NYC 9/11 Public Portal Document
10/01/2001 10:41 FAX 212 353 8306 ATC l 012/021
ATC Environmental, Inc.
104 East 25th Street
New York, New York 10010
N.Y.C. Housing Authority Approved N.Y. State SLAP #10879
250 Broadway, 16th Floor ACCREDITED NVLAP Lab Code # 118i
New York, NY 10007 Report Date: 09/16/01
ASBESTOS FIBER)NALYSIS BY TRANSMISSION ELECTRON MICROSCOPY (TEM1
X-RAY Spectroscopy (SOS)
with Fiber Identification by Selected-A-ea Electron Diffraction (sr~) and Energy-Dispersive
Methods A 2A Final Rule, EPA Peferal Register (40 CPR, Part 763), Vol. 52, No. 210, October 30, 1987
Bans'e Identification Analy9jn Pa.:aceters
Project/Site: 350Broadway. NY, NY 'rru Sample No.: 5512 - 89081
Floors 31. 27, 19. S
Date Recciveds 09/16/01 Grid Openings Analyzeds 4
Project Sample No.: 07 Average Grid Opening: 106.00 we
Air Volutes1800 litcrs3 Total Area Analyzed, 0.0450 aaa2
Filter Types MCE 25 run diam., Pore Sizes 0.45 r.) Analytical 8oneitivitys 22.2 a/sons
Effootive Area: 395 mm2 0.0048 A/cc
FIBROUS PARTICULATES ANALYZED
Number Observed CONCENTRATION
Total
single Matrix Total. Struct. Filter Air
Fibers Bundles Clusters Struct. Struct. a=Sum Struct/ami2 Struet/ce nam/ass
thryeotile Asbecton 0 a 0 0 C 0 0.0 0.0000 0
Amphibole A:bestoa 0 0 0 0 C 0 0.0 0.0000 0
a 0 0 0 0 0 0.0 0.0000 0
Total eabestoc (includes esbiguous strvc:crea) 0 0 0.0 0.0000 0
Non-Asbestos 0 0 0 0 0 0 0.0 0.0000 N/A
No Identification 0 0 0 0 0 0 0.0 0.0000 N/A
Totals (A11 Structures) 0 0 0.0 0.0000 N/A
The estimated uncertainty of this analysis in 1 standard dcviaticn.
Non-asbestos fiber 1.d. (EDS/SAED): None detected
Amphibole Asbestos Type: None detected
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The Analysis was carried out in accordance with the approved TEM method.
This laboratory is in compliance with the quality specified for the meth
Analyzed by: Report Reviewed by:
Roman Peysakhov Michael A. Gorycki, Ph.D.
Director of Electron Microscopy
NYC-WTC 000106086
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