Chain of custody for air samples from 125 Water Street,

NYC 9/11 Public Portal Document

S.

ATC Associates • • i

164 East 25 Street, New York, NY 10010 ,Phone: (212) 353-8280 Fax: (212) 353-8306

Attn: Fred Burkhardt Received: 9/18/02 8:00:00 AM • ATC Associates Inc. ATC Group #: 8854

104 East 25th Street Analysis Date: 9/20/02

New York NY 10010 Fax: (212)353-3599 Phone: (212)353-8280

Project: DEP Cleaan-up Project #: 22906-0002 125 Cedar Street, New York, NY

Performed Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) by EPA 40 CFR Part 763 Final Rule (AHERA) Analytical Asbestos Non Asbestos # Structures Sensitivity Concentration Area Type(s) O.Sp-S Sp (S/cc) (S/mm') (S/cc) Notes Sample Volume Analyzed Ash

01 None Detected 0 0 0.0037 <22.24 <0.0037 2300.00 0.0450 0 8854 -1

02 None Detected 0 0 0.0037 <22.24 <0.0037 2300.00 0.0450 0 8854 -2

<0.0037 . 03 0.0450 0 None Detected 0 0 0.0037 <22.24 2300.00 8854 -3

04 0 None Detected 0 0 0.0037 <22.24 <0.0037 2305.00 0.0450 8854 -4

05 0.0450 0 None Detected 0 0 0.0037 <22.24 <0.0037 2305.00 8854 -5

MICHAEL A. GORYCKI, Ph.D. ROMAN PEYSA V proved b Analyzed by:

dependent on volume collected by nonn.laborabo7 personnel. This lab is only responsible Disdainee: The laboratory is not responsible for data reporled in st ueslx. which is written approval by ATC Associates Inc. This report may not be used to dais in Iud, without for data reported in sbuchreslmm'. This report may not be reproduced, exceptThis report relates only to the samples reported above Quality control data (including 95% product endorsement by NVLAP or any other agency of the U.S. Government upon request confidence limit and laboratory and analysis' accuracy and prr ision) is available

Accredited for NVLAP PLMITEM #101187-0, NY State ELAP #10879

Page I ofI

NYC-WTC 000129862