Ariz. Rev. Stat. § 45-1002
A. A person may withdraw, divert or use water received through a water exchange only if one or more of the following apply:
3. The water exchange is made pursuant to a water exchange contract enrolled under section 45-1021 and either:
B. A party that gives water pursuant to a water exchange authorized under subsection A of this section must receive the water to be exchanged for it within a twelve month period unless one of the following applies: