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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: CCV STD2 60 PPB Sample Date/Time: Friday, January 11, 2002 13:29:43 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\CCV STD2 60 PPB.2040 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 28543.051 3.044 0.046 58.73098 3.10 ug/L |> Sc-1 45 614331.198 0.975 614331.198 ug/L L Mn 55 1023326.710 0.580 1.665 57.71608 0.66 ug/L r> In 115 1268802.467 2.129 1268802.467 ug/L I Sb 121 482539.933 0.818 0.380 59.03756 2.81 ug/L L Sb 123 376970.200 0.706 0.297 60.10107 2.73 ug/L r> Ho 165 1729949.127 0.983 1729949.127 ug/L L Tl 205 1592831.126 4.616 0.920 59.49670 3.64 ug/L

(3C Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff r Be 9 45 96.754 I: Se-I L Mn •55 n In 115 96.211 Sb 121 L Sb 123 r Ho 165 96.320 L Tl 205 Calibration Analyte MassCurve Type Correlation Coefficient r Be OLinear Thru Zero 0.999992 |> Sc-1 45Linear Thru Zero L Mn SSLinear Thru Zero 0.999983 r> In 11 SLinear Thru Zero I Sb 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: CCV STD2 60 PPB Report Date/Time: Friday, January 11, 2002 13:30:16 Page 1

NYC-WTC_000085505

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