(1) The owner or operator of a landfarm facility shall:

(a) monitor the reclaimed site for vegetative growth for a minimum of two years after closure. If the revegetation is unsuccessful as determined by the department, the owner or operator shall re-seed and monitor the reclaimed site until the department determines the revegetation is successful;

(b) for a landfarm facility required to monitor ground water, ground water monitoring must be conducted at least semi-annually for a minimum of two years after closure as pursuant to ARM 17.50.1611(13);

(c) place documentation of the monitoring in the operating record requirements of ARM 17.50.1106.