Ambient air sampling report Book Two for 105 Duane Street,

NYC 9/11 Public Portal Document

ATC Associates I 104 East 25 Street. New York. NY 10010 Phone: (212) 353-8280 Fax: (212) 353-8306 1 Attn: Mr. Fred Burkhardt Received: 12/30/01 5:00:00 AM ATC Associates Inc.

I 104 East 25th Street New York NY 10010 ATC Group i#: 623T

Analysis Date: 12/30/01 Fax: (212)353-3599 Phone: (212)353-8280 Project: Tribeca Towers 105 Duane Street, New York, NY I Asbestos Fiber Analysis by Transmission Electron Microscopy (TENI) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Area Non -Asbestos Structures Sensitivity Concentration Sample Volume Analv-ed Asb Types) U.5 5 50 (S/cc) (S/mm=) (S/cc) Notes DI 1300.00 0.0674 0 None Detected 0 0 0.0044 < 14.33 <0.0044 G'_3? -I

tt3 1300.00 0.0674 0 None Detected 0 0 0.0044 < 14.83 <0.0044 6-37-,

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

Analyzed by: proved by: ~~

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Disclaimer: The laboratory is not responsible for data reported in atructuresrcc, which is dependent on volume collected by non-;aboratory personnel. -his lab is only responsible . . . .

for data reported in structuresrmm This report may not be reproduced, except in full, without wntten approval by ATC Associates Inc. This report may not oe used :o riaim 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 (inducing 95% confidence limits and laboratory and analysis' accuracy and precision) is available upon request.

Accredited for NVLAP PLM/TEM 9101187.0, NY State FLAP 910879

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NYC-WTC 000104537