sentences:  Because any extra amount of water after applying water to a beneficiaries of the pre-existing water policies does not belong to the appropriators, such a condition creates an incentive to use as much water as possible rather than saving.This obviously causes costs of irrigation to be greater than the optimal amount which makes the policy very inefficient.However, by enacting Conserved Water Statutes, state legislatures are able to address the disincentives to save water.