(a) 8-year post-closure monitoring. The following facilities shall conduct post-closure monitoring in accordance with this Part for a minimum of eight (8) years after DEQ approval of final closure:
- (1) new or currently active C&D landfills; and
- (2) new or currently active generator owned and operated NHIW landfills.
- (b) 30-year post-closure monitoring. New or currently active MSWLFs and other land disposal facilities shall conduct post-closure monitoring in accordance with this Part for a minimum of thirty (30) years after DEQ approval of final closure.
- (c) Non-land disposal facilities. Non-land disposal facilities shall conduct post-closure monitoring and care for a period specified by the DEQ if it is determined that post-closure monitoring and care are necessary due to soil or surface or groundwater contamination from activities performed at the facility.
Added at 20 Ok Reg 1151, eff 6-1-03