Selenium (Se) laboratory analysis results, Oct 2001

NYC 9/11 Public Portal Document

Element: Se Seq. No.: 80 AS Loc.: 38 Date: 10/05/2001 Sample ID: S6 Illi 'dispensed: 18 from 36, 5 from 37, 12 from 38 Illi dispensed: 18 from 36, 5 from 37, 12 from 38

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # iig/li iig/li Signal Area Height Area Height Stored 1 0.050 0.049 0.086 0.037 0.032 14:06:43 No Standard number 3 applied. [6] Correlation Coefficient: 0.9961 Slope: 0.0076 The calibration curve has been edited.

ssss8sss&=a8sssssss:ssasa3ssssss=a=s3S3sasssssssBssssss8S8ss=SB&ss&ssssssB=asssBssBBBB&sssaaassa=sssss=&sss3ss8B:s»s:s8s

Element: Se Seq. No.: 81 AS Loc.: 38 Date; 10/05/2001 Sample ID: S2 Illi dispensed: 26 from 36, 5 from 37, 4 from 38 Illi dispensed:-?6—from 36, 5 from 37, 4 from 38

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # lig/li Signal Area Height Area Height Stored 1 .019 ^017 0.040 0.031 0.020 14:12:45 No Standard number 1 applied. [2] / Correlation Coefficient: .9980 Slope: 0.0077

r8BSBB8S8BBSS888S8BSB8BSSSS88BB888888BBSSSS8BBB8BS8BB8SB

Element: Se Seq. No.: 82 AS Loc.: 1 Date; 10/05/2001 Sample ID: QCS Illi dispensed: 10 from 36, 5 from 37, 20 from 1 jili dispensed: 10 from 36, 5 from 37, 20 from 1

Repl Sai ipleConc I StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # Mgr 5,15o\\J pg/h Signal Area Height Area Height Stored 1 5.150 0.042 0.041 0.079 0.034 0.028 14:17:09 No QC value\within/specified limits.

BBSBSBBBBBK :BBaS8BaaaBa8B8BaBa8BBBaS8aBSBaB8SSBaBS88S8B88S8a8Bsaa8aB88a8aBBBBa8BBBBB8a

Element: Se Seq. No.: 83 AS Loc.: 2 Date: 10/05/2001 Sanqple ID: IPC Illi dispensed: 10 from 36, 5 from 37, 20 from 2 lih dispensed: 10 from 36, 5 from 37, 20 from 2

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak Mg?!* Signal Area Height Area Height Stored 4.452 4.452 0.037 0.035 0.072 0.034 0.030 14:21:23 No out of limit®. QC will be repeated based on Retry setting.

Element: Se Seq. No.: 84 AS Loc.: 2 Date: 10/05/2001 Sample ID: IPC Illi dispensed: 10 from 36, 5 from 37, 20 from 2 Illi dispensed: 10 from 36, 5 from 37, 20 from 2

Repl ISampleConc , StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak pgA—/ gg/L Signal Area Height Area Height Stored 1 4.990 0.041 0.040 0.074 0.034 0.025 14:25:36 No QC valuitel within/ lecified limits.

Page 5

NYC-WTC_000065334