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 Ph (212) 353-8280 Fax: (212) 353-8306 avv7TO Attn: Fred Burkhardt Received: 9/14/02 3:00:00 AM ATC Associates Inc. ATC Group #: 8835 104 East 25th Street Analysis Date: 9/15/02 New York NY 10010

Fax: (212)353-3599 Phone: (212)353-8280 Project: DEP Cleaan-up Project #: 22906-0002 125 Cedar Street

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 5p (S/cc) (S/mm') (S/cc) Notes

03 2400.00 0.0450 0 None Detected 0 0 0.0036 <22.24 <0.0036 8835 -I

04 2400.00 0.0450 0 None Detected 0 0 0.0036 <22.24 <0.0036 8&t5 -2

5 2400.00 0.0450 0 None Detected 0 0 0.0036 <22.24 <0.0036 35 -3

06 2400.00 0.0450 0 None Detected 0 0 0.0036 <22.24 <0.0036 &535 -a

It' 2400 00 0.0450 0 None Detected 0 0 0 0036 < 22.24 <0 0036 a:i t5 -5

08 2400.00 0.0450 0 None Detected 0 0 0.0036 <22.24 x.0.0036 8&15 -6

09 2400.00 0.0450 0 None Detected 0 0 0.0036 <22.24 <0.0036 5835 -

MICHAEL A. GORYCKI, Ph.D. MARK PEYSAKHOV 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 tab is 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'-0 confidence limits and laboratory and analysis- accuracy and precision) is available upon reduesl.

Accredited for NVLAP PLMITEM #101187.0. NY State ELAP x10879

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NYC-WTC 000129734