NYC-WTC_000206658

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: 7/9/02 4:20:00 PM Warren & Panzer Engineers , P.C. ATC Group#: 8426 228 E. 45th Street Analysis Date: 7/10/02 New York NY 10017 Fax: (212)922-0630 Phone: (212) 922-0077 Project: NYC DEP, W&P# 1079.01.02 30 W Broadway

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 Coliime Analyzed Asb Type(s) 0.5fi-5 5fi (S/cc) (S/mm^) (S/cc) Notes

01 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8426 -I

02 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8426 -2

03 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8426 -3

04 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8426 .4

05 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8426 -1

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: Approved by:

Disclaimer: The laborator/ is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This haBTs 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 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% confiderice 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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NYC-WTC_000206658