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← Document results/DEP Box 63/20 April 4, 2002 NEWQ AE05965 - AE06336
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Water metal analysis results, April 4, 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 4, 2002.

NYC-WTC_000078151–000078232

Folder label: “20 April 4, 2002 NEWQ AE05965 - AE06336”

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID: LFB 50 PPB Sample Date/TIme: Thursday, April 04, 2002 15:08:18 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\LFB 50 PPB.240 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 22331.323 4.646 0.045 50.25482 1.07 ug/L |> Sc-1 45 490872.217 3.880 490872.217 ug/L Cr 52 472334.056 3.564 0.949 49.76303 7.38 ug/L I Cr 53 54914.713 3.565 0.111 47.93698 6.39 ug/L I Mn 55 710469.460 4.202 1.448 45.48107 7.86 ug/L I Ni 60 108972.240 3.722 0.222 44.62533 5.55 ug/L I Cu 63 244523.258 2.465 0.498 43.34970 1.68 ug/L L Cu 65 120664.329 2.327 0.246 43.27893 2.07 ug/L r ZnZn 66 85216.118 3.910 0.902 49.54521 5.06 ug/L 1 67 14788.847 4.114 0.156 49.28082 3.23 ug/L I Zn 68 64991.945 3.035 0.688 52.63246 3.61 ug/L |> Ge 72 94009.599 1.633 94009.599 ug/L 1 As 75 95926.832 0.623 1.018 48.65947 2.12 ug/L I Se 77 8249.170 7.191 0.087 50.14628 8.92 ug/L L Se 82 10640.335 3.654 0.112 45.71833 5.33 ug/L r Ag 107 496166.965 1.729 0.394 48.76138 0.98 ug/L I: In 115 1256623.539 1.534 1256623.539 ug/L I Sb 121 436368.931 2.991 0.347 52.09378 1.93 ug/L L Sb 123 343195.819 3.151 0.273 53.83241 2.11 ug/L r Ba 135 134283.787 2.120 0.078 53.73055 1.24 ug/L I Ba 137 228724.523 2.711 0.133 51.47397 2.05 ug/L |> Ho 165 1721273.340 1.248 1721273.340 ug/L I Tl 205 1167908.390 2.970 0.678 50.22574 4.16 ug/L L Pb 208 1593965.066 2.409 0.925 51.27577 3.35 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff r Se-I Be 9 i> 45 95.267 Cr 52 Cr 53 I Mn 55 I Ni 60 1 Cu 63 L Cu 65

Sample ID: LFB 50PPB Report Date/TIme: Thursday, April 04, 2002 15:10:40 Page 1

NYC-WTC_000078231

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