NYC-WTC_000205016

NYC 9/11 Public Portal Document

ATC Associates 104 East 25 Street. New York, NY 10010 Phone; (212) 353-8280 Fax; (212) 353-8306 (Sbtc Attn: John Anuforo Received; 6/3/02 9:30:00 AM Cole Consulting Corp. ATC Group#: 7946 2269 Saw Mill River Road Analysis Date: 6/3/02 Elmsford NY 10523 Pax: (914) 343-0045 Phone: (914) 345-6000 Project: BAT #31 N. Portland Avenue, Brooklyn, NY

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed Mi by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area Non Asbestos # Structures Sensitivity Concentration Sample l^olume Aitalyzed Asb Type(s) o.Sp^ Sp (S/cc) (S/inm^) fS/cc) Nates

1 450.00 0.1124 0 None Detected 0 0 0.0076 <8.90 <0,0076 i=Iber Glass-None Detected Silicon-None . 7V't6 -J Detected «• CLlf, 2 450.00 0.1124 0 None Delected 0 0 0-0076 <8.90 <0.0076 Fiber Glass-None Detected SUlcon-None 7946 -2 Detected

450.00 0.1124 0 None Detected 0 0 0.0076 <8.90 <0,0076 FibarGlass-None Detected Silicon-None 7946 -3 Detected ..

ROMAN PEYSAKHOV MICHAEL A. GOKYCKl, Ph.D.

Analyzed by: Approved by; Ml

Disclaimer; The laboratory is not responsible for data reported in slructures/cc. which is dependent on volume collected by non-laboratary parsonnal. This lab Is only responsible lor data reported in structures/mmT This report may not be reproduced, except In full, without written approval by ATC Associates Ino. 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.

Ml Accredited forNVLAP PLM/TEM #101187-0, NY Stale ELAP #10879

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NYC-WTC_000205016