NYC-WTC_000188403

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received: 5/11/02 4:30:00 PM N.Y.C. Board of Education ATC Group#: 7716 28-11 Queens Plaza North Analysis Date: 5/11/02 Long Island City, NY 11101 Fax: (212)475-4122 Phone: (212)477-8941 Project: H.S, for Leadership & Public Service 90 Trinity Place, New York, NY

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area />/on Asbestos # Structures Sensitivity Concentration Sample yolume Analyzed Asb Type(s) 0.Sp-S 5p (S/cc) (S/mm^) (S/cc) Notes

20 1848.00 0.0450 0 None Detected 0 0 0.0046 <22.24 < 0.0046 7716 -17

21 1864.00 0.0450 0 None Detected 0 0 0.0046 <22.24 < 0.0046 7716 -IS

ROMAN PEYSAKHOV MICHAEL A. GORYCKl, Ph D.

Analyzed by: pproved by:

Disclaimer: The latxjratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This laEs only responsible fordala reported in structures/mm’. This report may not be reproduced, except in full, wittiout 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 #10879

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