Arizona Explores Desalination and “Water Swap” with Mexico as Dwindling Water Supply Grows Dire

As the Colorado River shrinks and the river states remain deadlocked in negotiation, Arizona is reaching for ever more drastic strategies to ensure its future water supply.

1 minute read

November 30, 2025, 5:00 AM PST

By Christine McLaren


ABC 15 Arizona reports that the state is exploring “some of its biggest water-supply ideas yet, unveiling seven proposals that could bring new sources of water into the state as the Colorado River continues to shrink and negotiations over future cuts remain stalled.”

The proposals, which include desalination, cross-border partnerships, groundwater storage efforts, reuse and more, come at a critical moment when Arizona and six other states remain deadlocked in negotiations on how to manage the river. 

“One of our most important sources of supply, the Colorado River, is overstressed,” ABC quoted Sarah Porter, director of ASU’s Kyl Center for Water Policy. “We're at an impasse.”

The proposed measures are not insignificant. For example, desalination is expensive, especially given that Arizona does not sit close to the ocean. Likewise wastewater treatment strategies would involve interstate collaboration with California. 

Read the full story at the link below, and read the seven proposals in detail here.

Sunday, November 23, 2025 in ABC 15

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