NYC-WTC_000189588

NYC 9/11 Public Portal Document

Attn; Mr. Bernard Orlan Received: 3/26/02 8:00:00 PM N.Y.C, Board of Education ATC Group#: 7220 28-11 Queens Plaza North Analysis Date: 3/27/02 Long Island City, NY 11101 Fax: (212) 475-4122 Phone: (212)477-8941 Project: NYC BOE H.S. For Leadership & Public Services 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 Non Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed Asb Typefs) 0.5fi-S 5fl fS/cc) (S/mm^) (S/cc) Notes

20 1824.00 0.0450 0 None Detected 0 0 0.0047 <22,24 <0.0047 7220 -17

21 1824.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7220 -iS

MARK PEYSAKHOV MICHAEL A, GORYCKl, Ph.D.

Analyzed by:

Disclaimer: The laboratory is not responsible for data reported in structures/oc, which is dependent on volume collected by non-laboratory personnel. Tn^ab is only responsible for data reported in structures/mmL 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 PLIWTEM #101187-0, NY State ELAP #10879

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