South Carolina Code of Regulations › Chapter 61 - DEPARTMENT OF HEALTH AND ENVIRONMENTAL CONTROL › Subchapter 61-79 - Hazardous Waste Management Regulations › Part 61-79.265 - INTERIM STATUS STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES › Subpart G - CLOSURE AND POST CLOSURE › Section 61-79.265.G.112 - Closure plan; amendment of plan

Current through Register Vol. 48, No. 6, June 28, 2024
(a) Written plan. The owner or operator of a
				  hazardous waste management facility must have a written closure plan. Until
				  final closure is completed and certified in accordance with Section265.115, a
				  copy of the most current plan must be furnished to the Department upon request,
				  including request by mail. In addition, for facilities without approved plans,
				  it must also be provided during site inspections, on the day of inspection, to
				  any officer, employee or representative of the Department.
(b) Content of plan. The plan must identify
				  steps necessary to perform partial and/or final closure of the facility at any
				  point during its active life. The closure plan must include, at least:
(1) A description of how each hazardous waste
				  management unit at the facility will be closed in accordance with
				  Section265.111; and
(2) A
				  description of how final closure of the facility will be conducted in
				  accordance with section265.111. The description must identify the maximum
				  extent of the operations which will be unclosed during the active life of the
				  facility; and
(3) An estimate of
				  the maximum inventory of hazardous wastes ever onsite over the active life of
				  the facility and a detailed description of the methods to be used during
				  partial and final closure, including, but not limited to, methods for removing,
				  transporting, treating, storing, or disposing of all hazardous waste,
				  identification of and the type(s) of offsite hazardous waste management unit(s)
				  to be used, if applicable; and
(4)
				  A detailed description of the steps needed to remove or decontaminate all
				  hazardous waste residues and contaminated containment system components,
				  equipment, structures, and soils during partial and final closure including,
				  but not 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 necessary to satisfy the closure
				  performance standard; and
(5) A
				  detailed description of other activities necessary during the partial and final
				  closure periods to ensure that all partial closures and final closure satisfy
				  the closure performance standards, including, but not limited to, groundwater
				  monitoring, leachate collection, and run-on and run-off control; and
(6) A schedule for closure of each hazardous
				  waste management unit and for final closure of the facility. The schedule must
				  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 partial and final closure. (For example,
				  in the case of a landfill unit, estimates of the time required to treat or
				  dispose of all hazardous waste inventory and of the time required to place a
				  final cover must be included.); and
(7) An estimate of the expected year of final
				  closure for facilities that use trust funds to demonstrate financial assurance
				  under Sections265.143 or 265.145 and whose remaining operating life is less
				  than twenty years, and for facilities without approved closure plans.
(8) For facilities where the Department has
				  applied alternative requirements at a regulated unit under 265.90(f), and/or
				  265.110(d), the alternative requirements applying to the regulated
				  unit.