Chain of custody for air samples from 125 Water Street,

NYC 9/11 Public Portal Document

ATC Associates y' 104 25 Street, New York, NY 10010 East

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

Attn: Fred Burkhardt Received: 9120/02 8:00:00 AM ATC Associates Inc. ATC Group #: 8865 104 East 25th Street Analysis Date: 9/22/02 New York NY 10010 Fax: (212)353-3599 Phone: (212)353-8280 Project: DEP Cleaan-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 Sp (S/cc) (S/mm') (S/cc) Notes

01 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8865 -I

02 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8865 -2

3 1800.00 0.0450 0 NoneDetected 0 0 0.0048 <22.24 <0.0048 8365 -3

tt;t I SO4.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 8865 -4

U5 . 1504.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 8865 -5

ROMAN PEYSA V MICHAEL A. GORYCKI, Ph.D

Analyzed by G proved by

Disclaimer The :aboratory is not resoonsible for data reoorted in structuresrcc. which is dependent on volume coltetted by non-laboratory personnel. This tao is only responsible i9r 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 PLM(TEM x101187-0. NY State ELAP #10879

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