Chain of custody for air samples from 125 Water Street,

NYC 9/11 Public Portal Document

Attn: Fred Burkhardt Received: 9/16/02 4:30:00 PM ATC Associates Inc. ATC Group #: 8844 104 East 25th Street Analysis Date: 9,18/02 New York NY 10010

Fax: (212) 353-3)99 Phone: (212) 353-8280

Project: DEP Cleaan-up 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 Asb Type(s) :o.Sp-S Si' (S/cc) (S/mm') (S/cc) Notes

20 2370.00 0.0450 0 CHRYSOTILE I I 0.0036 44.48 0.0072 8844 -17

21 2360.00 0.0450 0 None Detected 0 0 0.0036 <22.24 <0.0036 8844 -18

MICHAEL A. GORYCKI, Ph.D. MARK PEYSAKHOV

Analyzed by: /_~~ — proved by:

Disclaimer. The laboratory is not responsible for data reported in structures/cc, which is dependent on volume colleZ~bvnon boratory personnel. This I 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 PLM/TEM #101187-0. NY State ELAP #10879

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NYC-WTC 000129757