NYC-WTC_000207766

NYC 9/11 Public Portal Document

Attn; Mr. Bernard Orlan Received: 9/5/02 8:00:00 AM N.Y.C, Board of Education ATC Group#: 8809 28-11 Queens Plaza North Analysis Date; 9/5/02 Long Island City, NY 11101 Fax: (212)475-4122 Phone: (212) 477-8941 Project: NYC-BOE PS 42M Project #: 14584-871 . 71 Hester Street, New York, NY.

.J Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area Non Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed Asb Type(s) 0,5/t-5 5/1 (S/cc) (S/mm^) (S/cc) Notes

17 ' I92S.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 5509 -/7

18 1928,00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0,0044 5iW

.MARK PEYSAKHOV MICHAEL A. OORYCKl, Ph.O.

Analyzed by: Approved by:

Disclaimer: The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboretory 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 NVtAP PLWTEM #101187-0, NY State ELAP #10879

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CITY_21MC100_003015911

NYC-WTC_000207768