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Background sampling chain of custody, 250 Broadway, Sept 2001

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Chain of custody documentation for background sampling including asbestos and lead at 250 Broadway in September 2001.

NYC-WTC_000106077–000106100

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 Q 009r02:

ATC Environmental, Inc. 104 East 25th Street New York, New York 10010

N.Y.C. Housing Authority Approved N.Y. State ELAP #10879 ACCREDITED 1'VLAP Lab Code 118- 250 Broadway, 16th Floor New York, NY 10007 Report Date: 09/16/01 TEM BESTOS FIBER ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY and Bnce9y-Dispor0ive x-3AY spectroscopy (EDSi With Fiber Idcnti_ication by Salected-Ares Electron Diffraction (s...% I Part 763), Vvl. 52, No, 210, Octobor 30, 1987 r)othod: ABSRA Firs}. Rule, EPA Federal Ncgister (40 CFR,

$ample IdentificutI, j%nmlvsis Pa1-amc? r-^•

TEM Sample 140.:_5512 - 59078 Frojoct/Site: 250 Arcadwa Ore 31 7 9 6 Date Receivcdt-09/16/01 Grid Openings Analyzed:4

Project saaple ao., 04 Average Grid Openingir106.00 um

Aix Volumo: 1800 liters Total Ares Analyzedt 0.0450 mm2

Pilfer Type: MCE 2S eta diam.• For. Size: 0.45 um Analytical Eensit3.vity:- 22.2 3/aan2 EEfcctive Area: 385 mm2 0.0048 8/00

--------------------------------------------------------------------------------------------------------------------------- FIBROUS PARTICULATES ANALYZED 1Sumber observed CONCENTRATION Total Single Matrix Total. Struct. Filter Air PibnrC Bundles Clusters Struct. Struct. a-Sur Struct wn2 Struct/co ncm/33

Chryaotilo Asbootoa 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 a a 0 0 0 0 0.0 0.0000 0

Total asbestos (inclvde3 ambiguous atructvrc3) 0 0 0.0 0.0000 0 Non-Asbeetoa 0 0 0 0 0 0.0 0.0030 N/A 0 0 0 0 0 0 0.0 0.0000 N/A No Idontification 0

0 0 0.0 0.0000 N/A Totals (Ali Structurca) The cotimated uncertainty of thin analysis 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 methoG- This laboratory is in compliance with the quality specified for the mew

Analyzed by: Report Reviewed by:

Roman Peysakhov Michael A. Gorycki, Ph.D. Director of Electron Microscopy

NYC-WTC 000106083

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NYC-WTC_000106083Source: NYC Law Department, mirrored locally

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