NYCDEP and NYSDOL
Work shall be performed by a NYSDOL licensed asbestos contractor with
asbestos certified workers.
building facades.
The contractor performing the cleaning should be experienced in cleaning
below the facade cleaning shall
The clean up area shall be specified ("specified area") by DEP. The area
must be collected for disposal as ACM
be covered with a layer of polyethylene sheeting. All debris
ACM waste labeled
directly upon removal from the surface. (i.e. All waste must be double bagged in
bags.) Running water or water runoff the building facade is not permitted.
on
street below the facade
Building occupants shall be notified prior to the facade cleaning. Access to the
Cleaning shall not be performed during wind
cleaning shall be restricted and marked with caution tape.
speeds greater than 20 mph.
shall be closed during the
All HVAC systems and air conditioners shall be turned off. All windows
sealing with duct tape to
cleaning of the building. Some air conditioners and windows may require
prevent water penetration.
on the roof must be
In cases where equipment is rigged from the roof: All clean-up activities
completed prior to rigging equipment from the roof.
large bulk material by wetting
All horizontal surfaces and all windows on the facade shall be cleaned of
non-metallic scrapers, by wet wiping
and hand brushing or scraping with non-metallic bristle brushes or
used for wet wiping and low-
and/ or by HEPA vacuuming from top to bottom. Only water shall be
agents are prohibited.
pressure washing. Detergents, solvents, additives, and any other chemical cleaning
containers (e.g. bags). Windows shall be wet
The removed material shall be immediately placed into vacuums shall be
for HEPA
wiped. Free running water shall not be evident during this procedure. Power
supplied through ground fault interrupters.
washed. A low pressure washing
After completion of debris removal, the specified area shall be carefully
bounce-back. Facades shall
technique, moving from top to bottom, shall be employed to minimize water
be washed with a low-pressure wash not to exceed 250 psi.
sidewalk shall be performed to
At the completion of work, a visual inspection of the abated surfaces and
verify the absence of visible debris.
third party air monitoring fine
Air monitoring shall be performed by an independent NYSDOL licensed
with certified workers.
occupants, it is recommended this work
In order to minimize disruption to the public and to the building
be performed during off-hours.
Page 5
05/03/02
NYC-WTC 000115350
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000115350Source: NYC Law Department, mirrored locally