Selenium lab results, WTC samples, Sep 21 2001

NYC 9/11 Public Portal Document aaS^StS888S=S&SBS3BSa8ZSS5S3SSBSSSSCB8SSSSSSBBSSBBSSSBB= SSSa8XS3SSSSS:S3SSSBBSB:SSSSSSSSSBSS:SSSSBSa±S8B8Sas8SCS8888SSSB

Element: Se Seq. No.: 38 AS Loc.: 22 Date: 09/21/2001 Sample ID: 23025 gL dispensed: 10 from 36, 5 from 37, 20 from 22 dispensed: 10 from 36, 5 from 37, 20 from 22

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # Mg/ir>^ gg/L Signal Area Height Area Height Stored 1 Co76721 S 0.6721 0.005 0.006 0.012 0.056 0..029 12:33:14 No

B8BB8a8B88S8SBBB8888B8B88BSB8BB8aB8aB8B88B8aa8BBB8SBB8SBBB88SBa88B88BB888aaaBB88B88BB8B Element: Se Seq. No.: 39 AS Loc.: 23 Date: 09/21/2001 San?)le ID; 23079 liZ dispensed: 10 from 36, 5 from 37, 20 from 23 IjlIj dispensed: 10 from 36, 5 from 37, 20 from 23

Repl SampleCpnc_ StndConc BlnkCorr Peak Peak Bkgnd Bkgnd .-«Iime Peak # /tg/h Signal Area Height Area Height Stored 1 0.02 0.0279 -0.001 0.000 0.009 0.034 0.016 12:37:26 No

bbb: t8aBaaaa8aaBBB8aa88a88B8B8asa8BBaBBBa8BB88BssBa8a8BBBBaaa8BB8aaBsaBaBBB8BBasBS88 Element: Se Seq. No.: 40 AS Loc.: 24 Date: 09/21/2001 Sait^jle ID: 23080 /zL dispensed: 10 from 36, 5 from 37, 20 from 24 /zL dispensed: 10 from 36, 5 from 37, 20 from 24

Repl SanqoleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # /tg/L Signal Area Height Area Height Stored 1 0.62 0.6259 0.004 0.005 0.008 0.030 0.014 12:41:41 No

Element: Se Seq. No.: 41 AS Loc.: 25 Date: 09/21/2001 Sample ID; 23081 fili dispensed: 10 from 36, 5 from 37, 20 from 25 dispensed; 10 from 36, 5 from 37, 20 from 25

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # gg/h gg/L Signal Area Height Area Height Stored 1 -0.3' -0.3106 -0.003 -0.002 0.008 0.033 0.015 12:46:00 No

Element: Se Seq. No.: 42 AS IiOC.: 26 Date: 09/21/2001 San^le ID: 23082 fJLlj dispensed: 10 from 36, 5 from 37, 20 from 26 dispensed: 10 from 36, 5 from 37, 20 from 26

Repl San^leConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # i^a/^. Mg/h Signal Area Height Area Height Stored 1 Co.2620 \ 0.2620 0.001 0.002 0.010 0.030 0.014 12:50:21 No

Element: Se Seq. No.: 43 AS Loc.: 26 Date: 09/21/2001 Sample ID; 23082 IJlIj dispensed: 5 from 37, 20 from 26, 10 from 38 filj dispensed: 5 from 37, 20 from 26, 10 from 38

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # Signal Area Height Area Height Stored 1 ^ 4.794 X 4.794 0.037 0.038 0.066 0.039 0.026 12:54:33 No Recovery\4;S 90.6% \

Page 10

NYC-WTC_000065266