NYC-WTC_000199293

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.

• 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 Analyzeti Asb Type(s) 6.5fi-5 5fi (S/cc) (S/mm^) (S/cc) Notes

17 ■ 192S.O0 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 S809 -/7

18 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 SS09 -IS

I

.MARK PEYSAKEIOV MICHAEL A. GORYCKI, Ph.D.

Analyzed ' Approved by:

Discla’mer: The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This lab is only responsible for data reported in structures/mm’. This report m ay 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 ^LM/TEM #101187-0, NY state ELAP #10879

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