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 Pione:(212) 353-8230 Fax:(212)353-S306

Attn: Fred Burkhardt Received: 9/21/02 3:00:00 AM ATC Associates Inc. ATC Group #: 8871 104 East 25th Street Analysis Date: 9/23/02 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 Non Asbestos # Structures Sensitivity Concentration Sample Volume Analyzed .4sb Type(s) O.5:-5 5u (S/cc) (S/mnr') (S/cc) iVotes

111 1800 00 0.0450 0 None Detected 0 0 0.0048 <22 24 <0.U04S bJ 7r .1

02 IS00.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8871 -2 —

3 1804.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047

04 1804.00 0.0450 0 None Detected 0 < 22.24 0 0.0047 <0.0047 3871 .4

05 1804.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 3S't -5

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D Analyzed by: provekby:

Disclaimer The laboratory is not responsible for data reported in structures/cc, which is dependent on volume col ted by non-laboratory personnel. This la Iy 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 reouest

Accreditea for NVLAP PLWUTEM 9101:8'.0, NY State ELAP #10879

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NYC-WTC 000129856