Ambient air sampling report Book Two for 105 Duane Street,

NYC 9/11 Public Portal Document

I ATC Associates Li 104 East 25 Street, New York, NY 10010 Phone: (212) 353-8280 Fax: (212) 353-8306 V VTC

I Attn: Mr. Fred Burkhardt Received: 14/02 3:00:00 AM ATC Associates Inc.

I 104 East 25th Street New York NY 10010 ATC Group #: 6263

Analysis Date: 14/0'-

Li Fax: (212) 353-3599 Phone: (212) 353-8230 Project: Tribeca Towers 105 Duane Street, New York, NY

I Asbestos Fiber Analysis by Transmission Electron Microscopy (TENT) Performed by EPA 40 CFR Part 763 Final Rule (AHER4) Analytical Asbestos Area Non Asbestos Structures Sensitivity Concentration Analyzed Asb Types) o. jAs-S Sp (S/cc) Sample Volume

1 (S/mm) (S/cc) Notes 01 1450.00 0.0562 0 None Detected 0 0 0.0047 <17.79 <0.0047 6263 -1

I 1 I I I I I ROMAN PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

I Analyzed by (~1_I 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 aata reported in structureslmm This reoort 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%

I confidence limits and laboratory and analysis' accuracy and precision) is available upon request.

Accredited for NVLAP PL WTEM #101187-0, NY Slate SLAP #10879

Li NYC-WTC 000104489