Ambient air sampling report Book Two for 105 Duane Street,

NYC 9/11 Public Portal Document

L_ Attn: Mr. Benjamin Sallemi Received: 12, 13,01 8:00:00 AM ATC Associates Inc

1 104 East 25th Street New York NY 10010 ATC Group #: 6087

Analysis Date: 12/13.01 Fax: (212)353-8306 Phone: (212)353-8280 Project: Tribeca Towers 105 Duane Street, NY, NY 1 Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHER4) Analytical Asbestos Area Non Asbestos Structures Sensitivity Concentration Sample Volume Analy:ed Ash Type(s) 0.s-5 5p (S/cc) (S/mm') (S/cc) Notes 9 1300.00 0.0674 0 None Detected 0 0 0.004-1 <14.83 <0.0044 6087 -9

I0 i 300.00 0.0674 0 None Detected 0 0 0.0044 < 14.83 <0.0044, 6087 -10

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J I I MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D. i Analyzed by' Approved by:

I Disclaimer The laboratory is not responsible for data reported in structuresicc. which is dependent on volume collected by non-laboratory personnel. This lab is only responsible for data reported ;n structuresimm'. This report may not be reproduced, except in full, without wntten approval by ATC Associates Inc. This report may not be used to claim

I product endorsement by NVL.P or any other agency of the U.S. Government. This reports relates only to the samples reported above. Quality control data (including 95% confluence limits and laboratory and analysis' accuracy and preesion) is available upon request.

Accredited for NVLAP PL:ATEM #101187-0, NY State E_AP 410879

NYC-WTC 000104500