Arizona joins Nevada in legal challenge over federal cuts to Colorado River water
Arizona and Nevada are collaborating in a legal battle against proposed federal reductions to their water allocations from the Colorado River, a move prompted by historically low reservoir levels and a dispute between upper and lower basin states.

Arizona has formally joined Nevada in a legal battle against the Trump administration’s proposed cuts to their shares of the shrinking Colorado River. The move follows the Department of the Interior’s announcement of restrictions this summer that could reduce water supplied to lower basin states over the next two years based on river conditions. The conflict stems from an impasse between upper and lower basin states, with the federal government intervening after the states missed several deadlines to reach a consensus.
According to The Guardian, an interior department spokesperson did not immediately respond to a request for comment on the joint litigation between Arizona and Nevada.
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An interior department spokesperson did not immediately respond to a request for comment on the joint litigation.
confirmedArizona has joined Nevada in a legal battle against proposed federal cuts to their Colorado River water shares.
confirmedThe Department of the Interior announced restrictions this summer that could reduce water supplied to lower basin states over the next two years.
confirmed