US proposes cuts to Colorado River use for Arizona, California and Nevada
The US Bureau of Reclamation has proposed significant water use reductions for Arizona, California, and Nevada from the Colorado River to address a historic shortage. This proposal, issued on July 31, 2026, aims to prevent a crisis by potentially cutting annual use by up to 3 million acre-feet through 2036, impacting agriculture, cities, and tribes. The actual reductions will be determined every two years based on river conditions. This federal intervention comes after years of stalled negotiations among the seven basin states. While the proposal spares four other states from immediate mandatory cuts, it has drawn criticism from Arizona, California, and Nevada officials who deem the reductions unrealistic or flawed. The Colorado River's reservoirs are at their lowest levels since 1957, threatening hydropower production and water supply for over 40 million people.