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Water sample metal analysis results, April 22, 2002

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

NYC-WTC_000040925–000040974

Folder label: “ICPMS 4/22/02

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: ICV STD2 60 AND 5 PPB Sample Date/Time: Monday, April 22,2002 14:20:16 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\ICV STD2 60 AND 5 PPB.522 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 22953.507 1.423 0.047 60.01021 0.67 ug/L > Se-1 45 490817.932 1.618 490817.932 ug/L Cr 52 543977.688 1.180 1.093 60.31606 2.74 ug/L Cr 53 64190.803 0.390 0.130 60.25497 1.34 ug/L Mn 55 845863.450 1.914 1.722 60.14895 3.22 ug/L Ni 60 130721.241 1.525 0.266 59.30188 3.14 ug/L Cu 63 295073.478 2.310 0.601 59.24038 3.77 ug/L Cu 65 147942.444 1.761 0.301 59.80079 3.30 ug/L Zn 66 95982.569 2.720 1.020 59.40911 1.72 ug/L Zn 67 17307.299 0.728 0.184 59.11434 0.50 ug/L Zn 68 71309.635 0.543 0.758 59.37732 1.38 ug/L > Ge 72 93473.732 1.116 93473.732 ug/L As 75 112471.550 1.163 1.203 60.37514 0.88 ug/L Se 77 10489.857 1.274 0.111 60.48159 1.58 ug/L Se 82 12345.500 0.382 0.131 58.89943 1.48 ug/L Ag 107 595313.440 1.219 0.464 59.30569 0.45 ug/L > In 115 1278265.991 0.877 1278265.991 ug/L Sb 121 508496.413 0.939 0.398 59.78964 0.69 ug/L Sb 123 392495.856 0.378 0.307 59.58600 1.21 ug/L Ba 135 153892.205 0.819 0.089 59.71968 0.32 ug/L Ba 137 267749.027 0.271 0.154 59.71146 0.25 ug/L Ho 165 1724964.502 0.689 0.002 ug/L Tb 159 1736553.162 0.512 1736553.162 ug/L Hg 201 5602.782 0.297 0.003 4.97814 0.82 ug/L Hg 202 12703.330 0.904 0.007 4.97824 0.40 ug/L T1 205 1406339.224 0.975 0.809 59.76291 1.24 ug/L Pb 208 1911188.178 1.111 1.099 60.02473 1.08 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 > Sc-1 45 100.385 Cr 52 Cr 53 Mn 55

Sample ID: ICV STD2 60 AND 5 PPB Report Date/Time: Monday, April 22,2002 14:22:24 Page 1

NYC-WTC_000040935

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