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Dust Characterization Laboratory Data Report, September 2001

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Laboratory data report from Ambient Dust Inc. regarding dust characterization samples collected on September 27, 2001.

NYC-WTC_000182141
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NYC 9/11 Public Portal Document

AMBIENT lUP, lINC. 10 MOI AVENUE GLEN COVE, NY 11542 cz: I DUST CHARACTERIZATION LABORATORY DATA REPORT rZD I PO PROJECT ID: 211453 DATE COLLECTED: 9/27/2001 <zz> PO CLIENT: CUSHMAN St WAKEFIELD, INC. DATE RECEIVED: 9/28/2001 LOCATION: 130 LIBERTY STREET DATE ANALYZED: 9/29/2001 g TECHNICIAN; JOHN LEITNER <33 tn FIELD ID SAMPLE PERCENT OF LABORATORY ID DESCRIPTION CONSTITUENTS SAMPLE '•

211453-13 3RD FLOOR: WEST MIDDLE CELLULOSE 1 5.0% DB2687 FIBER GLASS 45.0% GRAVEL ROAD DUST 20.0% CARBON PARTICLES 18.0% CHRYSOTILE 2.0% TOTAL 100.0%

211453-14 4TH FLOOR: WEST, CAFETERIA CELLULOSE 15.0% DB26B8 FIBER GLASS 40-0% GRAVEL ROAD DUST 30.0% CARBON PARTICLES 13.0% CHRYSOTILE 2.0% TOTAL 100.0%

21 1453-15 4TH FLOOR: NORTHWEST CELLULOSE 1 5.0% DB2689 FIBER GLASS 45.0% GRAVEL ROAD DUST 20.0% CARBON PARTICLES I 8,0% =2 CHRYSOTILE 2.OY, TOTAL WO.0%

o H H Signed (or Ambient Group Inc. by. ttr

TAREK FATA o

1 ND = Ngiw ORlrcietJ. NA = Not Analyie,!, IUfir sib iwn (71 oF cF'jst sampla submirtetl Io, analysis: Saiitad = Samples submltled on Fape/bult. A,,bo,ne = Samples scbrniued o in Air-O-Cell Cassettes. All resuFIs discfosed in (his report relate only (a the items rested. Mo reproducliora of ail or any ponton of this report shall occur whhoot written approval O' o o( Ambrenl Group Inc. Unless otherwise tfteclod by the Clianl. Ambient Gloup Inc. will retain the .samples listed tn this report (or live (5) days, alter whid, limo they may tw disposed of in accordatica with applicable regulations. o o o co o

NYC-WTC_000182141

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NYC-WTC_000182141Source: NYC Law Department, mirrored locally

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