Sample batch list with IDs, April 12, 2002

NYC 9/11 Public Portal Document

. Element: Sn Seq. No.: 115 AS Loc.: 27 Date: 04/12/2002 - Sampl'e ID: 8757dup uL dispensed: 16 from 36, 5 from 37, 4 from 27

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # ug/L ug/L Signal Area Height Area Height Stored 1 -11.89 -3.964 0.001 0.001 0.006 0.020 0.027 16:28:33 No

Element: Sn Seq. No.: 116 AS Loc.: 27 Date: 04/12/2002 Sample ID: 8757dup uL dispensed: 13 from 36, 5 from 37, 3 from 38, 4 from 27

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # ug/L ug/L Signal Area Height Area Height Stored 1 125.6 41.88 0.054 0.055 0.117 0.031 0.041 16:31:20 No

Element: Sn Seq. No.: 117 AS Loc.: 28 Date: 04/12/2002 Sample ID: 8759 uL dispensed: 8 from 36, 5 from 37, 12 from 28

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # ug/L ug/L Signal Area Height Area Height Stored 1 -1.672 -1.672 0.003 0.004 0.007 0.018 0.028 16:34:05 No

Element: Sn Seq. No.: 118 AS Loc.: 29 Date: 04/12/2002 Sample ID: 8760 uL dispensed: 8 from 36, 5 from 37, 12 from 29

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # ug/L ug/L Signal Area Height Area Height Stored 1 -3.269 -3.269 0.002 0.002 0.007 0.020 0.030 16:36:49 No

Element: Sn Seq. No.: 119 AS Loc.: 30 Date: 04/12/2002 Sample ID: 8761 uL dispensed: 8 from 36, 5 from 37, 12 from 30

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # ug/L ug/L Signal Area Height Area Height Stored 1 -5.962 -5.962 -0.002 -0.001 0.007 0.028 0.032 16:39:35 No

Element: Sn Seq. No.: 120 AS Loc.: 4 Date: 04/12/2002 Sample ID: LFB uL dispensed: 8 from 36, 5 from 37, 12 from 4

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # ug/L ug/L Signal Area Height Area Height Stored 1 186.5 / 186.5 0.223 0.224 0.447 0.057 0.102 16:42:14 No QC value within specified limits.

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NYC-WTC_000041279