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← Document results/DEP Box 37/250 BROADWAY; Block: 124 Lot: 24 BIN: 1001408 245 Broadway, 2-4 Murray St. 1-7 Park Pl, 239- 247 Broadway
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Asbestos TEM analysis results, 250 Broadway, Sept 2001

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Summary of transmission electron microscopy results for asbestos samples from 250 Broadway dated September 16, 2001.

NYC-WTC_000105975–000105987

Folder label: “250 BROADWAY; Block: 124 Lot: 24 BIN: 1001408 245 Broadway, 2-4 Murray St. 1-7 Park Pl, 239- 247 Broadway

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NYC 9/11 Public Portal Document

10/01/2001 10:41 FAX 212 353 8306 ATC l 012/020

ATC Environmental, Inc. 104 East 25th Street New York, New York 10010 Approved N.Y. State FLAP #10879 N.Y.C. Housing Authority ACCREDITED NVLAP Lab Code # 1187 250 Broadway, 16th Floor Report Date: 09/16/01 New York, NY 10007 ELECTRON MICROSrOPY (TENI ASBESTOS FIBER ANALYSIS BY TRANSMISSION Energy-Di3Persive X-RAY Spectroscopy (IDS) Selected~Ares Electron Diffraction (SAID) and With Fiber Identi.ficatiou by 1987 Vol. 52, No. 210. Octobar 30, Method: APZ2A Final Rule, EPA Po-eral Regis.er (40 CPR, Part 763).

r,,....,. Td utification Pna3,ysx Parameters

59081 TEM Sample No.- 5512 - project/Site: 250 BrOadw;j y, Ny, NY 31 27, 19 9 Grid 0pe0.ings Analyzeds 4 Date Received: 01

Average Grid Opening: 106.00 um Prefect Sample Ne.:0

Total Area Analyzed& 0.0450 smn2 Air Vo1u+~e: 1800 litorr,

Analytical Sonsitivity: 22.2 s u 3 Filter Types,MCE 25 mm dia's. • Pore Sizes 0.4i 0.0048 *Lee Effective Area:_385 rG2

-----------------------------------------------------------------~ FIBROUS PARTICULATES ANALYZED CONCENTRATION 0 er Observed Total Matrix Total. struct. Filter Air single m3 ,=sum struct =2 struct cc Fibers Pvndles Clusters Shrut. Struct.

0.0 0.0000 0 0 0 0 0 0 chrysotile Asbestos 0

0.0 0.0000 0 D 0 0 0 Amphibole Asbestos 0 0

0.0 0.0000 0 0 0 0 0 0 Asmbiguous 0

0 0.0 0.0000 0 0 Total asbestos (includes ambiguous structures) 0.0000 N/A 0 0 0 0.0 Non-Asbestos 0 0 0 0.0 0.0000 N/A 0 0 0 0 0 No Identification 0

0.0 0.0000 N/A 0 0 Totals (All Structures deviation. The estimated uAcertainty of this analysis is 1 standard

detected Non-asbestos fiber i.d.---(EDS/SHED): None Amphibole Asbestos Type: None detected ----------------------------- with the approved TEM method. The Analysis was carried out in accordancequality specified for the methc This laboratory is in compliance with the

Analyzed by: Report Reviewed by:

Michael A. Gorycki, Ph.D. Roman PeysakhQv Director Of Electron Microscopy

NYC-WTC 000105983

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NYC-WTC_000105983Source: NYC Law Department, mirrored locally

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