The demand for water for all uses in Iowa is increasing about 5 percent each year. This increasing demand means that water is becoming scarce. As water becomes scarce, it becomes valuable, and users of water seek to obtain rights to use it. Uses and users of water compete for available supplies which are not sufficient for all. This situation leads to the necessity of establishing rules for allocating water among competing uses and users.
O'Byrne, John C. and Timmons, John F.
"About Iowa's New Water Law,"
Iowa Farm Science: Vol. 12
, Article 3.
Available at: https://lib.dr.iastate.edu/farmscience/vol12/iss6/3