Signs shall be posted which meet the
specifications set forth in
all approaches to the work area. Signs shall be posted a sufficient distance
from the work area to permit a person to read the sign and take precautionary
measures to avoid exposure to asbestos.
(b) The facility heating, ventilating and air
conditioning (HVAC) systems within the asbestos abatement work area shall be
shut down, locked out and isolated to prevent contamination of and fiber
dispersal to other areas of the facility.
(c) The work area shall be isolated from
non-work areas by air-tight barriers attached securely in place. All openings
between the work area and non-work areas including but not limited to windows,
doorways, elevator openings, corridor entrances, ventilation openings, drains,
ducts, grills, grates, diffusers and skylights, shall be sealed airtight with 6
mil polyethylene sheeting.
movable objects which can be removed from the work area shall be removed.
Cleaning of contaminated items shall be performed if the item is to be salvaged
or reused. Otherwise the item shall be properly disposed of as asbestos waste.
All non-movable objects in the work area shall be covered with a minimum of 6
mil polyethylene sheeting secured in place.
(e) Floor and wall surfaces in the work area
shall be covered with polyethylene sheeting or equivalent. All seams and joints
shall be sealed with tape or equivalent. Floor covering shall consist of at
least two layers of 6 mil polyethylene and must cover at least the bottom 12
inches of adjoining wall. Wall covering shall consist of a minimum of two
layers of 4 mil polyethylene sheet which shall overlap the floor covering to
prevent leaks. There shall be no seams in the polyethylene sheet at the
(f) Work area
access shall be restricted to authorized personnel afforded proper respiratory
protection and protective clothing.
(g) Clean-up procedures shall involve high
efficiency particulate air (HEPA) filtration and wet cleaning techniques.
Amended water shall be used. The sequence of wet cleaning and HEPA-filtered
vacuuming shall be repeated until no visible residue is observed in the work
(h) Negative pressure
ventilation units with HEPA filtration shall be provided in sufficient number
to allow at least one (1) work place air change every 15 minutes. Filtered air
should be exhausted to areas outside the building which are not near any intake
for the building ventilation system.
(i) Waste water generated during asbestos
abatement shall be filtered by best available technology prior to
(j) All asbestos
containing waste shall be adequately wetted with an amended water solution and
be placed in leak-tight containers.
All leak-tight containers shall be
labeled in accordance with OSHA
and EPA 40 CFR Part 61
(l) Disposal of
asbestos waste shall be at an authorized asbestos disposal facility. If the
authorized asbestos disposal site is located within Connecticut, written
authorization for disposal shall be obtained from the Department of
Environmental Protection, Bureau of Waste Management.