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NYC-WTC_000205138

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NYC 9/11 Public Portal Document

AMBIENT OUP, INC. 10 MC -AVENUE GLEN COVE, NY 11542 :z 1

DUST CHARACTERIZATION LABORATORY DATA REPORT I ro CZ! PROJECT ID; 211453 DATE COLLECTED; 9/27/2001 ro CUENT: CUSHMAN & V/AKEFiELD, INC. DATE RECEIVED; 9/28/2001 LOCATION: 130 LIBERTY STREET DATE ANALYZED; 9/29/2001 g TECHNICIAN: JOHN LEITNER

RELD ID SAMPLE PERCENT OF co LABORATORY ID DESCRIPTION CONSTITUENTS SAMPLE “ 3=

211453-28 STH FLOOR: MER CELLULOSE lb.0% D827O2 FIBER GLASS 50.0% GRAVEL ROAD DUST 19.0% CARBON PARTICLES 10.0% chrysotile 6.0% TOTAL 100.0%

211453-29 STH FLOOR; ADJACENT TO "A" STAIRWAY FOR MER CELLULOSE 15.0% DB2703 FIBER GLASS 45.0% GRAVEL ROAD DUST 20.0% CARBON PARTICLES 18.0% CHRYSOTILE 2.0% ■^OTAL 100.0%

211453-30 5TH FLOOR: MER CHILLERS CELLULOSE 1 5.0% DB2704 FIBER GLASS 45.0% GRAVEL ROAD DUST 25.0% CARBON PARTICLES 1 5.0% z; CHRYSOTILE TRACE o TOTAL 100.0%

o Signed for Ambient Group Inc. by, K I to

o TAREK FATA o o ND = Mana Dotacted, NA — No! Arralyied, Hiersars IWO tZl typsi o( dust EaB'Pl^ sBtiminsd fol analysis; Sanlad = Samplas submirtsd on lapfc'butV. Aiiborno = Samplas submitiad I in Air.o-Call Cassettes. Afi raauits dsclo&ed in this lepsrt ralata only to the items .tssied. No reproduction of all or any poriion oi this report shall osour wiii.out wnrton approval o o of Ambiant Group Inc. Unless olhaiwiso directed by tits aiertt, AmtileM GroWnc. v4H ratain Iha oainplss l«lad in this report (or fivu 151 days, aftti wIcCU limo they may bo dispoasd co of in acGurc'ance with appriEabls reguJatioeis. to cn co its on ■ it.

NYC-WTC_000205138

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NYC-WTC_000205138Source: NYC Law Department, mirrored locally

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

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