What happens to unused water rights in Arizona after a certain period?

In Arizona, unused water rights can be relinquished and revert to the state if not put to beneficial use within a specified timeframe. This principle is embedded in Arizona water law, particularly under the concept of beneficial use, which is a foundational principle for water rights. If a water right is not exercised for a certain period, typically five consecutive years, the right may be considered abandoned, resulting in the state reclaiming it.

This approach encourages the efficient and responsible use of water resources, as it prevents water rights from being held indefinitely by those who do not actively use them. The relinquishment policy also helps in managing water scarcity issues within the state, promoting the allocation of water to those who are putting it to beneficial use.