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Thallium lab results (potable water), DEP Box 59, Oct-Nov 2001

Machine-extracted title · confidence 90%

Laboratory report listing sample IDs and analyst details for potable water thallium testing in October and November 2001.

NYC-WTC_000065037–000065049

Folder label: “Thallium

Page image
Scanned page image, NYC-WTC_000065039
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

Element: T1 AS Loc.: 38 Date: 10/10/2001 Sample ID: S8 pL dispensed: 14 from 36, 5 from 37, 16 from 38 pL dispensed: 14 from 36, 5 from 37, 16 from 38

Repl SampleConc BlnkCorr Peak Bkgnd Time Peak # pg/L Signal Area Area Stored 1 0.069 0.067 0.058 09:57:21 No Standard number 4 applied. [8] Correlation Coefficient: 0.9979 Slope: 0.0088

Element: Tl AS Loc.: 38 Date: 10/10/2001 Sample ID: SIO pL dispensed: 10 from 36, 5 from 37, 20 from 38 pL dispensed: 10 from 36, 5 from 37, 20 from 38

Repl SampleConc BlnkCorr Peak Bkgnd Time Peak # pg/L Signal Area Area Stored 1 0.076 0.073 0.071 10:01:41 No The calibration curve may not be lin^r. Standard number 5 applied. [10] v / Correlation Coefficient: 0.9888 Slope: 0.0079

Tl 0.08 -r a

0.06 - □

0.04 -

o 0.02 -

r I I -5 0 5 10 15

Concentration

Calibration data for Tl Entered Calculated Mean Signal Concentration Concentration Standard standard ID (Pk Area) (pg/L) (pg/L) Deviation %RSD Calib Blank 0.000 -0.453 S2 0.018 2 1.859 S4 0.038 4 4.385 S6 0.056 6 6.654 S8 0.069 8 8.366 SIO 0.076 10 9.189 Correlation Coefficient: 0.98882 ope: 0.00785 Intercept: 0.004

The calibration curve has been edited.

Page 44

NYC-WTC_000065039

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NYC-WTC_000065039Source: NYC Law Department, mirrored locally

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