Ariz. Rev. Stat. § 45-544
A. Except as otherwise provided in this section, section 45-547 and article 8.1 of this chapter, in areas outside of active management areas:
1. Groundwater may be transported:
B. Notwithstanding subsection A, paragraph 2 or 3 of this section, subject to payment of damages:
1. A person who at any time during the twelve months before January 1, 1991 was transporting away from the Little Colorado river plateau groundwater basin or the Parker groundwater basin groundwater that was legally withdrawn from a well in either groundwater basin has the right, subject to subsection C of this section, to transport groundwater that is legally withdrawn from the well or a replacement well in approximately the same location to another groundwater basin in an annual amount equal to the greater of the maximum amount of groundwater either:
6. A city or town in the Coconino plateau groundwater basin with a population of not more than eight thousand persons that was transporting groundwater into its municipal water service area from an adjacent groundwater basin as of January 1, 2001, from wells that the director determines were erroneously drilled without knowledge that the wells were in the adjacent groundwater basin, may continue and expand that transfer subject to all of the following conditions:
(d) The city or town shall no longer transport any groundwater pursuant to this paragraph if all of the following apply:
8. If the upper San Pedro water district is established under title 48, chapter 37:
C. The director may limit by order the amount of groundwater withdrawn from a well in the Little Colorado river plateau groundwater basin for transportation away from the basin pursuant to subsection B, paragraph 1 of this section in any year in which the director determines that the projected withdrawals from the well for that purpose will unreasonably increase damage to surrounding land or other water users and if the well:
E. For the purposes of this section: