Give a gift to sponsor a new water well project, or donate a chunck of the money needed to dig a shallow, or deep well.
Minimum well prices vary from $2500 to $7500 depending on how deep the well will be, and the drilling formation difficulty.
Also the type of pump to be installed in a well is part of the major consideration in terms of cost. Deep well solar pumps are most preferred but cost a little bit more than ordinary electric submersible pumps, or manual bush pumps like Indian Mark III.