NYC-WTC_000204059

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received: 5/26/02 4:00:00 PM N.Y.C. Board of Education ATC Group#: 7876 28-11 Queens Plaza North Analysis Date: 5/26/02 Long Island City, NY 11101 Fax: (212)475-4122 Phone: (212) 477-8941 Project: H.S. for Leadership & Public Service

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) O.Sfi-5 5fl (S/cc) (S/mm’) (S/cc) Notes

17 2261.00 0.0450 0 None Detected 0 0 0.0038 <22.24 <0.0038 7876 -17

18 1904.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7S76 -18

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: Approved by: r»—-

Disclaimer. The laboratory is not responsible for data reported in structures/cc, which is dependent on volume coll&ted by non-laboratory personnel. This ily responsible for data reported in stnictures/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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