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 ~., Phone: (212) 353-82S0 Fax: (212) 353-8306

Attn: Fred Burkhardt Received: 9/20/02 8:00:00 AM ATC Associates Inc. ATC Group #: 8864 104 East 25th Street Analysis Date: 9/22/02 New York NY 10010

Fax: (212)353-3599 Phone: (212)353-8280

Project: [)EP Cleaan-up Project 4: 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) 0.5u-5 5µ (S/cc) (S/mm' (S/cc) Notes

03 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 3864 -I

04. 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8864 -2

Sr 64 -3 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048

06 1800.00 0.0450 0 None Detected 0 0 0.0048 <22.24 <0.0048 8564 -4

•07 1800.00 0.0450 0 None Detected 0 0 0.0048 < 22.24 < 0.0048 3864 -5

MICHAEL A. GORYCKI. Ph.D. ROMAN PEYSAKH V Analyzed by• f/"i?. `" proved by:

,Disclaimer The laboratory is not responsible 'or data reported in structures/cc. which is dependent on volume col/ctedb •laboratory personnel. This la only responsible for data reported in structureslmm-. This report may not be reproduced. except in full, without written approval by ATC Associates Inc. This report may not 5e used to claim proauct 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 PLMITEM X101187-0. NY State ELAP #10879

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