NYC-WTC_000206520

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. Fabio Pedone Received: 7/16/02 3:20:00 PM Warren & Panzer Engineers , P.C. ATC Group#: 8513 228 E. 45tli Street Analysis Date: 7/17/02 New York NY 10017 Fax; (212) 922-0630 Phone: (212) 922-0077 Project: NYC- DEP, W&P# 1079.01.02 26 Vesey Street.

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Non Asbestos # Structures Sensitivity Concentration Sample Coliime Analysed Asb Type(s) 0.5fl-5 5fl (S/cc) (S/mm^) (S/cc) Notes

001 A 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8513 -I

002A 1800.00 . 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8513 -2

003 A 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8513 -3

004A 1800.00 0.0450 0 CHRYSOTILE 0 1 0.0048 22.24 0.0048 85i3 -4

005 A 1800.00 0.0450 0 CHRYSOTILE 0 1 0.0048 22.24 0.0048 S5I3 -5

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by:

Disclaimer: The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by nonOaboratory personnel. This lab is only responsible for data reported in structures/mm7 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 PLIWTEM #101187-0, NY State ELAP #10879

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