NYC-WTC_000206607

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: 7/20/02 1:00:00 PM Warren & Panzer Engineers , P.C. ATC Group#: 8553 228 E. 45th Street Analysis Date: 7/21 /02 New York NY 10017 Fax: (212)922-0630 Phone: (212)922-0077 Project: bP/C DEP, Vv&P/ 1079.01.02 53 Warren Street

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 f^olume Analyzed Asb Type(s) 0.5ft-5 Sfi (S/cc) (S/mm^) (S/cc) Notes

OOIA 1300.00 0.0674 0 None Detected 0 0 0.0044 <14.83 <0.0044 8553 -/

002A 1300.00 0.0674 0 None Detected 0 0 0.0044 <14.83 < 0.0044 8553 -2

003A 1300.00 0.0674 0 None Detected 0 0 0.0044 <14.83 <0.0044 8553 -3

004A 1300.00 0.0674 0 None Detected 0 0 0.0044 <14.83 <0.0044 S553 -4

005A 1300 00 0.0674 0 None Detected 0 0 0.0044 <14.83 <0.0044 8553 -5

ROMAN PEYSA: )V MICHAEL A. GORYCKl, Ph.D.

Analyzed by: Anproved by:

Disclaimer: The -aboratory 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 stnictures/mmT This report may not be reproduced, except in full, without written approval by ATC Associates Ine. 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 PLMTEM #101187-0. NY State ELAP #10879

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NYC-WTC_000206607