NYC-WTC_000206041

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 Redone Received: 6/24/02 10:00:00 PM Warren & Panzer Engineers , P.C. ATC Group#: 8271 228 E. 45th Street Analysis Date: 06/24/02 New York NY 10017 Fax: (212)922-0630 Phone: (212)922-0077 Project: NYC-DEP W & P File #: 1079.01.02 15,17,17 1/2 Dutch 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 Volume Analyzed Ash Type(s) 0.5fi-5 5/1 (S/cc) (S/mm^) (S/cc) Notes

JB62402-I 1680.00 0.0562 0 None Detected 0 0 0.0041 <17.79 <0.0041 8271 -/

JB62402-2 1680.00 0.0562 0 None Detected 0 0 0.0041 <17.79 <0.0041 8271 -2

JB62402-3 1680.00 0.0562 0 None Detected 0 0 0.0041 <17.79 <0.0041 827/ -3

JB62402-4 1680.00 0.0562 0 None Detected 0 0 0.0041 <17.79 <0.0041 8271 -4

JB62402-5 1680.00 0.0562 0 None Detected 0 0 0.0041 <17.79 <0.0041 S27I -5

ROMAN PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: y/Approved by:

/UtxX-/ Disclaimer: The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This laois only responsible for data reported in structures/mmL 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 repotted above. Quality control data (including 95% confidence limits and laboratory and analysis' accuracy and precision) Is available upon request.

Accredited for NVLAP PLMfTEM #101187-0, NY State ELAP #10879

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NYC-WTC_000206041