| (a) Site design features shall be directed toward long-term isolation and avoidance of the need for continuing active maintenance after site closure. (b) The disposal site design and operation shall be compatible with the disposal site closure plan and lead to disposal site closure that provides reasonable assurance that the performance objectives of this subchapter will be met. (c) The disposal site shall be designed to complement and improve, where appropriate, the ability of the disposal site's natural characteristics to assure that the performance objectives of this subchapter will be met. (d) Covers shall be designed to minimize water infiltration, to direct percolating or surface water away from the disposed waste, and to resist degradation by surface geologic processes and biotic activity. (e) Surface features shall direct surface water drainage away from disposal units at velocities and gradients which will not result in erosion that will require ongoing active maintenance. (f) The disposal site shall be designed to minimize the contact of water with waste during storage, the contact of standing water with waste during disposal, and the contact of percolating or standing water with wastes after disposal. (g) The design of a land disposal facility should incorporate, to the extent practicable, safeguards against hazards resulting from local meteorological conditions, including phenomena such as hurricanes, tornados, violent storms, and susceptibility to flooding, as well as geologic phenomena such as earthquakes and earth tremors. |
