NYC 9/11 Public Portal Document
30 minutes shall be provided. When ducting to the outside is not possible, a second negative pressure
ventilation unit compatible with the primary unit may be cormected in series.
10. All WTC debris shall be misted and double-bagged. Accumulation ofwater is prohibited. Water
misting shall be sufficient to wet the material without water accumulations.
11. After the removal ofdebris, all surfaces will be cleaned in accordance with the procedures specified
in Scope A. After all surfaces have been cleaned, a second cleaning shall be performed. This
results in two full cleanings ofall surfaces, with the following exception. Carpets and fabric covered
furniture cleaned with hot water extraction cleaners shall be cleaned only once. Surfaces include but
are not limited to walls, floors, ceilings, ledges, trims, appliances, equipment and furnishings.
12. EPA, in consultation with the owner, may identify certain furnishings (e.g. carpets and fabric covered
furniture) for disposal rather than cleaning. Disposal ofresidents’ personal property shall not occur
without prior written authorization by EPA and the owner. Disposal ofall wastes generated during
the cleaning shall be the responsibility ofthe contractor. All waste generated shall be treated as
asbestos-containing material (ACM). Transportation and disposal ofgenerated waste shall be in
compliance with all applicable rules and regulations.
13. A Cleaning Checklist (to be developed by EPA) will be completed by the cleaning contractor as
tasks are completed to document the progress of the cleaning.
14. The cleaning contractor shall notify the monitoring contractor immediately upon completion ofthe
cleaning. The Monitoring Contractor will conduct a thorough visual inspection to verify Ihe absence
ofvisible dust accumulations. Ifdust is observed the cleaning contractor will reclean as necessary
at no additional cost.
15. Air sampling shall be performed by the Air Sampling Technician after the area is free of dust
accumulations as determined by the Monitoring Contractor..
16. After successful clearance air monitoring, isolation barriers shall be removed in conjunction with the
use of a HEPA vacuum.
17. Any damage or loss that occurs during cleaning is the responsibility ofthe cleaning contractor. The
cleaning contractor is not responsible for damage or loss caused by the acts of third parties not
involved in the cleaning.
18. All work shall be in compliance with all other applicable requirements ofTitle 15, Chapter 1 ofthe
RCNY and New York Industrial Code Rule 56.
19. Ifmold, suspected ACM or peeling, flaking or chalking paint is observed, the cleaning contractor
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NYC-WTC_000139230
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