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Transmission electron microscopy analysis results, Oct 2002

Machine-extracted title · confidence 100%

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

ATC Associates * 104 East 25 Street, New York, NY 10010 Phone:(212)353-8280 Fax:(212) 353-8306 ATC Attn: Benjamin Sallemi Received: 10/2/02 4:00:00 PM ATC Associates Inc. ATC Group #: 8926 104 East 25th Street Analysis Date: 10/3/02 Nev 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 1Von Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed Ash Type(s) 0.5u-5 5fr (S/cc) (S/mm') (S/cc) Notes

04 1800.00 0.0450 0 None Detected 0 0 0.0048 < 22.24 <0.0048 8926 -1 - - - --- -- - ------- - - - ----- - -22.22_..---- -- - 05. 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8926 •-2

06. 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8926 -3 ----- _2222.---- ----- -- - ------- ------ ---- __.......--- - - 07 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 •5926 -4

08 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 89'6 -5

09 1800.00 0.0450 0 None Detected 0 0 0.0048 < 22.24 <0.0048 8925 -6

10 1800.00 0.0450 0 CHRYSOTILE 0 1 0.0048 22.24 0.0048 -7 .926

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: Approved 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/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 PLM1TEM #101187-0, NY State ELAP #10879

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NYC-WTC 000107332

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NYC-WTC_000107332Source: NYC Law Department, mirrored locally

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