Asbestos TEM analysis data, 125 [name], Sep 2002

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: Benjamin Sallemi Received: 930.02 8:00:00 A.%,I ATC Associates Inc. ATC Group #: 8916 104 East 25th Street Analysis Date: 9/30/02 New York NY 10010

Fax: (212) 353-3599 Phone: (212) 353-8280

Project: DEP Clean-up ATC Project #: 22906-0002 125 Cedar Street, New York, NY

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) 0.5p-S 5u (S/cc) (S/mm=) (S/cc) Notes

1500.00 0.0450 0 None Detected U 0 0.004S <22.24 <0 0045 9;6 -i

2. ' I S00.00 0.0450 0 None Detected 0 0 0.004S < 2 2.24 <0.0048 8916 -'

3 1500.00 0.0450 0 None Detected 0 0 <22.24 <0.004S 0.0048 89/6 -3

4 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8916 -4

180000 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.004S 89!6

ROMAN PEYSAKHOV / MICHAEL A. GORYCKI, Ph.D.

Analyzed by: f ~G Approved •ny

Disclaimer The laboratory is not responsible for data reported in structures/cc, which is dependent on volume c/Ilecledby -iaboratory personnel. This lab s only resoons;bie for data reportea in structures/mm'. This report may not be reproduced, except in full, without written approval by ATC Associates Inc. This reoort may not be used to caim product endorsement by NVLAP cc any other agency of the U.S. Government. This reports relates only to the samples reported above. Quality control data (induding S ' confidence limits and laboratory and analysis' accuracy and precision) is avaiiable upon request.

4ccreditee'or NVLAP PL %.VTEM 101187-0, NY State EL,P ;10879

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NYC-WTC 000107723