Asbestos TEM analysis data, 125 [name], Sep 2002

NYC 9/11 Public Portal Document

AT.0 Associates 104 East 25 Street, New York, NY 10010 w

Phone: (212) 353-8280 Fax: (212) 353-8306

Attn: Benjamin Sallemi Received: 9/25,02 8:00:00 AM ATC Associates Inc. ATC Group #: 8891 104 East 25th Street Analysis Date: 9/25/02 New York NY 10010 Fax: (212)353-3599 Phone: (212) 353-8280 Project: DEP Clean-up Project #: 22906-0002 125 Cedar Street, 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 Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed Asb Type(s) 0.5p-5 5p (S/cc) (S/min') (S/cc) Notes

1 180000 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 889/ -[

2..' 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 sv/ -?

3 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8891 -3

4 1804.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 889/ -4

5 1808.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 8891 -5

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by Ap roved 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 for data reported in structures/mm'. 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

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