Laboratory sample list, DEP Box 24, May 15, 2002

NYC 9/11 Public Portal Document

Element: Sn Seq. No.: 47 AS Loc.: 26 Date: 05/15/2002 Sample ID: 11283 uL dispensed: 16 from 36, 5 from 37, 4 from 26 Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L Signal Area Height Area Height Stored 1 -14.69 -4.895 -0.003 -0.001 0.008 0.011 0.028 12:42:57 No

Element: Sn Seq. No.: 48 AS Loc.: 26 Date: 05/15/2002 Sample ID: 11283 uL dispensed: 13 from 36, 5 from 37, 3 from 38, 4 from 26 Repl SampleConc .StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # ug/L Jug/L Signal Area Height Area Height Stored 1 112.1 N 37.36 0.054 0.056 0.120 0.019 0.036 12:45:44 No Recovery is 74.7% (outside of specified limits)

Element: Sn Seq. No.: 49 AS Loc.: 2 Date: 05/15/2002 Sample ID: IPC uL dispensed: 8 from 36, 5 from 37, 12 from 2 Repl SampleConc I StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L I pg/L Signal Area Height Area Height Stored 1 100.6 100.6 0.140 0.142 0.315 0.031 0.055 12:48:23 No QC value within specified limits.

Element: Sn Seq. No.: 50 AS Loc.: 3 Date: 05/15/2002 Sample ID: CB uL dispensed: 8 from 36, 5 from 37, 12 from 3 Repl SampleConc / StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L / pg/L Signal Area Height Area Height Stored 1 -3.495 . -3.495 -0.001 0.001 0.008 0.010 0.029 12:50:59 No

Element: Sn Seq. No.: 51 AS Loc.: 27 Date: 05/15/2002 Sample ID: 11283dup uL dispensed: 8 from 36, 5 from 37, 12 from 27 Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L Signal Area Height Area Height Stored 1 -4.270 -4.270 -0.002 0.000 0.008 0.013 0.026 12:53:38 No

Element: Sn Seq. No.: 52 AS Loc.: 27 Date: 05/15/2002 Sample ID: 11283dup uL dispensed: 5 from 36, 5 from 37, 3 from 38, 12 from 27 Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # 1 ug/L 33.09 pg/L X 33.09 Signal 0.049 Area 0.051 Height 0.100 Area 0.021 Height Stored 0.033 12:56:25 No Recovery is 66.2% (cutside of specified limits)

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