Water sources options depending on water uses in the Luang Prabang rural area.

Water sources options are ranked from 0 to 3, 0 meaning that the water source is not relevant for the considered use, 1 being the preferred water source for the water use considered, provided it is financially or technically available, 2 being the alternative water source when option 1 is not available (e.g. a temporary shortage of bottled water) and 3 being the second alternative water sources, when both options 1 and 2 are not available (e.g. when the municipal water fountain runs out of water during the hot season, or when it breaks down because of limestone deposits in pipes). Two ranks given for one water source means that what is considered as an alternative water source for some villagers can be considered as the main water source for others.