Two largest U.S. reservoirs hit record lows amid Western drought

The two largest reservoirs in the United States, Lake Powell and Lake Mead, have reached record-low water levels due to an ongoing severe drought in the West, according to new data. These reservoirs, which are crucial resources for 40 million people, are experiencing their lowest points since records began. Both lakes are fed by the Colorado River, a vital water source.

Their water levels are now just above the threshold at which hydropower generation could be impacted. Lake Powell, mostly located in Utah, reached a level of 3,519.80 feet above sea level on Sunday, slightly below its previous low set in 2023. Meanwhile, Lake Mead, formed by Hoover Dam on the Nevada-Arizona border, dropped to 1,039.70 feet on Friday, marking its lowest level ever recorded.

The seven states that rely on the Colorado River have long been struggling to agree on water distribution, leading the Trump administration to step in. The administration unveiled a plan in late July that grants it the authority to impose restrictions on water usage in California, Arizona, and Nevada, requiring them to cut their collective water consumption by up to 3.7 billion cubic meters per year until 2036.

This reduction is equivalent to 1.5 million Olympic-sized swimming pools. However, the plan does not mandate significant changes from Colorado, Utah, Wyoming, and New Mexico. The imbalance in water distribution could potentially lead to legal disputes, with Arizona already setting aside millions for potential lawsuits. The Colorado River's water shortages pose a serious threat to the water and electricity supplies for millions of people, prompting proposed consumption reductions in California, Arizona, and Nevada through 2036.