Cover letter and summary of ambient air sampling and cleanup activities at 400 Chambers Street from 2002.
NYC-WTC_000102767–000102875Folder label: “400 CHAMBERS STREET Block: 16 Lot: 200 BIN: 1085774 Tribeca Park, 34 River Terrace”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Tribeca Park — 400 Chambers Street ATC Project No.: 09622-0012 Related Management Company, L.P. February 15, 2002 Page 7
Airborne Metals One common area and nine residential units were sampled for and analyzed for airborne metals All recorded analytical results were less than analytical detection.
Duct and Exterior Cleaning TechClean Industries cleaned the air duct of the building. This cleaning included removal and reinstallation after wet cleaning of the grills and registers and High Efficiency Particulate Air (HEPA) vacuuming and washing of the induction fan supplying the systems. The risers were cleaned in phases by sealing diffusers with plastic sheeting and tape, deploying isolation bags to assist in controlling negative pressure, HEPA negative exhaust equipment and various pneumatic agitation devices. The work commenced from the upper most floor and worked towards the mechanical room Arcade Contracting cleaned exterior surfaces of the building. This cleaning included High Efficiency Particulate Air (HEPA) vacuuming of exterior ledges and window tracks and pressure washing of exterior surfaces. Following exterior cleaning activities all windows were washed.
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NYC-WTC 000102775
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machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
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