Arizona joins Nevada in legal challenge to Colorado River water cuts
Arizona has filed suit alongside Nevada against proposed restrictions to lower basin states' water allocations from the shrinking Colorado River.
At a glance
- Arizona has joined Nevada's lawsuit against proposed Colorado River water cuts
- Interior department announced restrictions that could slash supplies to lower basin states
- Cuts would affect Arizona, California and Nevada over the next two years
- Reductions would depend on the river's condition
Arizona has joined Nevada's legal challenge against the Trump administration's proposed cuts to water allocations from the Colorado River. The interior department announced restrictions this summer that could reduce water supplies to lower basin states—Arizona, California and Nevada—over the next two years based on the river's water levels.
The move represents a coordinated effort by two of the three lower basin states to contest the administration's approach to managing the river's declining flows.
Why it matters
The Colorado River supplies water to millions across the southwestern United States. Declining water levels have forced difficult decisions about allocating scarce resources among competing states and users.
Original reporting
- The Guardian — WorldArizona joins Nevada to fight proposed cuts to their shares of Colorado River
This brief was written with AI assistance from the reports listed above and checked against our editorial policy. Spotted an error? Request a correction.