NYC-WTC_000202838

NYC 9/11 Public Portal Document

ATC Associates 104 East 25 Street, New York, NT 10010 Phone: (212)353-8280 Fax;(212)353-8306

Attn: Benjamin Sallemi Received: 10/1/02 8:00:00 AM ATC Associates Inc. ATC Group #: 8920 104 East 25 th Street Analysis Date: 10/1/02 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 l^olume Analyzed Asb Type(s) 0.5y-5 Sy (S/cc) (S/mm^) (S/cc) Notes

I 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 3920 -I

2 ■ 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 S920

3 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 3920 -5

4 1804.00 0.0450 0 None Detected 0 0 0.0047 <22.24 <0.0047 3920 -

5 ■ 1804.00 0 0450 0 None Detected 0 0 0.0047 <0.0047

MARK PEYSAKHOV MICHAEL A. GORYCKl, Ph.D.

.Analyzed by- Approved by:

Disclaimer: The lacoratory is not responsible for data reported in structures/cc. which is dependent on volume collected by nori-iacorstory personnel. This ladhsTinly responsitie for data reported in structures/mm^ This report may not be reproduced, except in full, without written aoproval by ATC Associates Inc. This .'eport may not be used lo claim product enaorsenent by NVLA.P or any other agency of :he U.S. Government. This repons relates oniy :o the samples reponed above. Quality control data finciuaing 95% confioence limits and laooratory and analysis' accuracy and precision) is available upon repuest

Accredited forNVLAP PLMAEM #101187-0, NY State ELAP #10879

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NYC-WTC_000202838