Most of the areas that we work in water availability is not an issue. However, there are wells that are shallower for many reasons or wells that were installed just for irrigation that are now not deep enough. These wells can run into issues with not having enough water in the well to sustain a flow for long periods, sometimes different things can be done to extend the life of the well and other times a new, deeper well will be required.
Other service areas that we cover can have spots that, due to the geological nature of the area, struggle for water right from the start or produce for a period of time and then slowly decline. There are a lot of dynamics in play that can have drastic affects on the drilling, pumping, and water quality.
Again, due to the geological nature it is a very difficult area to work in these areas, one should never assume that just because a location has a good well that the lot next door will also have a good well. It is not uncommon for wells just feet apart, to have drastically different characteristics in formations, yield and quality.