S.C. Code Regs. § § 61-107.19.V.F.258.61

Current through Register Vol. 48, No. 10, October 25, 2024

Section 61-107.19.V.F.258.61 - Post-closure Care Requirements

a. Following closure of each Class Three landfill, the permittee shall conduct post-closure care. Post-closure care shall be conducted for a minimum 30 years, except as provided in paragraph b. below, and consist of at least the following:

(1) Maintaining the integrity and effectiveness of any final cover, including making repairs to the cover as necessary to correct the effects of settlement, subsidence, erosion, or other events, and preventing run-on and run-off from eroding or otherwise damaging the final cover;

(2) Maintaining and operating the leachate collection system in accordance with the requirements in 258.40., if applicable. The Department may allow the permittee to stop managing leachate if the permittee demonstrates to the Department's satisfaction that leachate no longer poses a threat to human health and the environment;

(3) Monitoring the groundwater in accordance with the requirements of Subpart E and maintaining the groundwater monitoring system, if applicable; and,

(4) Maintaining and operating the gas monitoring system in accordance with the requirements of Section258.23.

b. The length of the post-closure care period may be:

(1) Increased by the Department if the Department determines that the lengthened period is necessary to protect human health and the environment; or,

(2) Decreased by the Department if the permittee can provide technical rationale that the decreased post-closure care period is sufficient to protect human health and the environment.

c. The permittee of all Class Three landfills shall prepare a written post-closure plan that includes, at a minimum, the following information:

(1) A description of the monitoring and maintenance activities required in paragraph a. for each Class Three landfill, and the frequency at which these activities will be performed;

(2) Name, address, and telephone number of the person or office to contact about the facility during the post-closure period; and,

(3) A description of the planned uses of the property during the post-closure period. Post-closure use of the property shall not disturb the integrity of the final cover, liner(s), or any other components of the containment system, or the function of the monitoring systems unless necessary to comply with the requirements in this Part. The Department may approve any other disturbance of the containment system if the permittee demonstrates that disturbance of the final cover, liner or other component of the containment system, including any removal of waste, will not increase the potential threat to human health or the environment.

d. Prior to permit issuance, the permittee shall submit to the Department a post-closure plan for review and approval. The post-closure plan shall be updated if any changes occur at the facility which require a deviation from the approved post-closure plan.

e. Following completion of the post-closure care period for each Class Three landfill, the permittee shall submit to the Department, certification that is signed by a South Carolina registered professional engineer other than the design engineer, verifying that post-closure care has been completed in accordance with the post-closure plan.

S.C. Code Regs. § 61-107.19.V.F.258.61