Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 724 - STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES
Subpart G - CLOSURE AND POST-CLOSURE CARE
Section 724.217 - Post-Closure Care and Use of Property

Universal Citation: 35 IL Admin Code ยง 724.217

Current through Register Vol. 48, No. 38, September 20, 2024

a) Post-Closure Care Period

1) Post-closure care for each hazardous waste management unit subject to the requirements of Sections 724.217 through 724.220 must begin after completion of closure of the unit and continue for 30 years after that date and must consist of at least the following:
A) Monitoring and reporting in accordance with the requirements of Subparts F, K, L, M, N, and X; and

B) Maintenance and monitoring of waste containment systems in accordance with the requirements of Subparts F, K, L, M, N, and X.

2) Any time preceding partial closure of a hazardous waste management unit subject to post-closure care requirements or final closure, or any time during the post-closure care period for a particular unit, the Board may, in accordance with the permit modification procedures of 35 Ill. Adm. Code 702, 703, and 705, do either of the following:
A) Shorten the post-closure care period applicable to the hazardous waste management unit or facility if all disposal units have been closed and the Board has found by an adjusted standard issue pursuant to Section 28.1 of the Act and 35 Ill. Adm. Code 101 and 104 that the reduced period is sufficient to adequately protect human health and the environment (e.g., leachate or groundwater monitoring results, characteristics of the waste, application of advanced technology or alternative disposal, treatment, or re-use techniques indicate that the hazardous waste management unit or facility is secure); or

B) Extend the post-closure care period applicable to the hazardous waste management unit or facility if the Board has found by an adjusted standard issue pursuant to Section 28.1 of the Act and 35 Ill. Adm. Code 101 and 104 that the extended period is necessary to adequately protect human health and the environment (e.g., leachate or groundwater monitoring results indicate a potential for migration of hazardous wastes at levels that may be harmful to human health and the environment).

b) The Agency must require continuation at partial or final closure of any of the security requirements of Section 724.114 during part or all of the post-closure period when either of the following is true:

1) Hazardous wastes may remain exposed after completion of partial or final closure; or

2) Access by the public or domestic livestock may pose a hazard to human health.

c) Post-closure use of property on or in which hazardous wastes remain after partial or final closure must never be allowed to disturb the integrity of the final cover, liners, or any other components of the containment system or the function of the facility's monitoring systems, unless the Agency finds, by way of a permit modification, that the disturbance is necessary for either of the following reasons:

1) It is necessary to the proposed use of the property, and will not increase the potential hazard to human health or the environment; or

2) It is necessary to reduce a threat to human health or the environment.

d) All the post-closure care activities must be in accordance with the provisions of the approved post-closure plan as specified in Section 724.218.

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