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Method 200.8 summary report, Dec 20 2001

Machine-extracted title · confidence 95%

Summary report of Method 200.8 analysis results for multiple analytes including beryllium, chromium, and manganese from December 20, 2001.

NYC-WTC_000067263–000067404

Folder label: “12/20/01 NEWQ 29289-30009 copies made

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NYC 9/11 Public Portal Document

Method 200.8 - Summary Report Sample ID: Blank Sample Date/Time: Thursday. December 20, 2001 13:44:56 Sample Type: Sample Sample Description: [date ANALYZED 12L Number of Replicates: 3 1 TIME AN ALYZED I - Batch ID: I analyst INITIALS Method File: d:\Elandata\Method\NEWQ200.8.mth Dataset File: d:\Elandata\Dataset\daily performance\Blank.1170 I reviewed BY 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 35.667 27.661 ug/L I: Sc-1 45 782893.243 6.189 ug/L I Cr 52 11215.561 12.847 ug/L I Cr 53 481.013 0.953 ug/L I Mn 55 881.369 3.556 ug/L I Ni 60 967.709 11.740 ug/L I Cu 63 2984.342 3.742 ug/L L Cu 65 1483.092 5.014 ug/L r Zn 66 1493.426 3.416 A ug/L I Zn 67 269.005 3.241 ug/L I Zn 68 1120.055 1.580 ug/L I: Ge 72 142834.042 4.091 ug/L I As 75 235.598 24.857 ug/L I Se 77 137.335 7.438 ug/L L Se 82 211.337 3.221 ug/L r Ag 107 792.363 6.331 ug/L I: In 115 1590507.909 2.457 ug/L I Sb 121 3207.726 2.214 ug/L L Sb 123 2504.428 2.136 ug/L r Ba 135 455.012 2.857 ug/L I Ba 137 788.030 7.815 ug/L I; Ho 165 2081962.311 3.753 ug/L I Tl 205 756.361 2.558 ug/L L Pb 208 7781.910 1.158 ug/L

Sample ID: Blank Report Date/Time: Thursday, December 20, 2001 13:46:27 Page 1

NYC-WTC_000067263

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NYC-WTC_000067263Source: NYC Law Department, mirrored locally

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