NYC-WTC_000189148

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: 2/12/02 9:00:00 PM N.Y.C. Board of Education 28-11 Queens Plaza North ATC Group 6658 Long Island City, NY 11101 Analysis Date: 2/13/02 Fax: (212)475-4122 Phone; (212) 477-8941 Project: NYC-BOE PS 234M Project#: 14584-1823 292 Greenwich St., New York, NY

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area Non 'isbestos Structures Sensitivity Concentration Sample i''a[ume Analyzed Asb 0.5fi-5 5fl (S/cc) (S/mnC) (S/cc) Notes I 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6658 -1

2 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6658 -2

J 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <0.0045 6658-3

4 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 6658 -4

5 1928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 . <0.0044 6658 -5

6 1'928.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 6658 -6

7 9285.0 0.0450 0 None Detected 0 0 0.0004 <22.24 <0.0004 6658 -7

8 1936.00 0.0450 0 None Detected 0 0 0.0044 <22.24 <0.0044 6658 -8

MARK PEYSAKHOV MICHAEL A. OORYCKI, Ph.D.

Analyzed by; Approved by:

Disclaimer: The laboratory is not responsible tor data reported in structures/co, which is dependent on volume collected by non-laboratory personnel. This lab is only responsible for data reported in strjctures/mmr 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 avaiiable upon request.

Accredited for NVLAP PLM/TEM #101187-0, NY State ELAP #10679

CITY_21MC100_003084006

NYC-WTC_000189148