Chain of custody for air samples from 125 Water Street,

NYC 9/11 Public Portal Document

ATC Associates 104 East 25 Street, New York, NY 10010 r

+ u

Phone:(212)353-8280 Fax:(212) 353-8306

Attn: Benjamin Sallemi Received: 9/23/02 4:00:00 PM ATC Associates Inc. ATC Group #: 8885 104 East 25th Street Analysis Date: 9/25/02 New York NY 10010 Fax: (212) 353-3599 Phone: (212) 353-8230 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 .-Irea Non Asbestos # Structures Sensitivity Concentration Sample Volume .4nalyzed .4sb Types) O.5p-5 Sp (S/cc) (S/mm') (S/cc) Notes

04 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8885 -!

05 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8885 -2 ft

1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 335 --

07 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8885 - 4

08 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 S85 -5

1800.00 0.0450 0 None Detected 0 0 0.0048 < 22.24 <0.0048 sys5 -e

10 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 88.35 - 7

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D. Analyzed by: Ap roved by:

Discraimer:'The laboratory is not responsible for data reported in structureslcc. which is dependent on volume collect d by non-laboratory personnel. This lab is only 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 10 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 PLMITEM 4101187.0. NY State ELAP 410879

Page /of2

NYC-WTC 000129817