Asbestos fiber analysis data sheet, P.S. 89M, May 2002

NYC 9/11 Public Portal Document

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

Attn: Mr. Bernard Orlan Received: S/1/02 8:00.-00 PM N.Y.C. Board of Education ATC Group#: 7597 28-11 Queens Plaza North Analysis Date: 5/1/02 Long Island City, NY 11101 Fax: (212) 475-4122 Phone: (212)477-8941 Project; PS 89M 201 Warren Street, New York, NY Playground, Roof All Floors Hallway

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area /Von Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed Asb Type(s) 0.5iit-5 5fl (S/cc) (S/mm’) (S/cc) /Votes

01 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 75 9 7 -I

02 1840.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0,0047 7597 -2

03 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7597 -3

04 1840.00 0.0450 0 None Detected 0 0 0.0047 < 22.24 <0.0047 759 7 .4

05 1928.00 0.0450 0 None Detected 0 0 . 0,0044 <22,24 <0.0044 759? -5

06 1848.00 0.0450 0 None Detected 0 0 0.0046 <22.24 <0.0046 7597 -6

07 1864.00 0.0450 0 None Detected 0 0 0.0046 <22.24 < 0.0046 7597 -7

ROMAN PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: .pproved by:

Disclaimer: The laboratory is not responsible for data reported in structures/ec, which is dependent on volume collected by non-laboratory petsonnel, TtwISb is only responsible lor data reported in structures/mmL 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 PLM/TEM #101187-0, NY State ELAP #10879

Page I of 2

CONFIDENTIAL, CITY_21MC100_003389899 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000178507