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TEM air analysis report, 125 Liberty Street, Oct 2002

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Transmission electron microscopy results for air samples collected during DEP cleanup operations at 125 Liberty Street.

NYC-WTC_000107938–000107941
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NYC 9/11 Public Portal Document

Attn: Benjamin Sallemi Received: 10/4/02 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 Ash Type(s) 0.5,-S 5p (S/cc) (S/mm') ('S/cc.) Notes

II . 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 1 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 -/0

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by f ~ Ap roved by:

Disclaimer The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. This lab i y responsible for an 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 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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NYC-WTC 000107940

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NYC-WTC_000107940Source: NYC Law Department, mirrored locally

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Chain-of-custody letter from ATC Associates to DEP documenting transmission electron microscopy results for asbestos clearance at a DEP cleanup site.

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TEM air analysis report, 125 [name], Oct 2002 · Box DEP Box 38

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Chain-of-custody letter from ATC Associates to DEP documenting transmission electron microscopy results for asbestos clearance at a DEP cleanup site.

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