NYC-WTC_000205983

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: 7/15/02 7:00:00 AM Warren & Panzer Engineers , P.C. ATC Group#: 8496 228 E. 45th Street Analysis Date: 7-15/02 New York NY 10017 Fa.x: (2121 922-0630 Phone: (212)922-0077 Project: NYC DEP, W&P# 1079.01.02 144 Chambers Street, Facade

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 Typefs) O.S/i-5 5/1 (S/cc) (S/mm^) (S/cc) Notes

001 .A 1350.00 0.0674 0 None Detected 0 0 0.0042 <14.83 <0.0042 8496 -I

002A 1350.00 0.0674 0 None Detected 0 0 0.0042 <14.83 <0.0042 8496 -2

003 A 1350,00 0.0674 0 None Detected 0 0 0.0042 <14.83 <0.0042 S496 -2

004A 1350,00 Not Analyzed No Filter in the Cassett 8496 -4

005A 1350.00 0.0674 0 None Detected 0 0 0.0042 <14.83 <0.0042 8496 -5

ROMAN PEYSA; MICHAEL A. GORYCKI, Ph.D.

Analyzed by: Approved by

Disclaimer: The laboratory is not respcnsible for data reported in structures/cc, which is dependent on volume collectet 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 for NVLAP PLM/TEM #101137-0, NY State ELAP #10879

Page I i/f I

CITY_21MC100_002992249

NYC-WTC_000205983