R315-265-310. Landfills -- Closure and Post-Closure Care

(a) At final closure of the landfill or upon closure of any cell, the owner or operator shall cover the landfill or cell with a final cover designed and constructed to: (1) provide long-term minimization of migration of liquids through the closed landfill; (2) function with minimum maintenance; (3) promote drainage and minimize erosion or abrasion of the cover; (4) accommodate settling and subsidence so that the cover's integrity is maintained; and (5) have a permeability less than or equal to the permeability of any bottom liner system or natural subsoils present. (b) After final closure, the owner or operator shall comply with the post-closure requirements contained in Sections R315-265-117 through R315-265-120 including maintenance and monitoring throughout the post-closure care period. The owner or operator shall: (1) maintain the integrity and effectiveness of the final cover, including making repairs to the cover as necessary to correct the effects of settling, subsidence, erosion, or other events; (2) maintain and monitor the leak detection system in accordance with Subsections R315-264-301(c)(3)(iv) and R315-264-301(c)(4) and Subsection R315-265-304(b), and comply with any other applicable leak detection system requirements of Rule R315-265; (3) maintain and monitor the ground-water monitoring system and comply with any other applicable requirements of Sections R315-265-90 through R315-265-94; (4) prevent run-on and run-off from eroding or otherwise damaging the final cover; and (5) protect and maintain surveyed benchmarks used in complying with Section R315-265-309.