NYC-WTC_000208166

NYC 9/11 Public Portal Document

ATC Associates 104 East 25 Street, New York, NY 10010 Phone; (212) 353-8280 Fax: (212) 353-8306 wc Attn: Mr. Bernard Orlan Received: 5/23/02 9:00:00 PM N.Y.C. Board of Education ATC Group#: 7849 28-11 Queens Plaza North Analysis Date: 5/24/02 Long Island Cry, NY 11101 Fax: (212) 475-4122 Phone: (212)477-8941 Project: NYC-BOE PS 150M Project#: 14584-0824

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area Son Asbestos H Structures Sensitivity Concentration Sample f^oliime Analyzed Asb Type(s) O.Sfi-5 5fi (S/CC) (S/mm^) (S/cc) /Votes

01 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7849 -I

02 192C.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7849 -2

03 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7849 -3

04 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7849 -4

05 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 7849 -5

06 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7849 -6

OT 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 7849 -7

MARK PEYSAKHOV MICHAEL A GORYCKl, Ph.D.

.Approved by:

Disclaimer The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personi iis l^b is only responsible for data reported in structures/mmT 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 endorserrent 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 forNV.AP PLM/TEM #101187-0, NY State ELAP #10879

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NYC-WTC_000208166