ATC Associates Asbestos Fiber Analysis Report, June 2002

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 11101

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 Area IVon Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed Asb Typefs) O.Sp-S Sp fS/cc) fS/mm’) (S/cc) Notes

’9 1824.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 8136 -17

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed ---------- )proved by:

Disclaimer. The latxiratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. Thalatws only responsible tor data reported in structures/mm’ This report may not be reproduced, except in full, withoul 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 PLMZTEM#101187-0, NY State ELAP #10379

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