Chain of custody for air samples from 125 Water Street,

NYC 9/11 Public Portal Document

Attn: Benjamin Sallemi Received: 10i4102 4:00:00 PM ATC Associates Inc. ATC Group #: 8935 104 East 25th Street

. Analysis Date: 10/5/02 .. New York NY 10010 Fax: (212)353-3599 Phone: (212)353-8280 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) O.Sp-5 Sp (S/cc) (S/mm') (S/cc) iVotes

I) • 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8935 -8

12 • - 1800.00 0.0450 0 CHRYSOTILE 0 I 0.0048 22.24 0.0048 8935 -9

13 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8935 -10

MARK PEYSAKHOV MICHAEL A. GORYCKI. Ph.D.

Analyzed by ~ Ap roved by:

Cisclaimer• The laboratory is not responsible for data reported in structuresicc. which is dependent on volume collected by non-laboratory personnel. This lab i y resoonsible for.ata reported in structures/mm' This report may not be reproduced, except in full, without written approval by ATC Associates :nc. 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 x101187-0. NY State ELAP #10879

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