NYC-WTC_000205923

NYC 9/11 Public Portal Document

ATC Associates 104 East 25 Street, New York, NY 10010 Phone:(212) 353-8280 Fax;(212)353-8306 wt Attn: Mr. Fabio Pedone Received: 6/23/02 9:30:00 AM Warren & Panzer Engineers , P.C. ATC Group#: 8237 228 E. 45th Street Analysis Date: 6/23/02 New York NY 10017 Fa.x; (212) 922-0630 Phone: (212)922-0077

Project: NYC-DEP W & P File #: 1079.01.02 177 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 f^'olume Analyzed Asb Type(s) O.Sft-S (S/cc) (S/mm^) (S/cc) Notes

01 1350.00 0.0674 0 None Detected 0 0 0.0042 <14.83 <0.0042 423’ -/

02 1350.00 0.0674 0 None Detected O’ 0 0.0042 < 14.83 <0.0042 423 ’ -2

03 1350.00 0.0674 0 CHRYSOTILE 1 0 0.0042 14.83 0.0042 4'3.

04 13.50.00 0.0674 0 None Detected 0 0 0.0042 <14.83 <0.0042 4'33’ -4

05 1350.00 0.0674 0 None Detected 0 0 0.0042 <14.83 <0.0042

ROMAN PEYSAKHOV MICHAEL A. OORYCKl, Ph.D.

Analyzed by: AjijBroved by : ■<<

Disclaimer: The laooratory is not responsible for data reported in structures/cc, which is dependent on volume colle^ed by non-laboratory personnel. ThisWis 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 control data (including 96% confidence limits and laboratory and analysis' accuracy and precision) is available upon request.

Accredited lor NVLAP PLM/TEM #1011874), NY State ELAP #10879

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NYC-WTC_000205923