Small-scale temporary tailings stockpiles exhibit characteristics of unregulated dumping, high proliferation, leachate generation propensity, and susceptibility to artificially-triggered debris flows. This study proposes a simplified mitigation approach utilizing locally-sourced cohesive soil as temporary surface cover with compaction. Numerical simulations were employed to evaluate the global stability of treated stockpiles. Results demonstrate that compaction reduces soil porosity, increases density, significantly reduces permeability coefficient, and enhances shear strength. During rainfall infiltration events, the low permeability of compacted soil limits moisture ingress compared to untreated loose stockpiles, thereby mitigating leachate production. Concurrently, the initial matric suction in shallow zones is effectively preserved, yielding correspondingly higher factors of safety within the surficial compacted soil layers.