Titanium lab results, DEP Box 59, Sep 2001

NYC 9/11 Public Portal Document

* Element: Ti Seq. No.: 244 AS Loc.: 25 Date: 10/02/2001 San?>le ID: 23359 pL dispensed: 10 from 36, 20 from 25 Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L_-^ pg/L Signal Area Height Area Height Stored 1 X<755 J -7.755 -0.001 0.002 0.006 0.001 0.004 12:37:19 No

Element: TTI Seq. No.: 245 AS Loc.: 26 Date: 10/02/2001 Sample ID: 23360 pL dispensed: 10 from 36, 20 from 26

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # PJ pg/L Signal Area Height Area Height Stored 1 -7.736 -7.736 -0.001 0.002 0.006 -0.001 0.005 12:40:03 No

Element: Ti Seq. No.: 246 AS Loc.: 26 Date: 10/02/2001 Sample ID: 23360 pL dispensed: 5 from 36, 5 from 38, 20 from 26 Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pq/ir"^ pg/L Signal Area Height Area Height Stored 1 ( 44.70\ 44.70 0.054 0.057 0.050 0.002 0.004 12:42:52 No RecoveryVis 89.4

Element: Ti Mseq. No.: 247 AS Loc.: 27 Date: 10/02/2001 Sample ID: 23460DUP • pL dispensed: 10 from 36, 20 from 27 Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L Signal Area Height Area Height Stored 1 -8.268 -8.268 -0.001 0.002 0.006 0.002 0.005 12:45:37 No

Element: Ti Seq. No.: 248 AS Loc.: 28 Date: 10/02/2001 Sample ID: 23471 pL dispensed: 10 from 36, 20 from 28 Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/i"^, pg/L Signal Area Height Area Height Stored 1 /-8.821) -8.821 -0.002 0.001 0.006 -0.002 0.004 12:48:24 No

Element; Ti Seq. No.: 249 AS Loc.: 29 Date: 10/02/2001 Sample ID: 23472 pL dispensed: 10 from 36, 20 from 29 Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/c''-'^ pg/L Signal Area Height Area Height Stored 1 7-11.43 J -11.43 -0.005 -0.002 0.004 0.000 0.004 12:51:12 No

Page 27

NYC-WTC_000064976