NYC 9/11 Public Portal Document
•a~/ mkt/ 2 E~2 1 :23 2124838895 CRG
PACE 14
Building Facade Clean-nip
Work shall be perforated by
a NYSDOL licensed asbestos
asbestos certified workers. contractor with NYCDEP and NYSDOL
The contractor performing
the cleaning should be
experienced in cleaning building facades
The clean up area shall be
specified ("specified area") by DEP.
be covered with a layer of The area below the facade cleaning
polyethylene sheeting. All debris must be shall
directly upon removal from the collected for disposal as ACM
surface, (i.e. All waste must be
bags.) Running water or double bagged in ACM waste labeled
water runoff on the building facade is
not permitted.
Building occupants shall be notified
prior to the facade cleaning,
cleaning shall be restricted and
m,kaed with caution tape. Cleaning shall
speeds greater than 20 mph. not be performed duringawind
All LEIVAC systems and air
.conditioners shall be turned offI All
cleaning of the building. Some winnows shall be closed during the
air conditioners and windows
prevent water penetration. may require sealing with duct tape
to
In cases where ui meat
is ri aed from the roof:
completed prior to rigging equipment All clean-up activities on the
from the roof. roof must be
All horizontal surfaces and
all windows on the facade
and hand brushing or shall be cleaned of large bulk
scraping with non-metallic bristle material by wetting
and/ or by HEPA vacuuming brushes or non-metallic scrapers, by wet
from top to bottom. Only wiping
pressure washing. Detergents, water shall be used for wet wiping
solvents, additives, and any other and Iow-
The removed material shall be chemical clearing agents are prohibited.
immediately placed into containers
wiped. Free running water shall (e.g. bags). Windows shall be
not be evident during this wet
supplied through ground fault procedure. Power for HEPA vacuums
interntgters. shall be
Mier completion of debris removal,
the specified area shall be
technique, moving from top to carefully washed. A low pressure
bottom, shall be employed to minimize washing
be washed with a water bounce-back. Facades shall
low-pressure wash not to exceed 250 psi,
At the completion of work, a
visual
verift the absence of visible debris. inspection of the abated surfaces and sidewalk shall be performed to
Air monitoring shall be
performed by an independent
with certified workers. NYSDOL licensed third party air
monitoring f rm
In order to minimize
disruption to the public and to the
be performed during off building occupants, it is recommended
hours. this work
Page 5
05/03/02
NYC-WTC 000118396
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