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Chain of custody for asbestos air samples, Sept 2002

Machine-extracted title · confidence 98%

Chain of custody document tracking TEM analysis of air samples from the DEP cleanup project at 125 [name].

NYC-WTC_000177491–000177495
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NYC 9/11 Public Portal Document

.Attn; Fred Burkhardt Received: 9/16/02 4:30:00 PM .ATC .Associates Inc. ATC Group#: 8844 104 East 25th Street Analysis Date: 9/18/02 New York NY 10010 Fax: (212) 353-3599 Phone: (212) 353-8280 Project: DEP C!eaan-up Project 22906-0002 125 Cedar Street, New York, NY

Asbestos Fiber Analysis by Transmission Electron iVIicroscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area Non Asbestos it Structures Sensitivity Concentration Sample i^olume Analyzed Asb Type(s) iO.Sp.S (S/cc) (S/mm^) (S/cc) Notes

20 2370.00 0.0450 0 CHRYSOTILE 1 0.0036 44.48 0.0072 8S44 -/7

21 2360,00 0.0450 0 None Detected 0 0 0.0036 <22.24 <0.0036 SS44 -18

MARK PEYSAKHOV MICHAEL A. GORYCKl, Ph D.

- Analyzed by: iproved by:

Disclaimer: The laboratory is not responsible for data reported in structuresfcc, which isidependent on volume by non-laboratory personnel. This lab-istonly responsible for data reported in structures/mmL 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 upontrequesL

Accredited for NVLAP PLMCEM #101187-0, NY State ELAP #10879

Page .1 of 3

CONFIDENTIAL, CITY_21MC100_003446467 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000177493

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NYC-WTC_000177493Source: NYC Law Department, mirrored locally

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