Code of Massachusetts Regulations › 310 CMR - DEPARTMENT OF ENVIRONMENTAL PROTECTION › Title 310 CMR 30.000 - Hazardous waste › GENERAL PROVISIONS › Section 30.583 - Contents and Approval of Closure Plan; Notification of Closure

Current through Register 1525, July 5, 2024
(1) The owner or operator of a facility shall
				have a written closure plan that complies with the requirements of 310 CMR
				30.580. The owner or operator of a facility at which there is a surface
				impoundment described in
				310 CMR 30.617(5)
				 or a waste pile described in
				310 CMR 30.649(3)
				 from which the owner or operator intends to
				remove all hazardous waste at closure shall have a contingent closure plan that
				complies with the requirements of 310 CMR 30.590 and, as applicable, in
				310 CMR 30.617(5)
				 and
				30.649(3).
				Each closure plan shall identify the activities that shall, and each contingent
				closure plan shall identify the activities that might, be necessary to close
				the hazardous waste management unit or facility at any point during its
				intended operating life or at the end of its intended operating life. The
				closure plan shall include at least:
(a) A
				description of how and when each hazardous waste management unit at the
				facility will be closed during the facility's intended operating life, and the
				facility as a whole will be closed at the end of its intended operating life.
				The plan shall identify how the requirements of 310 CMR 30.580 shall be
				complied with.
(b) A description
				that shall identify the capacity and extent of the facility's operation that is
				planned to be active at the time that the capacity and extent of the facility's
				operation will be at maximum.
(c)
				An estimate of the maximum inventory of hazardous wastes ever on the site of
				the facility over the active life of the facility.
(d) A detailed description of the methods to
				be used during closure(s), including, but not limited to, methods for removing,
				transporting, treating, storing, or disposing of all hazardous wastes, and
				identification of the type(s) of the off-site hazardous waste management units
				to be used, if applicable.
(e) A
				detailed description of the steps needed to remove hazardous waste residues
				from, or decontaminate, all contaminated containment system components, and all
				facility equipment, structures, and soils during closure(s). This description
				shall include, but not be limited to, procedures for cleaning equipment and
				removing contaminated soils, methods for sampling and testing surrounding
				soils, and criteria for determining the extent of decontamination required to
				comply with the closure performance standard,
				310 CMR
				30.582.
(f) A detailed description of other
				activities necessary during the period of each closure to ensure that all
				closures comply with the closure performance standard,
				310 CMR
				30.582. This description shall include, but
				not be limited to, ground water monitoring, leachate collection, and run-on and
				run-off control.
(g) A schedule for
				closure of each hazardous waste management unit and for final closure of the
				facility. The schedule shall include, at a minimum, the total time required to
				close each hazardous waste management unit, and the time required for
				intervening closure activities which will allow tracking of the progress of
				closure. For example, in the case of a landfill unit, the plan shall include
				estimates of the time required to treat or dispose of all hazardous waste
				inventory and of the time required to place a final cover. In addition,
				facilities that use trust funds to demonstrate financial assurance for closure
				pursuant to
				310 CMR
				30.904 shall include an estimate of the
				expected year of closure. Facilities not using trust funds are not required to
				estimate the expected year of closure, provided that the closure fund mechanism
				is funded appropriately and updated annually.
(h) A description of how the requirements of
				310 CMR 30.580, and the applicable closure requirements of
				310 CMR
				30.606(1) through (3),
				30.617,
				30.633,
				30.649,
				30.659,
				30.689, and
				30.699
				will be complied with.