Lead in potable water lab report sample list, Sept 2001

NYC 9/11 Public Portal Document

Element: Pb Seq. No.: 5 AS Loc.: 38 Date: 10/09/2001 Sample ID: S4 pL dispensed: 24 from 36, 5 from 37, 12 from 38 pL dispensed: 24 from 36, 5 from 37, 12 from 38

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L Signal Area Height Area Height Stored 1 0.073 0.086 0.119 0.030 0.039 09:04:20 No Standard number 3 applied. [4] Correlation Coefficient: 0.9963 Slope: 0.0179

Element: Pb Seq. No.: 6 AS Loc.: 38 Date: 10/09/2001 Sample ID: S8 pL dispensed: 12 from 36, 5 from 37, 24 from 38 pL dispensed: 12 from 36, 5 from 37, 24 from 38

Repl SampleConc StndConc BlnkCorr Peak Peak Bkgnd Bkgnd Time Peak # pg/L pg/L signal Area Height Area Height Stored 1 0.142 0.155 0.209 0.051 0.071 09:08:39 No The calibration curve may not be linear. Standard number 4 applied. [8] Correlation Coefficient: 0.^990 Slope: 0.0174

Pb 0.15-?

0.10- 0) g

I < 0.05-

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

Concentration

Calibration data for Pb Entered Calculated Mean Signal Concentration Concentration Standard Standard ID (Pk Area) (pg/L) (pg/L) Deviation %RSD Calib Blank 0.000 -0.2052 SI 0.023 1 1.127 S2 0.041 2 2.136 S4 0.073 4 3.983 S8 8 7.958 Correlation Coefficie:in£70?T9901 Slope: 0.01743 Intercept: 0.004

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