NYC-WTC_000204992

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: Akin A Cole Received: 5/10/02 8:00:00 PM Cole Consulting Cotp. ATC Group#: 7703 2269 Saw Mill River Road Analysis Date: 5/11/02 Elmsford NY 10523 Fax: (914) 345-0045 Phone: (914) 345-6000 Project: FDNY, Batallion 17 1080 Ogden Avenue, Bronx

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 l^oliime Analyzed Asb Typefs) 0.5f,.5 Sp fS/cc) (S/mm^) (S/cc) Notes

I 450.00 0.1124 0 None Detected 0 0 0.0076 <8.90 <0.0076 Fiberglass-None Detected Silicon-None 7703 -/ Detected "Tr^cK

MARK PEYSAKHOV 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/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 reported above. Quality cont-ol data (including 95% confidence limits and laboratory and analysis' accuracy and precision) is available upon request.

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

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NYC-WTC_000204992