Leo is in the south of the country and the people there were struggling without a well. The problem in Burkina Faso is that the open wells can supply water for a few months after the rainy season and then they dry up. Crops can also only be grown during the rains. If it is a poor rainy season the whole village will suffer as there is little food. Animals will also be in poor general health as they have to walk miles for food and water as well. This cycle of need is a treadmill and basic survival becomes the norm.
A well offers an opportunity for all year round water so you can do the things we take for granted, like being able to wash every day.