Quite often you will see a low-flow well that will not meet your day to day water needs. The solution to this is the Cistern. A Cistern or holding tank is simply a means of water storage for later usage. They are generally set up so the deep well will pump to the cistern and from there supply the house or irrigation needs.
Cisterns come in many sizes and shapes to fit your particular application. As a side benefit, a cistern can provide an emergency water supply in the event of the deep well running dry, in case of fire, or a large amount of water needed for family gatherings etc.