Thallium lab results (potable water, 2nd run), DEP Box 59,

NYC 9/11 Public Portal Document

Method Name: TlHGAlow Element: T1 Method Description: Tlhga EPA 200.9 Date: 10/10/2001 Technique: Furnace Calibration Equation: Calc. Intercept: Linear Wavelength: 276.8 nm Slit Width: 0.70 nm Lamp Current: 6 Energy: 52 Sample Info File: Untitled Results Data Set:

Element: T1 AS Loc.: 39 Date: 10/10/2001 Sample ID: 24437 pL dispensed: 10 from 36, 5 from 37, 20 from 39 pL dispensed: 10 from 36, 5 from 37, 20 from 39

Repl SampleCdfic BlnkCorr Peak Bkgnd Time Peak # Signal Area Area Stored 1 /-0.196 i -0.001 -0.003 0.151 17:51:04 No

Element: T1 AS Loc.: 40 Date: 10/10/2001 Sample ID: 24439 pL dispensed: 10 from 36, 5 from 37, 20 from 40 pL dispensed: 10 from 36, 5 from 37, 20 from 40 Repl Saij^ielSonc BlnkCorr Peak Bkgnd Time Peak # p^L \ Signal Area Area Stored 1 r 0.45]) 0.005 0.003 0.085 17:55:27 No

Element: T1 AS Loc.: 2 Date: 10/10/2001 Sample ID: IPC pL dispensed: 10 from 36, 5 from 37, 20 from 2 pL dispensed: 10 fr<^ 36, 5 from 37, 20 from 2 Repl SarmXee^nc / BlnkCorr Peak Bkgnd Time Peak # pg/L \\\ / Signal Area Area Stored 1 / 5.332)V 0.048 0.046 0.034 17:59:37 No QC value withiy specified limits.

Element: T1 AS Loc.: 3 Date: 10/10/2001 Sample ID: CB pL dispensed: 10 from 36, 5 from 37, 20 from 3 pL dispensed: 10 from 36, 5 from 37, 20 from 3 Repl SampleConc BlnkCorr Peak Bkgnd Time Peak # Signal Area Area Stored 1 /0.112 j 0.002 0.000 0.000 18:03:46 No

Page 68

NYC-V\/TC_000065062