Current through Register Vol. 46, No. 12, March 20, 2024
(a) Air sampling
and analysis. Air sampling and analysis on a minor asbestos project or minor
size regulated abatement work area conducted under this section shall be
conducted in accordance with the requirements of Subpart 56-4 of this
Part.
(b) Where allowed. For
asbestos projects or regulated abatement work areas with abatement of less than
or equal to 10 square feet or 25 linear feet of ACM, PACM or asbestos material,
Phase II minor asbestos project abatement procedures as per this section may be
complied with in lieu of full compliance with Subparts 56-7 through 56-9 of
this Part. All other requirements of this Part shall apply. Minor asbestos
project corrective actions shall include limited enclosure, spot
repair/patching, incidental disturbance clean-up, spot removal, and spot
encapsulation. All corrective actions except spot removal shall be performed
using non-asbestos material. Repairs where spot removal has occurred shall also
utilize non-asbestos material. The regulated abatement work area shall be
established as per the requirements of section
56-7.4
of this Part.
(c) Ventilation for
power tools. Power tools used to drill, cut, or otherwise disturb asbestos
material in minor size regulated abatement work areas, shall be manufacturer
equipped with HEPA-filtered local exhaust ventilation.
(d) Glovebag use. Glovebag operations shall
be performed within negative pressure tent enclosures, and shall utilize
commercially available glovebags of at least six mil, transparent plastic and
no larger than needed. See section
56-7.11
of this Part regarding tent construction and section
56-8.4
of this Part regarding proper glovebag procedures. For an isolated event
necessary for repair associated with normal operations and maintenance
activities, a single glovebag operation may be performed without a negative
pressure tent enclosure.
(e) Tent
use. Tents may be used to perform minor size asbestos abatement, with or
without the use of glovebags. Commercially available tents with floors, walls
and ceilings of at least one layer six mil, fire-retardant plastic or a
constructed tent per section
56-7.11(f)(1)
of this Part may be used. When utilizing a tent for minor size asbestos
projects, the following shall be required:
(1) Personal/equipment decontamination room
or area. An existing room or area that is adjacent to the regulated abatement
work area shall be used for the decontamination of personnel and equipment. The
room or area shall be covered by an impermeable dropcloth on the floor or
horizontal working surface. The room or area must be of sufficient size to
accommodate cleaning of equipment and removing personal protective equipment.
Work clothing must be cleaned with a HEPA vacuum before it is removed. All
equipment and surfaces of asbestos waste bags/containers must be cleaned prior
to removing them from the decontamination room or area. All personnel must
enter and exit the regulated abatement work area through the decontamination
room or area.
(2) Personal
protective equipment. All persons shall don appropriate personal protective
equipment before entering the tent in compliance with current OSHA regulations.
Authorized visitors entering the tent shall also don NIOSH-approved respiratory
protection.
(3) Exhausting the
tent. A HEPA-vacuum or other negative pressure HEPA-filtered ventilation
equipment shall be used to continuously exhaust the tent in accordance with
sections
56-7.8(a)
and
56-7.11(f)(1)
of this Part.
(4) Amended water.
All material to be removed shall be saturated with amended water as specified
in this Part.
(5) Abatement
procedures. Asbestos material shall be removed and sealed in plastic bags prior
to removal from tent. Edges of asbestos material remaining shall be
encapsulated or sealed with wettable cloth.
(6) Sealing of surfaces and edges. The
substrate from which asbestos was removed and any exposed edges shall be sealed
with encapsulant.
(7) Clean up.
Cleanup shall be accomplished as follows:
(i)
Method. All accumulations of asbestos waste material shall be containerized and
removed. HEPA-vacuums shall be used to clean all surfaces after gross
cleanup.
(ii) Removal of
contaminated equipment and waste. Contaminated equipment and all containerized
waste shall be removed from the regulated abatement work area.
(iii) Cleanup of surfaces. All surfaces in
the regulated abatement work area shall be wet- cleaned using rags, mops or
sponges.
(iv) Waiting period.
Negative pressure HEPA-ventilated air equipment shall be operated for a minimum
of 20 minutes following completion of final wet cleaning.
(8) Visual inspection. Once final cleaning is
complete, a visual inspection shall be completed by the supervisor to confirm
that the scope of abatement work for the asbestos project is complete, and no
visible debris/residue, pools of liquid, or condensation remain.
(9) Removal of personal protective equipment.
The worker's disposable protective clothing shall be removed and left in the
tent upon exiting.
(10) Exiting
procedures. After exiting the tent, workers shall immediately don clean
protective clothing. Workers shall then seal the tent exit and, upon tent
collapse, shut down the HEPA-vacuum.
(11) Collapsing and containerizing the tent.
The plastic sheeting which formed the tent, and the contents thereof, shall be
fully collapsed, starting from the top and working downward. The tent and
contents shall be placed in at least a six mil plastic bag or hardwall
container, sealed airtight with duct tape and removed for disposal.
(12) Showering. Workers shall proceed
immediately to a shower for decontamination.
(13) Failure. Actions to be taken in the
event of loss of tent integrity are detailed within section
56-8.4(j)
of this Part.