A new federal plan to cut water usage from the Colorado River, which is experiencing deepening drought conditions, is generating uncertainty for millions across the U.S. West, impacting cities, farmers, and tribal nations.
The plan, aimed at addressing the dwindling river levels exacerbated by climate change, demand, and overuse, will require California, Nevada, and Arizona to collectively reduce their water use by 1.25 million acre-feet annually over the next two years. Further reductions may be implemented depending on future conditions. Colorado, Utah, Wyoming, and New Mexico are not mandated to cut water use at this time but are encouraged to do so voluntarily.
Cities like Cave Creek, Arizona, which relies on the river for nearly all its water, are already facing restrictions and capping growth. Mayor Robert Morris expressed concerns that these measures may not be sufficient for the town's long-term survival, likening the situation to preparing for a meteor strike.
Farmers are grappling with decisions about which crops are economically viable to plant, given the unpredictable water future. In Yuma, Arizona, a region crucial for winter leafy green production in North America, farmers like John Boelts, president of the Arizona Farm Bureau, are hesitant to expand operations. Boelts noted that crops like citrus and date orchards take years to mature, making long-term planning difficult without stable water access.
Nevada has taken legal action, suing the Interior Department and the U.S. Bureau of Reclamation, asserting that planned reductions of up to 70% of its Colorado River water allocation over the next decade could leave the Las Vegas region unable to meet basic needs. The Bureau of Reclamation has stated it does not comment on ongoing litigation.
Tom Buschatzke, director of the Arizona Department of Water Resources, indicated that uncertainty is expected to persist and potentially worsen. The U.S. West typically relies on reservoirs, aquifers, and snowpacks for water storage, but record low snowpack has diminished the recharge of these sources.
Lake Mead and Lake Powell, the two largest reservoirs in the U.S. and key indicators for the Colorado River system, have reached historic lows. Eight other Bureau of Reclamation reservoirs have also recorded their lowest levels in at least 30 years, including Elephant Butte Lake in New Mexico, vital for agricultural regions in New Mexico, Texas, and Mexico, and reservoirs in Colorado and Wyoming that supply farmers.
While the potential for an El Niño event might bring increased moisture to the northern Rockies and Southwest, experts caution that it is unlikely to resolve the decades-long drought. David Mocko, a senior research scientist, noted that drought is a slow-moving phenomenon that requires considerable time to recover from.
Tribal nations, such as the Colorado River Indian Tribes, hold some of the oldest water rights to the river. However, issues like aging irrigation systems and a lack of infrastructure hinder their ability to fully utilize their allocations. Ray Martinez, an alfalfa farmer on the reservation, shared concerns about having enough water to complete the current growing season and highlighted that unplanted fields have been left fallow to support Lake Mead's levels. He added that further drops in the reservoir could limit surface water availability for his farm and neighboring operations.