Full Breakdown
Lower Basin States Offer Colorado River Water Cuts to Stabilize Reservoirs
5/5/2026, 11:14:01 AM
Background: Drought-Driven Reservoir Decline
The Colorado River basin has faced a federal shortage since 2022. Low snowpack and record-low levels in Lake Mead and Lake Powell have reduced storage to about one-third of capacity, threatening hydropower and downstream deliveries.
Proposal Details
Arizona, California and Nevada sent a joint proposal to the Interior Department on May 1, seeking a combined cut of at least 3.2 million acre-feet (AF) through 2028—about 20 percent of the Lower Basin allocation—and adding an extra 700,000 AF to existing reductions. The plan creates a federally funded “tribal pool” of 280,000 AF in Lake Mead. Sources differ on Arizona’s share—one cites 760,000 AF, another 300,000 AF. The states request congressional funding and plan to use up to 300,000 AF of voluntary conservation from the Inflation Reduction Act.
Impact on Users and Reservoirs
Tucson Water expects about 20 percent lower future orders. The cuts aim to keep Lake Mead and Lake Powell above critical elevations for two years, preserving deliveries and hydropower.
Official Statements & Responses
The Lower Basin states’ news release calls the cuts “certain” and “voluntary,” framing the plan as a short-term bridge to a 20-year operating agreement. A Bureau of Reclamation spokesperson said the agency is reviewing the proposal in the post-2026 impact study, with a draft due mid-June and a final decision mid-July. Arizona water-resources director Tom Buschatzke called the effort “creative and committed,” and Governor Katie Hobbs said it protects Arizona’s water future.
Opposition from Upper Basin States
Representatives of Colorado, Utah, Wyoming and New Mexico called the Lower Basin’s assumptions “controversial,” urged mediation, and warned that without verifiable upstream contributions the plan’s effectiveness is limited. They note Upper Basin states already face severe drought and cannot be expected to send additional water downstream.
Conflicting Data & Gaps
Arizona’s contribution is reported as either 760,000 AF or 300,000 AF. The “extra” reduction is described as 700,000 AF in some sources and as part of the broader 3.2 million AF target in others. Operational details for the tribal pool have not been released.
Verbatim Quotes
- “When Arizonans have to take cuts, it looks like farmers fallowing fields, tighter restrictions on landscaping, watering,” — Kyle Roerink, executive director, Great Basin Water Network
- “Reductions need to be broadly shared throughout the basin,” — Patrick Dent, assistant manager, Central Arizona Project
- “This proposal is about moving from ideas to implementation,” — John Entsminger, manager, Southern Nevada Water Authority
- “Arizona is taking action to preserve the Colorado River and secure our state’s water future,” — Gov. Katie Hobbs
Next Steps
The Bureau of Reclamation will release a draft environmental impact statement by mid-June and a final decision in July. The Lower Basin states will negotiate with Upper Basin partners, seek congressional appropriations, and apply Inflation Reduction Act funds for voluntary conservation. The plan serves as a bridge until a basin-wide operating agreement is finalized.
