Louisiana Administrative Code
Title 33 - ENVIRONMENTAL QUALITY
Part V - Hazardous Wastes and Hazardous Materials
Subpart 1 - Department of Environmental Quality-Hazardous Waste
Chapter 43 - Interim Status
Subchapter F - Closure and Post-Closure
Section V-4381 - Closure Plan; Amendment of Plan

1. a description of how each hazardous waste management unit at the facility will be closed in accordance with LAC 33:V.4379; and

2. a description of how final closure of the facility will be conducted in accordance with LAC 33:V.4379. The description must identify the maximum extent of the operation which will be unclosed during the active life of the facility; and

3. the maximum inventory of hazardous wastes ever on-site over the active life of the facility for a final closure, and/or an estimate of the maximum inventory for a partial closure, and a detailed description of the methods to be used during the partial and final closure, including, but not limited to methods for removing, transporting, treating, storing or disposing of all hazardous waste, identification of, and type(s) of off-site 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 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 LAC 33:V.4403 or 4407 and whose remaining operating life is less than 20 years, and for facilities without approved closure plans; and

8. for facilities where the administrative authority has applied alternative requirements at a regulated unit under LAC 33:V.4367.E, 4377.D, and/or 4397.D, either the alternative requirements applying to the regulated unit or a reference to the enforceable document containing those alternative requirements.

1. The owner or operator must amend the closure plan whenever:

2. The owner or operator must amend the closure plan at least 60 days prior to the proposed changes in facility design or operation, or no later than 60 days after an unexpected event has occurred which has affected the closure plan. If an unexpected event occurs during the partial or final closure period, the owner or operator must amend the closure plan no later than 30 days after the unexpected event. These provisions also apply to owners or operators of surface impoundments and waste piles who intended to remove all hazardous wastes at closure, but are required to close as landfills in accordance with LAC 33:V.4501.

3. An owner or operator with an approved closure plan must submit the modified plan to the Office of Environmental Services at least 60 days prior to the proposed change in facility design or operation, or no more than 60 days after an unexpected event has occurred that has affected the closure plan. If an unexpected event has occurred during the partial or final closure period, the owner or operator must submit the modified plan no more than 30 days after the unexpected event. These provisions also apply to owners or operators of surface impoundments and waste piles who intended to remove all hazardous wastes at closure but are required to close as landfills in accordance with LAC 33:V.4501. If the amendment to the plan is a Class 2 or 3 modification according to the criteria in LAC 33:V.321.C and 322, the modification to the plan will be approved according to the procedures in Paragraph D.4 of this Section.

4. The administrative authority may request modifications to the plan under the conditions described in Paragraph C.1 of this Section. An owner or operator with an approved closure plan must submit the modified plan within 60 days of the request from the Office of Environmental Services, or within 30 days if the unexpected event occurs during partial or final closure. If the amendment is considered a Class 2 or 3 modification according to the criteria in LAC 33:V.321.C and 322, the modification to the plan will be approved in accordance with the procedures in Paragraph D.4 of this Section.

1. The owner or operator must submit the closure plan to the Office of Environmental Services at least 180 days prior to the date on which he expects to begin closure of the first surface impoundment, waste pile, land treatment, or landfill unit, or final closure if it involves such a unit, whichever is earlier. The owner or operator must submit the closure plan to the administrative authority at least 45 days prior to the date on which he expects to begin partial or final closure of a boiler or industrial furnace. The owner or operator must submit the closure plan to the administrative authority at least 45 days prior to the date on which he expects to begin final closure of a facility with only tanks, container storage, or incinerator units. Owners or operators with approved closure plans must notify the administrative authority in writing at least 60 days prior to the date on which they expect to begin closure of a surface impoundment, waste pile, landfill, or land treatment unit, or final closure of a facility involving such a unit. Owners or operators with approved closure plans must notify the administrative authority in writing at least 45 days prior to the date on which they expect to begin partial or final closure of a boiler or industrial furnace. Owners or operators with approved closure plans must notify the administrative authority in writing at least 45 days prior to the date on which they expect to begin final closure of a facility with only tanks, container storage, or incinerator units.

2. The date when he or she "expects to begin closure" either:

3. The owner or operator must submit his closure plan to the Office of Environmental Services no later than 15 days after:

4. The administrative authority will provide the owner or operator and the public, through a newspaper notice, the opportunity to submit written comments on the plan and request modifications to the plan no later than 30 days from the date of the notice. He will also, in response to a request or at his own discretion, hold a public hearing whenever such a hearing might clarify one or more issues concerning a closure plan. The administrative authority will give public notice of the hearing at least 30 days before it occurs. (Public notice of the hearing may be given at the same time as notice of the opportunity for the public to submit written comments, and the two notices may be combined.) The administrative authority will approve, modify, or disapprove the plan within 90 days of its receipt. If the administrative authority does not approve the plan he shall provide the owner or operator with a detailed written statement of reasons for the refusal and the owner or operator must modify the plan or submit a new plan for approval within 30 days after receiving such written statement. The administrative authority will approve or modify this plan in writing within 60 days. If the administrative authority modifies this plan, this modified plan becomes the approved closure plan. The administrative authority must assure that the approved plan is consistent with LAC 33:V.4377-4389 and the applicable requirements of LAC 33:V.Subchapter E, LAC 33:V.4441, 4457, 4475, 4489, 4501, 4521, 4531, 4543, and 4705. A copy of the modified plan with a detailed statement of reasons for the modifications must be mailed to the owner or operator.