| (iv) Appropriate protective clothing and respiratory
protection must be worn within the mini-containment.
(v) A visual inspection must be performed by a licensed
O&M supervisor before removing a mini-containment.
(vi) If the mini-containment will be reused, the interior
must be completely washed with amended water and HEPA-vacuumed. Air
clearance must be performed by a licensed asbestos consultant or the
consultant's designated licensed AMT.
(vii) If the mini-containment will not be reused, it
must be removed by sealing the door, collapsing the containment using
a HEPA-equipped vacuum and disposal as ACWM.
(C) Removal of entire structures.
(i) Before removing an asbestos-insulated pipe or an
asbestos-containing or covered structure in its entirety, the structure
must be wrapped with 6-mil thick plastic sheeting and securely sealed
with duct tape or wrapped and sealed in a manner that provides equivalent
protection.
(ii) If the entire structure cannot be removed without
disturbing ACM, but a small section can be stripped of the ACM to
allow for cutting and removal of the entire structure at the stripped
sections, the glove-bag method described in subparagraph (A) of this
paragraph must be used to strip the small section of ACM to allow
for removal of the entire structure.
(7) Enclosure of ACM must be performed in accordance
with the following requirements.
(A) To enclose a structure with ACM, rather than removing
the ACM, a solid structure with airtight walls and ceiling must be
built around the asbestos-covered structure. A suspended ceiling with
laid-in panels does not constitute an airtight ceiling for purposes
of this paragraph.
(B) If enclosure is the control method used, electrical
conduits, telephone lines, recessed lights, and pipes in the area
to be enclosed must be moved before construction of the enclosure
to ensure that the enclosure will not have to be re-opened.
(C) The enclosure must:
(i) be permanent;
(ii) be built of new construction materials;
(iii) be impact resistant; and
(iv) be airtight.
(D) Enclosure walls must be made of tongue-and-groove
boards, boards with spine joints, or gypsum boards having taped seams.
The underlying structure must be able to support the weight of the
enclosure.
(E) All joints adjoining the walls and ceiling of the
enclosure must be caulked.
(F) Tools used during the installation of the enclosure
must be equipped with a HEPA-filtered vacuum.
(8) Asbestos exposed as a result of any spot repair
must be properly enclosed or encapsulated.
(9) HEPA vacuuming, wet cleaning, or both must be used
to decontaminate regulated areas and equipment until there is no visible
debris.
(10) ACWM must be double-bagged into 6-mil thick plastic
bags or sealed in leak-tight drums that must be marked in accordance
with applicable NESHAP and OSHA regulations and paragraph (13) of
this subsection and disposed of in accordance with NESHAP and as required
in paragraphs (15) - (17) of this subsection.
(11) A bag must not be filled to a level that tears
or breaks the bag. Excess air in a bag must be removed before exiting
a mini-containment or removing a glove bag. The top of the bag must
be twisted closed, folded over, and sealed with duct tape. The bag
must be rinsed off or HEPA-vacuumed in the regulated area to remove
asbestos contamination and placed inside another bag or leak-tight
drum. If an outer bag is used, excess air must be removed, and the
bag must be closed and sealed in the same manner as the inner bag.
(12) If a bag leaks, the bag must be placed into a
third bag and sealed as required in paragraphs (10) and (11) of this
subsection. If a drum leaks, the drum must be wrapped in a minimum
of one layer of 6-mil thick plastic sheeting and sealed.
(13) The exterior bag, wrapping, or leak-tight drum
must have warning and generator labels applied as specified in 40
CFR §61.150(a)(1)(iv) and (v) (relating to Standard for waste
disposal for manufacturing, fabricating, demolition, renovation, and
spraying operations). Generator labels must be printed in letters
of sufficient size and contrast to be readily visible and legible.
All required labeling of ACWM containers must be done before removal
from the regulated area. Any container or wrapped component labeled
as asbestos must be containerized and labeled as ACWM before removal
from the regulated area.
(14) ACBM must be removed as a wrapped unit or in small
sections and containerized while wet. Material must not be allowed
to accumulate on the floor or become dry. Any structural component
or piping must be adequately wetted before wrapping it in plastic
sheeting for disposal.
(15) Temporary storage of ACWM must be provided (for
example, a dedicated roll-off box, dumpster, or storage room lined
with 6-mil thick plastic sheeting). All temporary storage must be
sealed to prevent unauthorized access and safeguarded to keep the
storage container sealed and leak tight. Final disposal of ACWM must
be within 30 days after project completion, or when the receiving
container is full, whichever is sooner.
(16) A vehicle used to transport ACWM must be marked
in accordance with 40 CFR §61.149(d)(1)(i) - (iii), (relating
to Standard for waste disposal for asbestos mills) and §61.150(c)
during the loading and unloading of ACWM so that the signs are visible.
(17) ACWM transported by a licensed asbestos transporter
off the asbestos operations and maintenance abatement project site
must be disposed of in accordance with 40 CFR §61.150(d).
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