Air sample TEM analysis results, Oct 2002

NYC 9/11 Public Portal Document

ATC-Associates 104 East 25 Street, New York 1 Phone:(212) 353-8280 10010 Fax:(212) 353-8306 CY/ATt Attn: Benjamin Sallemi Received: 10i"102 4:00:00 PM • ' ATC Associates Inc. ATC Group #: 8922 •T 104 East 25th Street Analysis Date: 10/2;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) 0.5p-5 5p (S/cc) (S/mm') (S/cc) Notes

04 1500.00 0.0450 0 None Detected 0 0 0.0048 < 22.24 <0004S 8922 -/

05 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8972 - 2

06 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8922 -3

47 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8922 -4

08 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8922 .5

09 180000 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 .8921 -6 .

10 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8922 -.

MICHAEL A. GORYCKI, Ph.D. '. MARK PEYSAKHOV Analyzed Approved by: I -i A /7 , ) /l

Disclaimer: The laboratory is not responsible for data reported in structures/cc, which is dependent on volume collected by non-laboratory personnel. Thi15 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 PLMITEM #101187.0. NY State ELAP #10879

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NYC-WTC 000107928