Nevada, alongside the Colorado River Commission of Nevada and the Southern Nevada Water Authority, recently sued the federal government. The lawsuit targets a new Department of the Interior record of decision that governs operations at Lakes Mead and Powell.
Under the new plan, Nevada could lose more than 70 percent of its already small Colorado River allocation. The state currently receives 300,000 acre-feet per year, the smallest slice of any basin state. This legal challenge brings regional tensions over Colorado River water management into focus for residents across Grand Junction and Mesa County, as Colorado is one of the four Upper Basin states involved in the river’s management.
Save The Colorado, an organization dedicated to protecting the river, has publicly stated its support for Nevada's lawsuit. Gary Wockner, who directs Save The Colorado, noted the significant imbalance in the federal plan. He explained that while Nevada faces mandatory cuts, the Upper Basin states — Colorado, Utah, New Mexico, and Wyoming — have no mandatory cuts, only voluntary conservation goals.
Save The Colorado argues that this imbalance is unwarranted, particularly given Nevada's extensive conservation efforts. Southern Nevada, especially Las Vegas, has implemented what Save The Colorado describes as "the most aggressive water conservation programs anywhere in the seven-state system." For two decades, Las Vegas has paid residents to remove grass, banned new ornamental turf outright, and recycles nearly all water used indoors, returning it to Lake Mead through return-flow credits.
In contrast, Save The Colorado points to differences in conservation ambition within Colorado. The organization notes that the Denver metro area on the Front Range lacks a well-funded, ongoing 'cash for grass' turf removal program. Additionally, Las Vegas offers significantly larger financial incentives and stricter legal mandates for turf removal compared to Denver Water. Municipal utilities in the Front Range, according to Save The Colorado, have not faced mandatory reductions in their river diversions. Denver Water recently completed a new dam project to divert even more water, and the Upper Basin states are proposing more than 30 new dam and diversion projects that, if built, would further draw water from the river before it reaches states like Nevada.
Gary Wockner stated that Save The Colorado believes the Upper Basin — including Colorado's Front Range cities and West Slope farms — should be cutting their water use significantly. This, he argues, would leave more water in the river itself, supporting fish, riparian habitat, and the river's basic function as a living system.
The Department of the Interior's decision, by prioritizing Lake Powell's elevation and water storage over releases through Glen Canyon Dam, will hold back water. Save The Colorado warns that this will negatively impact the Colorado River through the Grand Canyon, an ecosystem already affected by Glen Canyon Dam, further harming its native fish, beaches, and riparian landscape.
The core of Nevada's lawsuit, according to Save The Colorado, is an argument about fairness. The state contends that water cuts should be based on actual water use and conservation efforts, rather than simply a state's geographic location relative to a dam. Save The Colorado further emphasizes that the broader goal should not only be to fairly redistribute water reductions among human users but also to ensure more water remains within the river. The organization concludes that if the Upper Basin matched even a fraction of Southern Nevada's conservation ambition, the Colorado River would be healthier.
