NYC-WTC_000205717

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: 6/30/02 7:40:00 PM Warren & Panzer Engineers , P.C. ATC Group#: 8357 228 E. 45th Street Analysis Date: 7/1/02 New York NY 10017 Fax: (212) 922-0630 Phone: (212) 922-0077 Project: NYC-DEP W & P File #; 1079.01.02 21 Ann 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 Caliime Analyzed Asb Type(s) 6.5fi-S 5fl (S/cc) tS/mm’) (S/cc) Notes

1 1755.00 0.0450 0 CHRYSOTILE 0 3 0.0049 66.73 0.0146 8357 -I

1755.00 0.0450 0 None Detected 0 0 0.0049 <22.24 <0.0049 S317 -.

3 1755.00 0.0450 0 CHRYSOTILE 0 1 0.0049 22.24 0.0049 8357 -3

4 1755.00 0.0450 0 CHRYSOTILE 2 1 0.0049 66.73 0.0146 8357 -4

5 1755.00 0.0450 0 CHRYSOTILE 1 1 0.0049 44.48 0.0098 8357 -5

ROMAN PEYSAKHOV MICHAEL A. GORYCKl, Ph.D.

Analyzed by: .pproved by:

Disclaimer: The abcratoy is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. ThiSTab is only responsible for data reported in structures/mn7 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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