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ICP-MS analysis report, Dec 26, 2001

Machine-extracted title · confidence 95%

Laboratory summary report detailing concentrations of Beryllium, Scandium, Vanadium, Manganese, and Indium tested December 26, 2001.

NYC-WTC_000085045–000085068

Folder label: “NEWE 12/26/01 29286 - 31380

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NYC 9/11 Public Portal Document

Method 200.8 - Summary Report Sample ID: LRB Sample Date/Time: Wednesday, December 26, 2001 10:43:59 Sample Type: Sample Description: Number of Replicates: 3 Batch ID: Method File: d:\elandata\Method\NEWE200.8.mth Dataset File: d:\elandata\07-18-01 to 01-03-2002\daily performance\LRB.1378 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 14.667 20.830 -0.000 -0.00056 834.84 ug/L |> Sc-1 45 713788.604 3.670 713788.604 ug/L I V 51 1305.774 3.035 0.000 0.00210 81.34 mg/L L Mn 55 522.687 8.471 0.000 0.00405 72.28 ug/L r> In 115 1617303.888 1.182 1617303.888 ug/L I Sb 121 387.679 3.803 0.000 0.02890 3.92 ug/L L Sb 123 284.554 5.068 0.000 0.02768 4.98 ug/L r> Ho 165 2124014.423 1.428 2124014.423 ug/L L Tl 205 1046.071 4.225 0.000 0.00201 62.53 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff r Be 9 |> Sc-1 45 97.467 I V 51 L Mn 55 r> In 115 97.128 I Sb 121 L Sb 123 r> Ho 165 100.195 L Tl 205 Calibration Analyte MassCurve Type Correlation Coefficient r Be 9Linear Thru Zero 0.999967 |> Sc-1 45Linear Thru Zero i V 51 Linear Thru Zero 0.999983 L Mn 55Linear Thru Zero 0.999997 r> In 115Linear Thru Zero I Sb 121 Linear Thru Zero 0.999986 L Sb 123Linear Thru Zero 0.999994 r> Ho 165Linear Thru Zero

Sample ID: LRB Report Date/TIme: Wednesday, January 16, 2002 14:07:43 Page 1

NYC-WTC_000085061

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NYC-WTC_000085061Source: NYC Law Department, mirrored locally

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