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: Benjamin Sallemi Received: 10/3/02 4:00:00 PM ATC Associates Inc. ATC Group #: 8932 104 East 25th Street Analysis Date: l0/402 New York NY 10010

Fax: (212)353-3599 Phone: (212)353-8280

Project: DEP Clean-up ATC Project #: 22906-0002

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•Sp-S Sp (S/cc) (S/mm') (S/cc) Notes

04 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8932 • /

05 1800.00 0.0450 0 None Detected 0 0 0.0048 < 22.24 <0.0048 8932 -2

06 1800.00 0.0450 0 None Detected 0 0 0.0048 < 22. _4 <0.0043 8932 -3.

07 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8932 -4

08 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8932 -i

09 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8932 -6

10 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 3932 -7

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Anal zed bv: pproved by:

Disclaimer The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. Th is only responsible lot data reported in structuree/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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