NYC-WTC_000216027

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 Orlan Received: 3/22/02 9:00:00 PM N.Y.C. Board of Education ATC Group#: 7175 28-11 Queens Plaza North Analysis Date: 3/23/02 Long Island City, NY 11101 Fax: (212) 475-4122 Phone: (212) 477-8941 Project: New Stuyvesant H. S., 345 Chambers St., NY , NY

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area /yon Asbestos # Structures Sensitivity Concentration Sample l^olume Analyzed Asb Type(s) 0.5ft-5 5/1 (S/cc) (S/nim^) (S/cc) IVotes

1 1920.00 0.0450 0 None Detected 0 0 , 0.0045 <22.24 <0.0045 7175 -1

2 1920.00 0.0450 ■ 0 NoneOetected 0 0 0.0045 <22.24 <0.0045 7175 -2

1920.00. 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7175 -3

4 -1928.00 0.0450 0 None Detected ' 0 0 0.0044 <22.24 <0.0044 7175-4

5 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7175 -5

6 1928.00 0.0450 0 NoneOetected 0 0 0.0044 <22.24 <0.0044 7f 75 -6

7 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7175 -7

MARK PEYSAKHOV MICHAEL A. GORYCKl, Ph.D.

Analyzed by: Anproved by:

Disclaimer: 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 (or data reported in structuresfmmT 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 iorNVLAP ALMAEM #101167-0, NY State ELAP #10875

Page / af 3

CITY_21MC1OO_OO287635O

NYC-WTC_000216027