NYC-WTC_000206505

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: 6/13/02 7:00:00 PM Warren & Panzer Engineers, P.C. ATC Group#: 8091 228 E. 45th Street Analysis Date; 6/14/02 New York NY 10017 Fax: (212) 922-0630 Phone: (212) 922-0077 Project: NYC-DEP W & P File #: 1079.01.02 23 Trinity PL. / 47 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 yolume Analyzed Asb Type(s) 0.5fi-5 Sfi (S/cc) (S/mm^) (S/cc) Notes

025 1400.00 0.0562 0 None Detected 0 0 0.0049 <17.79 <0.0049 8091 -I

026 1400.00 0.0562 0 None Detected 0 0 0.0049 <17.79 <0.0049 8091

027 1400.00 0.0562 0 None Detected 0 0 0.0049 <17.79 <0.0049 8091 -3

028 1400.00 0.0562 0 None Detected 0 0 0.0049 <17.79 <0.0049 8091 -4

029 1400.00 0.0562 0 NoneDetected 0 0 0.0049 <17.79 <0.0049 8091 -5

MARK PEYSAKHDV MICHAEL A. GORYCKI, Ph.D.

Analyzed by; Approved by:

Disclaimer The laboratory 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 structures/mm'. 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 #101187-0, NY State ELAP #10879

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