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 Phone:(212)353-S280 Fax:(212)353-8306

Attn: Benjamin Sallemi Received: 923.02 8:0000 Ail :A IC .- ssociar:s Inc. ATC Group #: 3882 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 Analyeed Asb Type(s) 0.5µ-S sp (S/cc) (S/mm') (S/cc) Notes

01 176000 0.0450 0 None Detected 0 0 0.0049 <22.24 <0.0049 888' -1

( 2 1760 UU 0.0450 0 None Detected 0 0 0.0049 <22 24 <0 0049 888?

03 1760.00 0.0450 0 NoneDetected 0 0 0.0049 <22.24 <0.0049

• 8882 -1

04. 1760.00 0.0450 0 None Detected 0 0 0.0049 <22.24 <0.0049 8882 -4

05 1760.00 0.0450 0 None Detected 0 0 0.0049 <22.24 <0.0049 888.2 -S

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: Approved 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 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

• Accredited for NVLAP PLMITEM #101187-0. NY State ELAP $10879

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NYC-WTC 000129837