Sample sheet, WTC site, Nov 23 2001

NYC 9/11 Public Portal Document sssbbbbbsbsssbbsbsssbssbsbbbsssbbbbsbbssbbsbbbbssssssb

• Element • : Se Seq. No.: 49 AS Loc.: 3 Date: 11/23/2001 San^ile ID: CB fill dispensed: 10 from 36, 5 from 37, 20 from 3 fih dispensed: 10 from 36, 5 from 37, 20 from 3

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # #tg/h Signal Area Height Area Height Stored 1 0.7265 / 0.7265 0.007 0.005 0.012 0.026 0.017 13:56:28 No

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Element: Se Seq. No.: 50 AS Loc.: 4 Date: 11/23/2001 Sample ID: LFB Illa dispensed: 10 from 36, 5 from 37, 20 from 4 lilj dispensed: 10 from 36, 5 from 37, 20 from 4

Repl San^leConci StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # Mg/i* / Mg/h Signal Area Height Area Height Stored 1 9.794 Y 9.794 0.072 0.070 0.141 0.048 0.048 14:00:40 No QC value within specified limits.

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Element: Se Seq. No.: 51 AS Loc.: 5 Date: 11/23/2001 Sample ID: LRB gL dispensed: 10 from 36, 5 from 37, 20 from 5 Illi dispensed: 10 from 36, 5 from 37, 20 from 5

Repl San^leConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # Mg/h / gg/L Signal Area Height Area Height Stored 1 0.2405 J 0.2405 0.003 0.002 0.008 0.028 0.018 14:04:54 No

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Element: Se Seq. No.: 52 AS Loc.: 32 Date: 11/23/2001 Sample ID: 26776 gL dispensed: 10 from 36, 5 from 37, 20 from 32 IJLli dispensed: 10 from 36, 5 from 37, 20 from 32

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # Mg/L /ig/L Signal Area Height Area Height Stored 1 0.9969 0.9969 0.009 0.007 0.013 0.041 0.020 14:09:20 No

Element: Se Seq. No.; 53 AS Loc.: 33 Date: 11/23/2001 San^jle ID: 26778 fj.1, dispensed: 10 from 36, 5 from 37, 20 from 33 dispensed: 10 from 36, 5 from 37, 20 from 33

Repl Satt^jleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # Mg/h Mg/h Signal Area Height Area Height Stored 1 0.5523 0.5523 0.006 0.004 0.011 0.044 0.021 14:13:43 No

:ss:=bssss;bs:ssssssssssss=ss: Element; Se Seq. No.: 54 AS Loc.: 34 Date: 11/23/2001 Sample ID: 26780 gL dispensed: 10 from 36, 5 from 37, 20 from 34 gL dispensed: 10 from 36, 5 from 37, 20 from 34

Repl San^leConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # /tg/L Mg/L Signal Area Height Area Height Stored 1 0.4223 0.4223 0.005 0.003 0.011 0.038 0.019 14:18:04 No

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NYC-WTC_000065749