Chain of custody for air samples from 125 Water Street,

NYC 9/11 Public Portal Document

ATC Associates 104 East 25 Street, New York, NY 10010 V Phone: (212) 353-82S0 Fax: (212) 353-8306

Attn: Benjamin Sallemi Received: 10/2/02 4:00:00 PM ATC Associates Inc. ATC Group #: 8926 104 East 25th Street Analysis Date: 10/3/02 New York NY 10010 Fax: (212) 353-3599 Phone: (212) 353-8280 Project: DEP Clean-up ATC Project #: 22906-0002

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 7%3 Final Rule (AHERA) Analytical Asbestos Area Non Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed .4th Types) 0.SN-5 Su (S/cc) (S/mm') (S/cc) Notes

04 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8926 -/

05. 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8926.-2

-3 - ------ - - 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 926

07 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 •Y926 -4

0$ 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8926 -i

09 0.0450 0 < 22.24 1500.00 None Detected 0 1) 0.0048 <0.0048 8926 -6

10 0.0048 1800.00 0.0450 0 CHRYSOTILE 0 I 22.24 0.0048 1926 .7

MARK PEYSAKHOV MICHAEL A. GORYCKI. Ph.D. _.... Analyzed by: Approved 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 resoonsible for data reported in structures/mm'. This report may not be reproduced, except in futl, 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 4101187.0. NY State ELAP x0879

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