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Method 200.8 ICP-MS lab results, NEWE samples, Jan 11, 2002

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ICP-MS analysis of water samples using Method 200.8 with elemental measurements (Be, Sc, Mn, In, Sb, Ho) and quality control replicates performed on January 11, 2002.

NYC-WTC_000085478–000085537

Folder label: “NEWE 1/11/2002 AD 31456 - AE00110 Batches 16390 16391 16402 copies made

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NYC 9/11 Public Portal Document

Method 200.8 - Summary Report Sample ID: LRB Sample Date/Time: Friday, January 11, 2002 12:51:12 Sample Type: Sample Sample Description: Number of Replicates: 3 Batch ID: Method File: d:\elandata\Method\NEWE200.8.mth Dataset File: d:\elandata\Dataset\daily performance\LRB.2024 Sample Prep Volume (mL): Initial Sample Quantity (mg): Aliquot Volume (mL): Diluted To Volume (mL):

Concentration Results Analyte Mass Meas. Intens. Mean Meas. Intens. RSD Net Intens. Mean Cone. Mean Cone. RSD Sample Unit r Be 9 11.000 9.091 -0.000 -0.00007 2652.54 ug/L |> Sc-1 45 618246.301 2.131 618246.301 ug/L L Mn 55 851.717 23.655 0.000 0.01366 85.82 ug/L r> In 115 1285385.390 1.338 1285385.390 ug/L I Sb 121 247.339 5.808 0.000 0.02571 7.34 ug/L L Sb 123 200.314 7.996 0.000 0.02746 10.05 ug/L r> Ho 165 1730347.275 1.874 1730347.275 ug/L L Tl 205 515.020 10.904 0.000 0.01145 18.60 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery I nt Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff r Be 9 |> Sc-1 45 97.370 L Mn 55 r> In 115 97.468 I Sb 121 L Sb 123 r> Ho 165 96.343 L Tl 205 Calibration Analyte MassCurve Type Correlation Coefficient r Be 9Linear Thru Zero 0.999992 i> Sc-1 45Linear Thru Zero L Mn 55Linear Thru Zero 0.999983 r> In Sb 115Linear Thru Zero 121 Linear Thru Zero 0.999998 L Sb 123Linear Thru Zero 1.000000 r> Ho 165Linear Thru Zero L Tl 205Linear Thru Zero 0.999977

Sample ID: LRB Report Date/Time: Friday, January 11, 2002 12:51:45 Page 1

NYC-WTC_000085489

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