Document identifier, DEP Box 33, Oct 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: 9/23/02 8:00:00 AM • .ATC Associates Inc. ATC Group #: 8883 • .104 East 25th Street Analysis Date: 9/25/02 New York NY 10010 Fax: (212)353-3599 Phone: (212) 353-8280 Project: DEP Clean-up 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 Asb Type(s) 0.5p-5 5p (S/cc) (S/mm') (S/cc) Notes

4 1760.00 0.0450 0 None Detected 0 0 0.0049 <22.24 <0.0049 8883 -/

5 1760.0.0 0.0450 0 CHRYSOTILE 0 2 0.0049 44.48 0.0097 8983 -2

6 1760.00 0.0450 0 None Detected 0 0 0.0049 <22.24 <0.0049 8883 -3•

7 .• 1760.00 0.0450 0 None Detected 0 0 0.0049 <22.24 <0.0049 8883 -4

8 1764.00 0.0450 0 None Detected 0 0 0.0049 <22.24 <0.0049 8883 -5

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by Appro ed 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 on y responsible for data reported in structures/mm'. 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 95% confidence limits and laboratory and analysis' accuracy and precision) is available upon request.

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

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