U.S. Proposal Would Cut Colorado River Use In Arizona, California And Nevada Through 2036
On Friday, July 31, 2026, the U.S. Bureau of Reclamation released a formal proposal to cut Colorado River water deliveries to Arizona, California and Nevada through 2036.[1]
The plan would allow the three Lower Basin states to accept collective cuts of up to 3 million acre-feet a year, with actual cut levels recalculated every two years based on basin conditions.[1] It would divide half of any reductions under a pre-existing Lower Basin agreement and then apply the basin's priority-rights system for further cuts, a system that generally favors California users.[1] Interior Secretary Doug Burgum said the department has a responsibility to keep the Colorado River system "reliable and resilient" for the communities and industries that depend on it.[1] Arizona officials called the federal proposal flawed; California leaders called it an important milestone but not the finish line; Nevada officials described the proposed reductions as unrealistic and devastating.[1]
A record-dry winter left Lake Mead and Lake Powell at a combined record low and near levels where they may no longer be able to generate hydropower, a key trigger for federal intervention.[1] After years of deadlocked state negotiations and dueling basin proposals, the federal government stepped in because the states failed to agree on a single post-2026 management plan.[1] The plan currently spares the four Upper Basin states from mandatory reductions and is meant to buy time for broader interstate negotiations before existing guidelines expire at the end of 2026.[1]
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📌 Key Facts
- On Friday, July 31, 2026, the U.S. Bureau of Reclamation released a formal proposal detailing how Arizona, California and Nevada would share Colorado River cuts through 2036, according to the formal proposal.
- The proposal allows collective reductions of up to 3 million acre-feet annually for the three Lower Basin states, with actual cut levels to be recalculated every two years based on basin conditions.
- Under the plan, Arizona, California and Nevada would divide half of the cuts using a pre-existing Lower Basin agreement, and further reductions would follow the basin’s priority rights system, which generally favors California users.
- Interior Secretary Doug Burgum said the department has a responsibility to keep the Colorado River system “reliable and resilient” for the communities and industries that depend on it.
- State leaders reacted sharply: Arizona officials called the federal proposal flawed; California leaders called it an important milestone but not the finish line; and Nevada officials described the proposed reductions as unrealistic and devastating.
- A record-dry winter left Lake Mead and Lake Powell at a combined record low and approaching levels where they may no longer be able to generate hydropower, a key trigger for federal intervention.
- The proposal currently spares the four Upper Basin states from mandatory cuts while buying time for broader interstate negotiations before existing guidelines expire at the end of 2026 after years of deadlocked state talks.
📰 Source Timeline (2)
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- On Friday, July 31, 2026, the U.S. Bureau of Reclamation released a formal proposal detailing how Arizona, California and Nevada would share Colorado River cuts through 2036.
- The proposal allows collective reductions of up to 3 million acre-feet annually for the three Lower Basin states, with actual cut levels to be recalculated every two years based on basin conditions.
- Under the plan, Arizona, California and Nevada would divide half of the cuts using a pre-existing Lower Basin agreement; further reductions would follow the basin’s priority rights system, which generally favors California users.
- Interior Secretary Doug Burgum said the department has a responsibility to keep the Colorado River system “reliable and resilient” for communities and industries that depend on it.
- State leaders reacted sharply: Arizona officials called the federal proposal flawed, California leaders termed it an important milestone but not the finish line, and Nevada officials described the proposed reductions as unrealistic and devastating.
- The article notes a record-dry winter that left Lake Mead and Lake Powell at a combined record low, approaching levels where they may no longer be able to generate hydropower, as a key trigger for federal intervention.
- The story explains that after years of deadlocked state negotiations and dueling basin proposals, the federal government stepped in because the states failed to agree on a single post-2026 management plan.
- The proposal currently spares the four Upper Basin states from mandatory cuts, while buying time for broader interstate negotiations before existing guidelines expire at the end of 2026.