Chain of custody for air samples from 125 Water Street,

NYC 9/11 Public Portal Document

Attn: Fred Burkhardt Received: 9/20/02 4:00:00 PM \TC Associates Inc. ATC Group #: 8869 104 East 25th Street Analysis Date: 922.02 Ne%% York NY 10010

Fax: (212)353-3599 Phone: (212)353-82S()

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) 0.51e-5 5p (S/cc) (S/mm') (S/cc) Notes

11 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 6869 -3

1800.00 0.0450 0 None Detected 0 0 0.0048 < 22.24 <0.0048 3869 -9

13 1800.00 0.0450 0 None Detected 0 0 0.0048 < 22.24 < 0.0048 .5569 -I0

14 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8569 -II

I'S 1800.00 0.0450 0 CHRYSOTILE I 0 0.0048 22.24 0.0048 •869 -/2

ROMAN PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: provedI by:

Disclaimer. The laboratory is not responsible for data reported in structures/cc. which is dependent on volume collected by non-laboratory personnel. This lab is only responsible for data reported in structuresrmm=. 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 availaole upon request.

-'credited (or NYLLP P!MITEM $101187.0. NY Slate ELAP 3"0879

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NYC-WTC 000129795