Ill. Admin. Code tit. 35, § 724.212 - Closure Plan; Amendment of Plan

a) Written Plan Required
1) The owner or operator of a hazardous waste management facility must have a written closure plan. In addition, certain surface impoundments and waste piles from which the owner or operator intends to remove or decontaminate the hazardous waste at partial or final closure are required by Sections 724.328(c)(1)(A) and 724.358(c)(1)(A) to have contingent closure plans. The plan must be submitted with the permit application, in accordance with 35 Ill. Adm. Code 703.183, and approved by the Agency as part of the permit issuance proceeding pursuant to 35 Ill. Adm. Code 705. In accordance with 35 Ill. Adm. Code 703.241, the approved closure plan will become a condition of any RCRA permit.
2) The Agency's approval of the plan must ensure that the approved closure plan is consistent with Sections 724.211 through 724.215 and the applicable requirements of Sections 724.190 et seq., 724.278, 724.297, 724.328, 724.358, 724.380, 724.410, 724.451, 724.701, and 724.1102. Until final closure is completed and certified in accordance with Section 724.215, a copy of the approved plan and approved revisions must be furnished to the Agency upon request, including requests by mail.
b) Content of Plan. The plan must identify steps necessary to perform partial or final closure of the facility at any point during its active life. The closure plan must include, at least the following:
1) A description of how each hazardous waste management unit at the facility will be closed in accordance with Section 724.211;
2) A description of how final closure of the facility will be conducted in accordance with Section 724.211. The description must identify the maximum extent of the operations that will be unclosed during the active life of the facility;
3) An estimate of the maximum inventory of hazardous wastes ever on-site over the active life of the facility and a detailed description of the methods to be used during partial closures and final closure, including, but not limited to, methods for removing, transporting, treating, storing, or disposing of all hazardous wastes, and identification of the types of off-site hazardous waste management units to be used, if applicable;
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 required to satisfy the closure performance standard;
5) A detailed description of other activities necessary during the closure period 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;
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 that 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 and dispose of all hazardous waste inventory and of the time required to place a final cover must be included.);
7) For facilities that use trust funds to establish financial assurance pursuant to Section 724.243 or 724.245 and that are expected to close prior to the expiration of the permit, an estimate of the expected year of final closure; and
8) For a facility where alternative requirements are established at a regulated unit pursuant to Section 724.190(f), 724.210(c), or 724.240(d), as provided pursuant to 35 Ill. Adm. Code 703.161, either the alternative requirements applying to the regulated unit or a reference to the enforceable document containing those alternative requirements.
c) Amendment of the Plan. The owner or operator must submit a written notification of or request for a permit modification to authorize a change in operating plans, facility design, or the approved closure plan in accordance with the applicable procedures in 35 Ill. Adm. Code 702, 703, and 705. The written notification or request must include a copy of the amended closure plan for review or approval by the Agency.
1) The owner or operator may submit a written notification or request to the Agency for a permit modification to amend the closure plan at any time prior to notification of partial or final closure of the facility.
2) The owner or operator must submit a written notification of or request for a permit modification to authorize a change in the approved closure plan whenever any of the following occurs:
A) Changes in operating plans or facility design affect the closure plan;
B) There is a change in the expected year of closure, if applicable;
C) In conducting partial or final closure activities, unexpected events require modification of the approved closure plan; or
D) The owner or operator requests the establishment of alternative requirements, as provided pursuant to 35 Ill. Adm. Code 703.161, to a regulated unit pursuant to Section 724.190(f), 724.210(c), or 724.240(d).
3) The owner or operator must submit a written request for a permit modification including a copy of the amended closure plan for approval at least 60 days prior to the proposed change in the facility design or operation, or no later than 60 days after an unexpected event has occurred that has affected the closure plan. If an unexpected event occurs during the partial or final closure period, the owner or operator must request a permit modification no later than 30 days after the unexpected event. An owner or operator of a surface impoundment or waste pile that intends to remove all hazardous waste at closure and is not otherwise required to prepare a contingent closure plan pursuant to Section 724.328(c)(1)(A) or 724.358(c)(1)(A), must submit an amended closure plan to the Agency no later than 60 days after the date the owner or operator or Agency determines that the hazardous waste management unit must be closed as a landfill, subject to Section 724.410, or no later than 30 days after that date if the determination is made during partial or final closure. The Agency must approve, disapprove or modify this amended plan in accordance with the procedures in 35 Ill. Adm. Code 702, 703, and 705. In accordance with 35 Ill. Adm. Code 702.160 and 703.241, the approved closure plan will become a condition of any RCRA permit issued.
4) The Agency may request modifications to the plan under the conditions described in Section 724.212(c)(2). The owner or operator must submit the modified plan within 60 days after the Agency's request, or within 30 days if the change in facility conditions occurs during partial or final closure. Any modifications requested by the Agency must be approved in accordance with the procedures in 35 Ill. Adm. Code 702, 703, and 705.
d) Notification of Partial Closure and Final Closure
1) The owner or operator must notify the Agency in writing at least 60 days prior to the date on which the owner or operator expects to begin closure of a surface impoundment, waste pile, land treatment, or landfill unit or final closure of a facility with such a unit. The owner or operator must notify the Agency in writing at least 45 days prior to the date on which the owner or operator expects to begin final closure of a facility with only treatment or storage tanks, container storage, or incinerator units to be closed. The owner or operator must notify the Agency in writing at least 45 days prior to the date on which the owner or operator expects to begin partial or final closure of a boiler or industrial furnace, whichever is earlier.
2) The date when the owner or operator "expects to begin closure" must be either of the following:
A) No later than 30 days after the date on which any hazardous waste management unit receives the known final volume of hazardous wastes or, if there is a reasonable possibility that the hazardous waste management unit will receive additional hazardous wastes, no later than one year after the date on which the unit received the most recent volume of hazardous waste. If the owner or operator of a hazardous waste management unit demonstrates to the Agency that the hazardous waste management unit or facility has the capacity to receive additional hazardous wastes and that the owner or operator has taken and will continue to take all steps to adequately prevent threats to human health and the environment, including compliance with all applicable permit requirements, the Agency must approve an extension to this one-year limit; or
B) For units meeting the requirements of Section 724.213(d), no later than 30 days after the date on which the hazardous waste management unit receives the final known volume of non-hazardous wastes, or, if there is a reasonable possibility that the hazardous waste management unit will receive additional non-hazardous wastes, no later than one year after the date on which the unit received the most recent volume of non-hazardous wastes. If the owner or operator demonstrates to the Agency that the hazardous waste management unit has the capacity to receive additional non-hazardous wastes and that the owner and operator have taken, and will continue to take, all steps to adequately prevent threats to human health and the environment, including compliance with all applicable permit requirements, the Agency must approve an extension to this one-year limit.
3) If the facility's permit is terminated, or if the facility is otherwise ordered by judicial decree or Board order to cease receiving hazardous wastes or to close, then this subsection (d) does not apply. However, the owner or operator must close the facility in accordance with the deadlines established in Section 724.213.
e) Removal of Wastes and Decontamination or Dismantling of Equipment. Nothing in this Section must preclude the owner or operator from removing hazardous wastes and decontaminating or dismantling equipment in accordance with the approved partial or final closure plan at any time before or after notification of partial or final closure.

Notes

Ill. Admin. Code tit. 35, § 724.212

Amended at 31 Ill. Reg. 893, effective December 20, 2006

Amended at 43 Ill. Reg. 5999, effective 5/2/2019

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