NYC 9/11 Public Portal Document
F11 Cleaning Procedures
For
114 Liberty Street
a) Tenants and/or owner shall identify items for cleaning with clearly legible tags. Tenants
and/or owner, as applicable, shall make the final decision on cleaning or disposal of items.
Items shall be cleaned by wet wiping and/or HEPA vacuuming procedures, as appropriate.
Compressed dry air (low pressure) may be used to blow debris/dust from
openings/crevices in the items. HEPA vacuuming must be preformed in conjunction with
this procedure. Care must be taken not to damage the items.
b) Items identified for disposal (untagged) shall be double-wrapped in 6-mil polyethylene
sheeting and labeled as ACM waste or bagged in labeled ACM waste bags. The cleaning
of items to be disposed is not required.
c) Built-in items, if present, shall be wet wiped and HEPA vacuumed. The contractor shall
be responsible for moving built in items that may impede access to surfaces that require
clean up. However, the cleaning contractor is not responsible for the reinstallation of said
items or any damage related to the removal of built-in items. Care shall be taken not to
damage the items whenever possible.
d) Kitchen stoves, refrigerators, dishwashers, etc. shall be wet wiped and HEPA vacuumed,
and shall remain in the units. The surfaces beneath the appliances shall be cleaned in
accordance with procedures specified in this scope of work whenever possible without
causing damage to cabinets or appliances.
(16) The Central HVAC System shall be cleaned in accordance with the specifications for HVAC
System cleaning attached.
(17) All equipment used for cleaning activities shall be vacuumed and/or wet wiped prior to removal
from the work area.
(18) The project monitor shall perform a thorough visual inspection to verify the absence of visual dust
accumulations. Additional clean-up procedures shall be performed where visible dust is observed.
(19) Upon successful visual inspection, the work area shall be isolated from the remainder of the work
site pending clearance air monitoring. Clearance air monitoring shall be performed after completion
of all clean up activities at the work site.
(20) The Air Sampling Technician shall perform air sampling after the area is free of dust accumulations
as determined by the Project Monitor. The apartment will be re-cleaned and retested if the clearance
criteria are not achieved. The clearance air monitoring criteria have been established by the USEPA
for this clean up activity (WTC Vicinity). The monitoring contractor shall also collect wipe samples
for metals. Refer to the monitoring specification for this information.
(21) After successful clearance air monitoring, isolation barriers shall be removed in accordance with the
applicable requirements of Title 15, Chapter 1 of the RCNY.
(22) The cleaning contractor is not responsible for damage or loss caused by the acts of parties not
involved with the cleanup. Tenant shall be responsible for the removal of any valuables. If such
removal is not feasible, the tenant shall notify the Project Monitor in writing (including original
receipt, formal appraisal, or estimated value) as to the location, description and value of said item.
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NYC-WTC 000100855
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