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

•Attn: Benjamin Sallemi Received: 10/3/02 8:00:00 AM ATC Associates Inc. ATC Group #: 8927 104 East 25th Street Analysis Date: 10/3/02 • 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) O.5p-5 5p (S/cc) (S/mm') (S/cc) Notes

03 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8927 -/ — 04. 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8927 -2

5 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8927 -3

06 1800.00 0.0450 0 NoneDetected 0 0 0.0048 <22.24 <0.0048 8927 -4

U7 • 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8927 -5

MICHAEL A. GORYCKI, Ph.D. MARK PEYSAKHOV

• Analyzed by~~~~ pproved by:

Disclaimer- The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non•laboralory personnel. This lab is only resoonsible for data reported in structureslmm'. This report may not be reproduced, except in full, without wntten 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%

• conriaence limits and laboratory and analysis' accuracy and precision) is available upon request.

Accredited for NVLAP PLMITEM #101187-0. NY State ELAP x10879

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