Arsenic in potable water lab report sample list, Sept 2001

NYC 9/11 Public Portal Document

Element: As AS .C.: 38 Date: 09/20/2001 San^le ID: S40 / gli dispensed: 10 :from 36, 5 from 37, 20 from 38

Repl San^leConc StndConc BlnkCorr Peak Bkgnd TimePeak # ^tg/L /fg/L Signal Area Area Stored 1 0.213 0.210 0.034 10:05:34 No The calibration curve may not be linear. Standard number 4 applied. [40] Correlation Coefficient: 0.9992 Slope: 0.0053

As 0.3-7

0.2“ 8 I o

0.1 ~

I I T “I -10 0 10 20 30 40 50

Concentration

Calibration data for As Entered Calculated Mean Signal Concentration Concentration Standard standard ID (Pk Area) (gg/L) (/ig/L) Deviation %RSD Calib Blank 0.000 -0.614 SIO 0.060 10 10.72 S20 0.109 20 19.84 S30 0.166 30 30.61 S40 40 39.44 Correlation Coefficient:! 0.99919 lope: 0.00532 Intercept: 0.003

Element: As AS hoc.: 1 Date: 09/20/2001 San^jle ID: qcs lih dispensed: 10 from 36, 5 from 37, 20 from 1

Repl Samp]j LC StndConc BlnkCorr Peak Bkgnd TimePeak # /ig. Mg/i* Signal Area Area Stored 1 9.373 9.373 0.053 0.050 0.021 10:08:37 No QC value Ithin icified limits.

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