Interior Department Releases Flexible 10-Year Colorado River Plan, Faces State Opposition

Combined storage of Lake Powell and Lake Mead is at levels not seen since 1963, highlighting the severity of the drought era with 13.1 million acre-feet of consumptive use from 2020–2024 versus 12.9 maf of inflows on average from 2000–2024.
Upper Basin states could pursue voluntary conservation up to 200 thousand acre-feet (200 kaf) through 2026, contingent on hydrology, under the new plan.
Arizona Governor Katie Hobbs characterized parts of the federal plan as 'draconian,' signaling likely litigation as the states contest water allocations.
The FEIS notes the plan will impact more than 40 million people across seven states, 30 Native American tribes, and two Mexican states, underscoring the broad reach of management decisions.
Some outlets describe the proposed framework as a temporary fix, shielding Colorado, Utah, New Mexico, and Wyoming from mandatory cuts for now while longer-term negotiations continue toward a consensus-based solution.
The Biden-era stalemate over Colorado River water is over — at least for now. The Interior Department released a Final Environmental Impact Statement outlining a flexible 10-year plan to manage the river through 2036, with mandatory cuts of up to 3 million acre-feet targeting Lower Basin states like California and Arizona, according to Imperial Valley Press.
The plan affects more than 40 million people across seven states, 30 Native American tribes, and two Mexican states, Capitol Public Radio reported. Combined storage in Lake Powell and Lake Mead has dropped to levels not seen since 1963 — a stark sign of how severe the drought crisis has become.
Instead of locking in fixed rules, the plan sets 'sideboards' — outer limits — and updates operating guidelines every two years through 2036. Annual water releases from Lake Powell can range from 5 to 12 million acre-feet depending on conditions, according to Imperial Valley Press. States may also store between 3 and 8 million acre-feet of conserved water in Powell and Mead for future use.
Upper Basin states — Colorado, Utah, New Mexico, and Wyoming — face no mandatory cuts under the plan. They can pursue voluntary conservation of up to 200,000 acre-feet through 2026, but only if hydrology warrants it. Cowboy State Daily described the framework as 'encouraging' for Upper Basin states, while leaving tougher burdens on the Lower Basin.
Lower Basin states are not happy. Arizona Governor Katie Hobbs called parts of the federal plan 'draconian,' signaling her state may go to court to fight the cuts, according to Cowboy State Daily. California also faces potentially steep reductions, putting the two biggest Lower Basin water users on a collision course with federal managers.
The Colorado Springs Gazette noted the plan follows years of stalled talks among the seven basin states. The federal government stepped in with its own framework after states failed to reach a consensus deal. Legal challenges could delay or alter implementation before the plan is finalized.
The numbers explain why Washington acted. From 2020 to 2024, the basin consumed 13.1 million acre-feet of water per year. But average inflows from 2000 to 2024 were only 12.9 million acre-feet — meaning the river has been overdrawn for years. Capitol Public Radio reported that Powell and Mead are now at storage levels not seen since 1963.
WSHU reported that the plan could lead to historically significant cuts for Southwest communities and farms. The Interior Department framed the adaptive approach as a way to respond to unpredictable hydrology while buying time for states to negotiate a longer-term, consensus-based solution before 2026 deadlines arrive.
Wyoming Governor Mark Gordon said he was 'encouraged' by the new framework, according to Cowboy State Daily. Upper Basin leaders have long pushed for flexibility rather than rigid shortage tiers. The two-year update cycle gives states room to adjust without being locked into rules written before today's drought conditions were fully understood.
Still, the plan is explicitly a short-term fix. Imperial Valley Press noted that the Bureau of Reclamation designed the framework to preserve space for states to negotiate durable, long-term rules. Finalization is expected in the near term, but litigation from Arizona and possibly California could reshape the plan before it takes full effect.
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