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 U Phone:(212)353-8280 Fax:(212)353-8306

Attn: Benjamin Sallemi Received: 9/2702 1 1:00:00 P.M ATC Associates Inc. ATC Group #: 8911 104 East 25th Street Analysis Date: 9/29/02 New York NY 10010 Fax: (212) 353-3599 Phone: (212) 353-8280 Project: DEP Clean-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 :Von Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed -Isb Type(s) 0.)u-5 iu (S/cc) (S%mm-) (S/cc) Notes

I S1)U.00 0.0450 0 None Detected 0 0 0.0045 = 22.24 <0.0048

22 1800.00 00450 0 None Detected 0 0 0.0048 <22.24 <0.0048 89/1 -2

1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 0 8911 -3

4 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 x9// -4

1804.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 89/4 -S

ROMAN PEYSAKHOV MICHAEL A. GORYCKI, Ph.D.

Analyzed by: pproved by:

Disclaimer: The laboratory .s not responsible for data reported in structures/cc. which is dependent on volume col ected by non-laboratory personnel. Th 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 c:aim product endorsement by NVLAP or any other agency of the U.S. Government. This reports relates only to the samples reported above. Duality control data (including 95%

• confloence limits and laboratory and analysis' accuracy and precision) is available upon request.

accredited for NVLAP PLM/TEM X101187.0. NY State ELAP x10879

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