Chain of custody for asbestos air samples, Sept 2002

NYC 9/11 Public Portal Document

ATC Associates 104 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#: 8853 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

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 ConceutratioH Sample Volume Analyzed Asb Typefs) o.Sp-S Sp (S/cc) (S/mne) (S/cc) Notes

03 2100.00 0.0450 0 None Detected 0 0 0.0041 <22.24 <0.0041 8853 -I

04 2100.00 0.0450 0 None Detected 0 0 0.0041 <22.24 <0.0041 ,5833 -2

05' 2105.00 0.0450 0 None Detected 0 0 0.0041 <22.24 <0.0041 8i53 -3

06 2100.00 0.0450 0 CHRYSOTILE 1 0 0.0041 22.24 0.0041 83S3 -4

P7 2105.00 0.0450 0 NoneDetected 0 0 0.0041 <22.24 <0.0041 ^53 -5 i

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I ROMAN PEYSAKHOV MICHAEL A. GORYCKI, Ph.D. 'Analyzed by: ived by:

Disdalmer The laboratny is not lesponsiUe for data reported ki sinicturesfoc, which is dependent on wkme eo*ec4d by noiHabonkiiy pereorviel. TNsW^on^responsible for (Mb reported in sbucluiesfom*. This report may not be reproduced, except in Ml, wNhotd nntten approval by ATC AasocialBS Inc. TNe report may not be used to ciaim 2 produa endorsement by MVLAP or any other agency of the U.S. Gowmment TIM reports retatas only to the samples leportad abrwe Quality ocnlml data (InrdiKflng 95* , confidence limits and laboratory and alalysis'accuracy and precision) is available ilpooferxjeet ■ >1 Accredited forNVLAP PLMTEM #10118743, NY State ELAP #10879

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CONFIDENTIAL, CITY_21MC100_003446568 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000177499