Lead (Pb) laboratory analysis results, Oct 2001

NYC 9/11 Public Portal Document

Element: Pb Seq. No.: 68 AS Loc.: 3 Date: 10/01/2001 'Sample ID: CB pL dispensed: 12 from 36, 5 from 37, 24 from 3 pL dispensed: 12 from 36, 5 from 37, 24 from 3

Repl Sair^^leConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L--'-^ pg/L Signal Area Height Area Height Stored 1 -0.5428 " -0.5428 -0.003 0.012 0.028 0.003 0.008 13:18:50 No

Element: Pb Seq. No.; 69 AS Loc.: 15 Date: 10/01/2001 Sample ID: 23699 pL dispensed: 12 from 36, 5 from 37, 24 from 15 pL dispensed: 12 from 36, 5 from 37, 24 from 15

Repl S,ampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L Signal Area Height Area HeJLaJxt. Stored 1 K-0.57^ -0.5726 -0.003 0.012 0.026 0.004 0.008 13:23:11 No

Element: Pb Seq. No.: 70 AS Loc.: 16 Date: 10/01/2001 San^sle ID: 23717 pL dispensed: 12 from 36, 5 from 37, 24 from 16 pL dispensed: 12 from 36, 5 from 37, 24 from 16 Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # ,^pg/L_ pg/L Signal Area Height Area Height Stored 1 -0.7964A -0.7964 -0.006 0.009 0.018 0.006 0.009 13:27:35 No

Element: Pb Seq. No.: 71 AS Loc.: 16 Date: 10/01/2001 San^le ID: 23717 pL dispensed: 5 from 37, 12 from 38, 24 from 16 pL dispensed: 5 from 37, 12 from 38, 24 from 16

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L Signal Area Height Area Height Stored 1 2.915\ 2.915 < 0.043 0.058 0.106 0.019 0.032 13:32:00 No Recovery r'6 72.9%'

Element: Pb Seq. No.: 72 AS Loc.: 17 Date: 10/01/2001 Saiqjle ID: 23718 pL dispensed: 12 from 36, 5 from 37, 24 from 17 pL dispensed: 12 from 36, 5 from 37, 24 from 17 Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # ■pg2^ir-_ pg/L Signal Area Height Area Height Stored 1 -0.635b -0.6355 -0.004 0.011 0.022 0.003 0.008 13:36:21 No

Element: Pb Seq. No.: 73 AS Loc.: 18 Date: 10/01/2001 San5>le ID: 23719 pL dispensed: 12 from 36, 5 from 37, 24 from 18 pL dispensed: 12 from 36, 5 from 37, 24 from 18 Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pgZl^:^;^ pg/L Signal Area Height Area Height Stored 1 ( 0.1828 A 0.1828 0.007 0.022 0.044 0.006 0.013 13:40:39 No

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NYC-WTC_000064485