We manage the potential environmental impacts of mineral waste by: – comprehensively characterising the wastes – segregating reactive from non-reactive mineral wastes – designing the repositories to minimise environmental impacts – monitoring groundwater and other media to verify performance and identify failures in design or practice at the outset – undertaking progressive rehabilitation – implementing risk assessment programmes – networking externally and internally to share best practices and develop best practice control technologies Mineral waste management plans All operations that generate mineral waste are required to develop a mineral waste management plan.