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Asbestos air analysis results, H.S., May 2002

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Chain of custody and laboratory report for transmission electron microscopy asbestos fiber analysis at a high school received May 11, 2002.

NYC-WTC_000179640–000179662
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NYC 9/11 Public Portal Document

ATC Associates 104 East 25 Street, New York, NY 10010 Phone: (212) 353-8280 Fax:(212) 353-8306

Attn: Mr. Bernard Orlan Received: 5/11/02 6:00:00 PM N.Y.C. Board of Education ATC Group#: 7717 28-11 Queens Plaza North Analysis Date: 5/12/02 Long Island City, NY 11101 Fax: (212) 475-4122 Phone: (212) 477-8941

Project: H.S. Of Economics And Finance 100 Trinity Place, New York, NY

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CER Part 763 Final Rule (AHERA) Analytical Asbestos zdrea l\on Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed Asb Type(s) O.Sfi-S Sp (S/cc) fS/mmO (S/cc) !>iotes

04 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 7717 -I

05 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 77 J 7

06 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 77/7 -_i

07 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 77i7 -4

08 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 7717 -5

09 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0,0048 7717 -6

10 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 7717 -7

MICHAEL A. GORYCKl, Ph.D. ROMAN PEYSAKHOV

Analyzed by: ^proved by;

Disclaimer: The iaOoratory is not responsible for data reported in structuresicc, which is dependent on volume collected by non-laboratory personnel. This lab is only responsible for data reported in structures/mmT 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. Quality control data (including 95% confidence limits and laboratory and analysis' accuracy and precision) is available upon request.

Accredited for NVLAP PLM/TEM#101187-0, NY State ELAP#10379

Page I of 3

CONFIDENTIAL, CITY_21MC100_003460727 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000179640

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NYC-WTC_000179640Source: NYC Law Department, mirrored locally

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Documentation of asbestos fiber analysis by TEM performed on samples from P.S. 234M received on May 21, 2002.

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