- (a) All land disposal facilities. Liner systems shall be designed and constructed to maintain a minimum five-foot vertical separation between the highest groundwater elevation and the lowermost surface on which waste, including leachate, will be placed.
- (b) C&D landfills with in-situ liners. C&D landfills utilizing an in-situ liner shall be designed to maintain a minimum fifteen-foot vertical separation between the highest groundwater elevation and the lowermost surface on which waste will be placed.
- (c) C&D landfills with reconstructed clay liners. C&D landfills utilizing a reconstructed clay liner shall be designed to maintain a minimum five-foot vertical separation between the highest groundwater elevation and the top of the clay liner.
Added at 20 Ok Reg 1151, eff 6-1-03
Amended at 41 Ok Reg, Number 23, effective 9-15-24