Chain of custody for air samples from 125 Water Street,

NYC 9/11 Public Portal Document

ATC Associates v 104 East 25 Street, New York, NY 10010 Phone:(212)353-S280 Fax:(212)353-8306

Attn: Fred Burkhardt Received: 9%I5'02 7:00:00 AM ATC' Associates Inc. ATC Group #: 8839 104 East 25th Street Analysis Date: 9.16 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

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 Sp (S/cc) (S/mm') (S/cc) Notes

t)' 3050.00 0.0450 0 None Detected 0 0 0.0028 <2 2. 24 <0.0028 •5339 -1 - -

U4 305000 0 0450 0 CHRYSOTILE 2 0 00028 44 48 0 0056 5539 1

5 3050.00 0.0450 0 None Detected 0 0 0.0028 <22.24 <0.002S 5839 -3

06 3050.00 0.0450 0 CHRYSOTILE 2 0 0.0028 44.48 0.0056 3839 -a

U7 3050.00 0.0450 0 CHRYSOTILE 3 I 0.0028 88.97 0.0112 3539 -3

08 3050.00 0.0450 0 CHRYSOTILE I 1 0.0028 44.48 0.0056 S839 -6

09 3050.00 0.0450 0 None Detected 0 0 0.0028 <22.24 <0.0028 '5839 --

ROMAN 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, is lab 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. Dually control data (including 95% confidence limits and laboratory and analysis' accuracy and precision) is available upon request.

Accredited for NVLAP PLMITEM #101187-0. NY State ELAP x10879

Pa,e / oJ'h

NYC-WTC 000129774