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Transmission electron microscopy analysis results, Oct 2002

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TEM analysis report of air samples for DEP cleanup project at 125 address, performed per AHERA methodology for abatement clearance.

NYC-WTC_000107331–000107334
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NYC 9/11 Public Portal Document

Attn: Benjamin Sallemi Received: 10/2'02 4:00:00 PM ATC Associates Inc. ATC Group #: 8926 A 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.Sp-5 5s (S/cc) (S/mm') (S/cc) Notes

11 1800.00 0-0450 0 None Detected 0 0 0.0048 < 22.24 <0.0048 8926 -8

12 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8926 -9

13 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8926 -/0

MICHAEL A. GORYCKI, Ph.D. MARK PEYSAKHOV Analyzed by: / l~/ A proved 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 is only responsible for data reported in structures/mm2. 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 PLMITEM #101187-0, NY State ELAP #10879

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NYC-WTC 000107333

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NYC-WTC_000107333Source: NYC Law Department, mirrored locally

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

NYC-WTC_000107360

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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machine-extracted · confidence unavailable · Check page ↗

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