When mines start operating, will communities have water?

When a responsible mine is set up in high places, it must respect the quantity of water spent by the involved basins. For example, before Conga Project operates, 4 reservoirs will be built to assure enough water in dry seasons. These 4 reservoirs might even have more storage capacity (double) than the current lakes. In other words, more efficient the mining is, more water there will be.