Gov. Doug Ducey is expected to sign legislation as early as this week to spend $1 billion looking for long-term sources of new water for Arizona. State lawmakers finally lined up the votes for the plan Friday, the last day of their 2022 session. … The plan requires that 75% of the funding be spent to acquire water from outside of the state, which could include building a plant to desalinate water from the Sea of Cortez in Sonora. State officials have also mentioned exploring the possibility of a pipeline from the Mississippi River.