NYC-WTC_000206472

NYC 9/11 Public Portal Document

ATC Associates I 04 East 25 Street, New York, NY 10010 Phone: (212) 353-8280 Fax: (212) 353-8306

Attn: Mr. Fabio Pedone Received: 6/18/02 7:00:00 PM WaiTcn & Panzer Engineers , P.C. ATC Group#: 8163 228 E. 45th Street Analysis Date: 6/19/02 New York NY 10017 Fax: (212) 922-0630 Phone: (212) 922-0077 Project: NYC-DEP W & P File #: 1079.01.02 116 Nassau 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 l^olume Analyzed Asb Type(s) O.Sfi-5 5fi (S/cc) (S/minf (S/cc) Notes

01 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8163 -I

02 1800.00 0.0899 0 CHRYSOTILE 1 1 0.0048 44.48 0.0095 SI63 -2

03 1800.00 0.0450 0 CHRYSOTILE 1 0 0.0048 22.24 0.0048 8163 -3

04 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 SI63 -4

05 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8163 -5

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: , Agproved by:

Disclaimer: The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This labl 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 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 tor NVLAP PLM/TEM #101187-0, NY State ELAP #10879

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NYC-WTC_000206472