Ni 60 809.044 4.390 0.002 0.32856 5.10 ug/L I Cu 63 5127.497 0.295 0.010 0.92082 1.29 ug/L L Cu 65 2467.359 0.976 0.005 0.90539 2.46 ug/L r Zn 66 2257.303 3.401 0.018 1.07047 4.75 ug/L I Zn 67 580.358 3.824 0.005 1.57404 5.46 ug/L I Zn 68 2235.964 1.535 0.019 1.49056 2.38 ug/L i> Ge 72 100180.982 0.709 100180.982 ug/L 1 As 75 1204.218 3.809 0.010 0.46978 5.66 ug/L I Se 77 195.337 9.019 0.001 0.49636 22.69 ug/L L Se 82 260.673 3.937 0.001 0.30114 13.74 ug/L r Ag 107 214.671 10.263 -0.000 -0.02853 8.22 ug/L i> In 115 1370722.476 1.975 1370722.476 ug/L I Sb 121 551.689 5.311 0.000 0.04089 9.74 ug/L L Sb 123 409.318 3.381 0.000 0.03868 4.84 ug/L r Ba 135 41434.290 0.417 0.022 15.20168 0.70 ug/L Ba 137 72006.785 1.010 0.039 15.09096 1.06 ug/L Ho 165 1825974.849 0.807 -0.011 ug/L l> Tb 159 1840824.368 0.794 1840824.368 ug/L I Tl 205 471.684 8.938 -0.000 -0.00591 27.34 ug/L L Pb 208 3295.602 2.316 0.001 0.04897 6.14 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff r Be 9 1> Sc-1 45 94.928 Cr 52 1 Cr 53 1 Mn 55 Ni 60 I Cu 63

Sample ID: AE06851 Report Date/Time: Monday, April 08, 2002 15:17:49 Page 1

NYC-WTC_000078380

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