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 V Phone: (2 12) 353-8280 Fax: (212) 353-8306

Attn: Benjamin Sallemi Received: 10/8/02 11:00:00 AM ATC Associates Inc. ATC Group #: 8942 104 East 25th Street Analysis Date: 10/8/02 • New York NY 10010 Fax: (212)353-3599 Phone: (212)353-8280 • Project: DEP Clean-up ATC Project #: 22906-0002

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 Analysed Asb Type(s) 0.Sµ-S Sµ (S/cc) (S/mm') (S/cc) Notes

04 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8942 -1

05 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 < 0.0048 8942 -2

06 1800.00 0.0450 0 NoneDetected 0 0 0.0048 <22.24 <0.0048 -3 •9t' 07 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8942 -4

08 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8942 -5

09 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8942 -6

10 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 894' -7

MARK PEYSAKHOV MICHAEL A. GORYCKI, Ph.D

Analyzed by proved by

Disgllaimer. The laboratory is not responsible for data reported in structures/cc, which is dependent on volume co/e~~by boratory personnel. This only responsible for data reported in stnictures/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 request

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

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