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Lead in potable water lab report sample list, Sept 2001

Machine-extracted title · confidence 90%

Laboratory report listing sample IDs and quality control checks for lead analysis in potable water.

NYC-WTC_000064436–000064456

Folder label: “Pb

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NYC 9/11 Public Portal Document ;ssssssssss8SzsaBS8SSBssassssssss:s5SssssssssBas8ssssssssss=:=:

Element: Pb Seq. No.: 21 AS LOC.: 38 Date: 09/24/2001 San^jle ID: S8 Uh dispensed: 12 from 36, 5 from 37, 24 from 38 fih dispensed: 12 from 36, 5 from 37, 24 from 38

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # fig/h ng/h Signal Area Height Area Height Stored 1 0.113 0.125 0.211 0.040 0.067 09:51:08 No The calibration curve may not be linear. Standard number 4 applied. [8] Correlation Coefficient: 0.9982 Slope: 0.0138

Pb 0.15 T

0.10 -

8 g €o 0.05- <

r T T T T I -2 0 2 4 6 8 10 Concentration

Calibration data for Pb Entered Calculated Mean Signal Concentration Concentration Standard Standard ID (Pk Area) Deviation %RSD Calib Blank 0.000 -0.2660 SI 0.018 1 1.072 S2 0.035 2 2.233 S4 0.060 4 4.057 S8 0. 3 8 7.904 Correlation Coefficient 0.99822 Slope: 0.01381 Intercept: 0.004

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NYC-WTC_000064443

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NYC-WTC_000064443Source: NYC Law Department, mirrored locally

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