NYC-WTC_000188470

NYC 9/11 Public Portal Document

ATC Associates 104 East 25 Street, New York, NY lOOlO Phone; (212) 353-8280 Fax:(212) 353-8306

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 Aibestes Area Non Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed Asb Type(s) (S/cc) (S/mm^) (S/cc) Notes

01 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7876 -I

02 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 < 0.0045 757d -2

03 2031.50 0.0450 0 None Detected 0 0 0.0042 <22.24 <0.0042 7876 -3

04 1912.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7570 -4

05 2031.50 0.0450 0 None Detected 0 0 0.0042 <22.24 < 0.0042 7876 -S

06 1888.00 0.0450 0 NoneDetected 0 0 0.0045 <22.24 <0.0045 7576 -6

07 1896.00 0.0450 0 NoneDetected 0 0 0.0045 <22.24 <0.0045 7J76 -7

MARK PEYSAKHOV MICHAEL A GORYCKI, Ph D

Analyzed by: Approved by:

Disclaimer The laboratory is not responsible for data reported in structurestoc, which is dependent on volume collected by norvtaboratory personnel. TMsdSb is only responsible for data reported in structures/mm’. This report may not be reproduced, except in full, without written approval by ATC Assodates 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 predsion) is available upon request.

Accredited tor NVIAP PLWTEM #1011874), NY State ELAP #10879

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NYC-WTC_000188470