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Water sample metal analysis results, April 15, 2002

Machine-extracted title · confidence 95%

Summary report of water sample analysis using Method 200.8 showing measured intensities and concentrations for various metals.

NYC-WTC_000040700–000040753

Folder label: “ICPMS 4/15/02

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NYC 9/11 Public Portal Document

607377 - A£05tt WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: Blank Sample Date/TIme: Monday, April 15, 2002 12:40:14 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NYC.mth Dataset File: d:\elandata\Dataset\new york city\Blank.519 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 Be 9 7.333 55.111 ug/L > Se-1 45 542528.494 2.339 ug/L Cr 52 7748.045 1.868 ug/L Cr 53 573.357 0.992 ug/L Mn 55 798.043 2.757 ug/L Ni 60 67.668 38.885 ug/L Cu 63 303.675 8.450 ug/L Cu 65 161.670 3.051 ug/L Zn 66 543.688 8.832 ug/L Zn 67 119.002 4.202 ug/L Zn 68 453.016 6.356 ug/L > Ge As Se Se 72 75 77 82 99473.588 0.317 3.317 102.335 0.213 9862.397 958.414 2.459 45/1 Reviewed by, ug/L ug/L ug/L ug/L Ag 107 2815.466 8.479 ug/L Cd 111 997.979 1.658 ug/L Cd 114 94.487 21.381 ug/L > In 115 1372960.919 1.756 ug/L Sb 121 560.357 22.486 ug/L Sb 123 455.126 18.725 ug/L Ba 135 64.668 7.783 ug/L Ba 137 108.668 14.385 ug/L > Tb 159 1829548.559 0.780 ug/L Ho 165 1906930.862 1.282 ug/L Tl 205 1376.452 7.079 ug/L Pb 208 1800.421 4.365 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 > Sc-1 45 Cr 52 Cr 53 Mn 55

Sample ID: Blank Report Date/TIme: Monday, April 15, 200212:42:01 Page 1

NYC-WTC_000040700

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NYC-WTC_000040700Source: NYC Law Department, mirrored locally

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