Federal Plan Proposes Severe Water Cuts to Arizona's Colorado River Supply
A new federal plan released on July 31, 2026, proposes reducing Arizona's share of Colorado River water by up to 77%, amid a 25-year megadrought. The Colorado River, a critical water source for 40 million people across seven U.S. states, Mexico, and 30 Native American tribes, is governed by the 1922 Colorado River Compact. The compact allocates 7.5 million acre-feet of water annually to both Upper Basin states (Colorado, New Mexico, Utah, Wyoming) and Lower Basin states (Arizona, Nevada, California). However, Lower Basin states face federally mandated cuts during droughts, while Upper Basin states do not. Arizona officials have criticized the Upper Basin states for refusing to accept similar cuts, citing the disproportionate impact on Arizona's economy and water users. The proposed cuts could destabilize water levels in key reservoirs like Lake Powell and Lake Mead, threatening hydroelectric power generation.