Chain of custody for air samples from 125 Water Street,

NYC 9/11 Public Portal Document

Attn: Benjamin Sallemi Received: 10/9.%02 1:00:00 PM ATC Associates Inc. ATC Group #: 8950 • 104 East 25th Street Analysis Date: 1013.02 New York NY 10010 Fax: (212) 353-3599 Phone: (212) 353-S2S0 Project: DEP Clean-up ATC 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.Sfr-S Sp (S/cc) (S/rnm') (S/cc) Notes

A 2N 46 3600.00 0.1236 2 None Detected 0 0 0.0009 <8.09 <0.0009 Gypsum -1 Structures, Glass - 1 Structures 8950 -a4

A 2N 4 r 3600.00 0.1236 3 None Detected 0 0 0.0009 < 8.09 <0.0009 Cellulose -1 Structures, Gypsum - 2 Structures ,7950 -45

A 2N 48 3600.00 0.1236 9 CHRYSOTILE 2 0 0.0009 16. 18 0.0017 Cellulose -6 Structures. Gypsum -3 Structures 8950 -46

A 2 '19 3600.00 0.1236 I None Detected 0 0 0.0009 <8.09 <0.0009 Gypsum -1 Structures 8950 -47

AI 50 3600.00 0.1236 1 None Detected 0 0 0.0009 <8.09 <0.0009 Cellulose - 1 Structures O 950 -48

MARK PEYSAKHOV MICHAEL A. GORYCKI. Ph.D.

Analyzed by: .4p oved by:

Disclaimer: The !aboratory is not responsible for data reported in structures/cc, which is dependent on volume cole 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 ccaim proouc: 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

Sunday, October 13, 2002 Page 6oj6

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