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ATC Associates Asbestos Fiber Analysis Report, June 2002

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Formal report from ATC Associates detailing TEM asbestos fiber analysis performed for the NYC Board of Education on June 17, 2002.

NYC-WTC_000179768–000179770
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NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received; 6/16/02 4:00:00 PM N.Y.C. Board of Education ATC Group#: 8136 28-11 Queens Plaza North Analysis Date: 6/17/02 Long Island City, NY II101

Fax: (212)475-4122 Phone; (212)477-8941

Project: H.S. Of Economics And Finance

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos /frea IVon Asbestos It Structures Sensitivity Concentration Sample Volume Analyzed Asb Typefs) e.sp-s sp (S/cc) (S/mm^) (S/cc) Notes

10 1816.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 SI36 -8

II 1824.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 8136 -9

12 1824.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 SI36 -10

13 1832.00 0.0450 0 None Detected 0 0 0.0047 <22.24 < 0.0047 S136 -II

14 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 SI36 -12

15 1856.00 0.0450 0 None Detected 0 0 0.0046 <22.24 <0.0046 SI36 -13

16 1808.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 8136 -l-t

17 1808.00 0.0450 0 None Defected 0 0 0.0047 <22.24 <0.0047 8136 -15

18 1816 00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0-0047 SI36 -16

MARK PEYSAKHOV MICHAEL A. GORYCKl, Ph.D.

Analyzed Approved by:

Disclaimer The laboratory is not responsible for data reported in structuresJcc, which is dependent on volume collected by non-laboratory personnel. This lab is only responsible for data reported in structures/mm’. This report may not be reproduced, except in full, without written approval by ATC Associates Inc. This report may not be used to claim product endorsement by NVLAP or any other agency of the U.S. Government. This reports relates only to the samples reported above. QuaTity control data (including 95% confidence limits and laboratory and analysis' accuracy and precision) is available upon request.

Accredited tor NVLAP PLM/TEM #101187-0, NY State ELAP #10879

Page 2 of 3

CONFIDENTIAL, CITY_2IMCl00_003461590 SUBJECT TO PROTECTIVE ORDER NO, 2, SEPT. 2008

NYC-WTC_OOO1 79769

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NYC-WTC_000179769Source: NYC Law Department, mirrored locally

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