NYC-WTC_000206630

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: 6/28/02 6:00:00 PM Warren & Panzer Engineers , P.C. ATC Group#; 8323 228 E. 45th Street Analysis Date: 6/29/02 New York NY 10017 Fax: (212) 922-0630 Phone: (212) 922-0077 Project; NYC-DEP W & P File #: 1079.01.02 30 W Broadway BMCC

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CER Part 763 Final Rule (AHERA) Analytical Asbestos Area Non Asbestos # Structures Sensitivity Concentration Sample Coluine Analyzed Asb Typefs) O.Sfi-S 5fi (S/cc) (S/mm^) (S/cc) Notes

01 1680.00 0.0562 0 None Detected 0 0 0.0041 <17.79 <0.0041 8323 -I

02 1680.00 0.0562 0 None Detected 0 0 0.0041 <17.79 < 0.0041 8323 -2

03 1680.00 0.0562 0 None Detected 0 0 0.0041 <17.79 <0.0041

04 1680.00 0.0562 0 None Detected 0 0 0.0041 <17.79 <0.0041 8323 -4

05 1680.00 0.0562 0 None Detected 0 0 0.0041 <17.79 <0.0041 8323 -3

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: ■pproved by:

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

Page ! of!

CITY_21MC100_002994040

NYC-WTC_000206630