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NYC-WTC_000177616
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NYC 9/11 Public Portal Document
ATC Environmental, Inc. 104 East 25th Street New York, New York 10010
N.Y.C. Board of Education Approved N.Y. State ELAP #10879 28-11 Queens Plaza North ACCREDITED NVLAP Lab Code # 1187 Long Island City, NY 11101 Report Date: lO/25/Ol
ASBESTOS FIBER ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY (TEM) With Fib€;r Identification by Selected-Area Electron Diffraction (SAED) and Energy-Dispersive X-RAY Spectroscopy (EDS) Method; AHERA Final Rule, EPA Federal Register (40 CFR, Part 763), Vol. 52, No. 210, October 30, 1987
Sample Identification AnaJxsisParaniet^rs
Project/Site •. New Stuyves-ant. U.S., 345 Chambers St., NY, NY TEM Sample No,; 516& 62342 Exterior S Iiiterior of Building &. Roof Date Received: 10/25/01 Grid Openings Analyzed:_ 4
Project Sample No.: 15 Average Grid Opening
Air Volum.5: 1928 liters Total Area Analyzed-. 0.0450 mm2
Filter Ty]>e: MCE 25 mm diarn, Fore Size; 0.45 urn Analytical Sensitivity: 22.2 s/mm2 Effective Area: 385 mm2 C . 0044 s/cc
FIBROUS PARTICULATES ANALYZED Number Observed CONCENTRATION Total Single Matrix Total. Struct. Filter Air Fiber? Bundles Clusters Struct. Struct >=5um Struct/mm2 Struct/cc nqtr,/rri3
Chrysotile; Asbestos 0 0 0 0 0 0 0.0 0,0000 0
Amphibole Asbestos 0 0 0 0 0 0 0.0 0.0000 0
Ambiguous 0 0 0 0 c 0 0.0 c.oooo 0
Total asbestos (includes amticjuous structures) 0 0 0.0 0.0000 c Non-AsbestOS 0 0 0 0 0 0.0 0.0000 N/A No Identif ication 0 0 0 0 0 0.0 0.0000 N/A
Totals (All Structures) 0 0 0.0 0.0000 N/A The estimcted uncertainty of this analysts is 1 standard deviation.
Non-asbestos fiber i.d. (EDS/SAED): None detected Amphibole Asbestos Type; None detected
The Analysis was carried out in accordance with the approved TEM method. This laboratory is in compliance with the quality specified for the method.
Analyzed by: Report Reviewed by:
Michael A. Gorycki, Ph.D. Michael A. Gorycki, Ph.D. Director of Electron Microscopy
CONFIDENTIAL, CITY_21MC100_003473359 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000177616
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NYC-WTC_000177616Source: NYC Law Department, mirrored locally
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