Tin lab results (SnF POTABLE), DEP Box 59, Sep 2001

NYC 9/11 Public Portal Document

QC value within specified limits.

Element: Sn Seq. No.: 369 AS Loc.: 2 Date: 10/02/2001 Sample ID: IPC pL dispensed: 8 from 36, 5 from 37, 12 from 2

Repl Sait^leConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L Signal Area Height Area Height Stored 1 99.13 0.170 0.170 0.434 0.038 0.056 19:07:53 No QC value wJ/thin cified limits.

Element; Sn Seq. No.: 370 AS Loc.: 3 Date: 10/02/2001 Sample ID: CB pL dispensed: 8 from 36, 5 from 37, 12 from 3

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L Signal Area Height Area Height Stored 1 -6.441 -6.441 0.000 0.000 0.003 0.015 0.011 19:10:30 No

Element: Sn Seq. No.: 371 AS Loc.: 4 Date: 10/02/2001 Sample ID: LFB pL dispensed: 8 from 36, 5 from 37, 12 from 4 Repl Sampl^onc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # /pg/L Signal Area Height Area Height Stored 1 Z196.7W 196.7 0.328 0.328 0.730 0.057 0.098 19:13:05 No QC value(withiiyfepecified limits.

Element: Sn Seq. No.: 372 AS Loc.: 5 Date: 10/02/2001 Sample ID: LRB pL dispensed: 8 from 36, 5 from 37, 12 from 5 Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # uq/L . pg/L Signal Area Height Area Height Stored 1 -5.994A -5.994 0.000 0.000 0.004 0.018 0.013 19:15:42 No

Element: Sn Seq. No.: 373 AS Loc.: 6 Date: 10/02/2001 Sample ID: 23836 pL dispensed: 8 from 36, 5 from 37, 12 from 6 Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L Signal Area Height Area Height Stored 1 -5.781- -5.781 0.001 0.001 0.005 0.023 0.020 19:18:20 No

Element: Sn Seq. No.: 374 AS Loc.: 6 Date: 10/02/2001 Sample ID: 23836 pL dispensed: 5 from 36, 5 from 37, 3 from 38, 12 from 6 Repl S a^leConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L Signal Area Height Area Height Stored 1 52.70\ 52.70 0.095 0.095 0.276 0.029 0.034 19:21:05 No Recovery 'is 105.4]

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