NYC-WTC_000205049

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: John Anuforo Received: 6/18/02 8:00:00 PM Cole Consulting Corp. ATCGroup#: 8170 2269 Saw Mill River Road Analysis Date: 6/19/02 Elmsford NY 10523 Fax: (914)345-0045 Phone: (914)345-6000 Project: FDNY Portland Avenue, Brooklyn, NY

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analyticai Asiestos Area Nan Asbestos ItStruaures SensUMty Cancentratian ■ Sample Palume Analyzed Asb Typefs) O.Sft-S Sp (s/a^ (S/mm^) (S/cc) Nates

I 450.00 0.II24 0 None Detected 0 0 0.0076 <8.90 <0.0076 Fiber Glass-Nora Dctectad Sifieon-None SI70 -/ Detected

2 450.00 0.1124 0 NoneDetaciBd 0 0 0.0076 <8.90 <0.0076 Fiber Glass-None Detected Silicon-None S/70 -2 Detected \

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MARK PEYSAKHOV MICHAEL A. CORYCKl, Ph.D.

Analyzed by: Approved by;

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Disclaimer. The laboratory is not responsible (or da© ©ported In slructures/oc, which is dependent on volume coHectad by nonJaboratory personnel. Tiiis tab s only responsible : 5 (or data reported in structures/mm’. This report not be reproduced, except In fuH, without written approval by ATC Associates Inc. This report may not be used to claim iaa product endoisement by NVLAP or any other agency of the U.S. Government This repons rotates only to the samples reported above, Quality convol d ita {including 95% confidence limits and laboratory and analysis’ accuracy and precision) Is available upon request

Aocredited for NVLAP PLM/TEM inoiiaAO, NY Sia© ELAP #10479

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NYC-WTC_000205049