(1)
Applicability.
The requirements of
335-14-6-.31 apply to owners or
operators who store munitions and explosive hazardous wastes, except as
335-14-6-.01(1)
provides otherwise.
(NOTE: Depending on explosive hazards, hazardous waste
munitions and explosives may also be managed in other types of storage units,
including containment buildings (335-14-6-.3 0),
tanks (335-14-6-.10), or containers
(335-14-6-.09). See
335-14-7-.13(6)
for storage of waste military munitions).
(2)
Design and operating
standards.
(a) Hazardous waste
munitions and explosives storage units must be designed and operated with
containment systems, controls, and monitoring, that:
1. Minimize the potential for detonation or
other means of release of hazardous waste, hazardous constituents, hazardous
decomposition products, or contaminated run-off, to the soil, ground water,
surface water, and atmosphere;
2.
Provide a primary barrier, which may be a container (including a shell) or
tank, designed to contain the hazardous waste;
3. For wastes stored outdoors, provide that
the waste and containers will not be in standing precipitation;
4. For liquid wastes, provide a secondary
containment system that assures that any released liquids are contained and
promptly detected and removed from the waste area, or vapor detection system
that assures that any released liquids or vapors are promptly detected and an
appropriate response taken (e.g., additional containment, such as overpacking,
or removal from the waste area); and
5. Provide monitoring and inspection
procedures that assure the controls and containment systems are working as
designed and that releases that may adversely impact human health or the
environment are not escaping from the unit.
(b) Hazardous waste munitions and explosives
stored under
335-14-6-.31 may be stored in one
of the following:
1. Earth-covered magazines.
Earth-covered magazines must be:
(i)
Constructed of waterproofed, reinforced concrete or structural steel arches,
with steel doors that are kept closed when not being accessed;
(ii) Designed and constructed:
(I) To be of sufficient strength and
thickness to support the weight of any explosives or munitions stored and any
equipment used in the unit;
(II) To
provide working space for personnel and equipment in the unit; and
(III) To withstand movement activities that
occur in the unit; and
(iii) Located and designed, with walls and
earthen covers that direct an explosion in the unit in a safe direction, so as
to minimize the propagation of an explosion to adjacent units and to minimize
other effects of any explosion.
2. Above-ground magazines. Above-ground
magazines must be located and designed so as to minimize the propagation of an
explosion to adjacent units and to minimize other effects of any
explosion.
3. Outdoor or open
storage areas. Outdoor or open storage areas must be located and designed so as
to minimize the propagation of an explosion to adjacent units and to minimize
other effects of any explosion.
(c) Hazardous waste munitions and explosives
must be stored in accordance with a Standard Operating Procedure specifying
procedures to ensure safety, security, and environmental protection. If these
procedures serve the same purpose as the security and inspection requirements
of
335-14-6-.02(5),
the preparedness and prevention procedures of
335-14-6-.03, and the contingency
plan and emergency procedures requirements of
335-14-6-.04, then these
procedures will be used to fulfill those requirements.
(d) Hazardous waste munitions and explosives
must be packaged to ensure safety in handling and storage.
(e) Hazardous waste munitions and explosives
must be inventoried at least annually.
(f) Hazardous waste munitions and explosives
and their storage units must be inspected and monitored as necessary to ensure
explosives safety and to ensure that there is no migration of contaminants out
of the unit.
(3)
Closure and post-closure care.
(a) At closure of a magazine or unit which
stored hazardous waste under
335-14-6-.31, the owner or
operator must remove or decontaminate all waste residues, contaminated
containment system components, contaminated subsoils, and structures and
equipment contaminated with waste, and manage them as hazardous waste unless
335-14-2-.01(3)(d)
applies. The closure plan, closure activities, cost estimates for closure, and
financial responsibility for magazines or units must meet all of the
requirements specified in
335-14-6-.07 and
335-14-6-.08, except that the
owner or operator may defer closure of the unit as long as it remains in
service as a munitions or explosives magazine or storage unit.
(b) If, after removing or decontaminating all
residues and making all reasonable efforts to effect removal or decontamination
of contaminated components, subsoils, structures, and equipment as required in
335-14-6-.31(3)(a),
the owner or operator finds that not all contaminated subsoils can be
practicably removed or decontaminated, he or she must close the facility and
perform post-closure care in accordance with the closure and post-closure
requirements that apply to landfills [
335-14-6-.14(11)]
.