NYC-WTC_000178969

NYC 9/11 Public Portal Document

ATC Associates 104 East 25 Street, New York, NY 10010 Phone: (212) 353-8280 Fax; (212) 353-8306

Attn: Mr. Bernard Orlaa Received; 6/2/02 6;00;00 PM N.Y.G. Board of Education ATC Group#: 7937 28-11 Queens Plaza North Analysis Date; 6/2/02 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 # Steucturcs Sensitivity Concentration Sample Volume Analyzeii Asb Type(s) O-Sm-S S/i (S/cc) (S/min‘) (S/cc) Notes

04 1816.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7997 -I

05 I824.0Q 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7937 .2

06 1824.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 7937 -3

07 1824.00 0.0450 0 None Detected 0 0 0.0047 <22.24 < 0.0047 7937 .4

08 1856.00 0.0450 0 None Detected 0 0 0.0046 <22.24 < 0.0046 7937 -S

09 1872.00 0.0450 0 None Detected 0 0 0.0046 <22.24 <0.0046 7937 .6

10 1864.00 0.0450 0 None Detected 0 0 0.0046 <22.24 <0.0046 7937 -7

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by; Approved by:

Disctaimer The laboratory is not resoonsible for data reported in structures/a, which is dependent on volume collected by non-laboratory persormet. ThisTat! is only responsible for data reported instuctures/mm'. This report may r»t be reproduced, except in fuff, 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 date (including 95% confidence limits and laboratory and analysis' accuracy and precision) is available upon request

Accredited for NVLAP PLMfrEM #1011874), NY State ELAP #10879

Page I of 3

CONFIDENTIAL, CITY_21MC100_0 03456400 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000178969