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

Attn: Fred Burkhardt Received: 9/2308 8:00:00 AM ATC Associates Inc. ATC Group #: 8881 104 East 25th Street Analysis Date: 9/24/02 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 Types) O.5p-5 Sp (S/cc) (S/mm') (S/cc) Notes

UI 1800.00 0.0450 0 None Detected 0 0 0.0048 < 22.24 <0.0048 888/ -1

02 1800.00 0.0450 0 None Detected 0 0 0.0048 < 22.24 <0.0048 — 8881 -2

3 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 00 881 -3

04 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 3881 -4

05 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 tS81 -i

ROMAN PEYSAKHOV MICHAEL A. GORYCKI. Ph.D.

Analyzed by: ~ / L Ap roved by:

Disclaimer The laboratory is not responsible for data reported in smictureslcc, which is dependent on volume collected by non-laboratory personnel. This 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 to the samples reported above. Quality control data (including 95% confidence limits and laboratory and analysis' accuracy and precision) is available upon request

acc:edaed for NVLAP PLMITEM 4101187-0. NY State ELAP #10879

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