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← Document results/DEP Box 51/105 DUANE STREET Block: 151 Lot: 1 BIN: 1001650 10-16 THOMAS ST1 TRIMBLE ST., TRIBECA TOWER
Document / 42 pages

Fax cover sheet, 105 Duane Street site file

Machine-extracted title · confidence 90%

Cover sheet for a fax transmission from DEP regarding the 105 Duane Street site file.

NYC-WTC_000125801–000125842

Folder label: “105 DUANE STREET Block: 151 Lot: 1 BIN: 1001650 10-16 THOMAS ST1 TRIMBLE ST., TRIBECA TOWER

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Scanned page image, NYC-WTC_000125805
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NYC 9/11 Public Portal Document

(Page 5 of 7)

DEC-12-2@€'l i7: 7 N'TC

contamiMtion of building The ASTM method is intended for guidance on examining dust suggestion surfaces and is intended u a general assessment of the building. There is no asbestos in the AS'":V: method that it can be used to assess general health risk from exposure. nor does it suggest that all buulding susø-ees be maintained to the levels published in the standard. The method is generlly applicable for the esoniate of the per conce tb don of asbestos fibers or surfaces starttag from approximately 1000 fibers square coatimetar(f/cm2) determine On December 3M two surface dust samples wens talcsn from the 106floor to asbestos whether asbestos fibers were settled on surtbocs. The results are reported in fibers per square oendmeter of surfac,tested. The following $> fl1DW ze$ the sample results:

Sau,plc C620204 sampled in living roam from table tap Result.740 asbestos sulaaturse per square centimeter

Samp10 E1203-2 sampled from supply air diffuser in the 104'floor public hallway. Result -S50.000 asbestos smeoz'es per square centimeter

fibers The supply air grille in the hallway was found to have elevated levels ofasbestos well above_ the teoowmeadad Bruit of 1000 stt+teturos per square centimeter. This suggests That the venbladan system was cotsminsted by asbestos when the building collapsed.

The duct system should be dossed by a profesaionel duct cleaning ComPaay using vacuum and cleaning equipment designed asbestos deoantnaainadart. for

Sin y,

Edward Olmsted

12/11/01 TUB 14:05 ITX/RY NA AORA(PI AA% DEC-12-2001 17121 1212 637 3561 LWNYC0308310

NYC-WTC 000125805

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NYC-WTC_000125805Source: NYC Law Department, mirrored locally

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