NYC-WTC_000213838

NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received: 6/6/02 8:00:00 PM N,Y.C. Board of Education ATC Group#: 7988 28-11 Queens Plaza North Analysis Date: 6/6/02 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 /irea Non Asbestos # Structures Sensitivity Concentration Sample Volume Analyzeti Asb Type(s) 0.5^-5 5fi (S/cc) (S/mm^) fS/cc) Notes

19 1856.00 0.0450 0 None Detected 0 0 0.0046 <22.24 <0.0046 7980 -17

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: tpproved by:

Disclaimer The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collated by non-tabcratory personnel. Tfnflab is only responsible for data reported in stnjctures/mrrf. 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 PLWTEM #101187-0, NY State ELAP #10879

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