Water management is a concern at all times in the mining industry. The management of mining waste differs and evolves throughout the life cycle of a mine, as does the treatment and monitoring program. In this program, the type of ore extracted must be taken into account, as well as the specifications of each mine site (ore extraction with or without treatment, presence or absence of tailings ponds, presence or absence of water treatment systems, etc.), as well as the mine site status (in operation, post-mining, or post-closure restoration). No matter the challenges brought by the management of mine waste, the mining industry still aims to ensure the protection of the environment, the natural ecosystems and the surrounding populations.