US plan for Colorado River could cut up to 40% supply for Arizona, California and Nevada
Proposal comes after seven states drawing water from drought-stricken river failed to come to an agreement
The US government has proposed a plan for the drought stricken Colorado River that could cut up to 40% of current supplies to Arizona, California and Nevada, as the waterway’s reservoirs continue to plunge to critically low levels.
A top Arizona water official shared details of the Trump administration’s plan at a state meeting on Wednesday.
Under the 10-year plan, which will be finalized in June, the annual amount of water delivered to Arizona, California and Nevada could be slashed by up to 3m acre-feet, according to Tom Buschatzke, director of the Arizona department of water resources. The reductions would be evaluated every two years.
Three million acre-feet of water is enough to supply 6 million to 9 million households for one year, more than the number of homes in Arizona and Nevada.
Buschatzke said the federal plan would be either implemented under existing Colorado River law or through agreements among the states. He said federal officials had indicated that water cuts across the three lower-basin states would be based on the “priority of the law of the river”. That law, the 1922 Colorado River Compact, gives California the highest priority for water use.
Buschatzke described the proposed federal cuts as “sobering”.
“That’s us, that’s Arizona, and potentially CAP going to zero,” said Buschatzke, referring to water flows on the Central Arizona Project, a canal that transports Colorado River water to central and southern Arizona.
The Colorado river supplies water to some 40 million people in the American west. The plan comes months after the seven states that depend on the river’s dwindling supply missed a February federal deadline to agree upon how water cuts would be divided. The river has lost about 27.8m acre-feet of groundwater in the last 20 years, largely owing to overuse. A record snow drought this year further exacerbated the issue.
The river’s upper basin states, Colorado, Utah, Wyoming and New Mexico, have been resistant to water reductions. The states maintain that those downstream, California, Arizona and Nevada bear responsibility for the water’s shortages and thus should carry the burden of cuts.
Doug Burgum, the US interior secretary, indicated earlier this year that the US Bureau of Reclamation would step in to manage the protracted dispute.
Two weeks ago, California, Arizona and Nevada announced their own proposal for voluntary water reductions up to 3.25m acre-feet through 2028. Under their offer, Arizona’s water flow would be slashed by 760 acre-feet, California by 440 acre-feet and Nevada by 50 acre-feet.
However, it’s unclear if the states’ plan will go ahead, and it would still require cooperation from state water agencies and the federal government. Alex Smith, an employee with the US Bureau of Reclamation’s Phoenix office, told AZ Central the agency is evaluating the risks and benefits of the lower basin states’ plan.
During public comment on Wednesday, Patrick Adams, senior water policy adviser to Katie Hobb, the Arizona governor, said “things are moving very quickly”, referring to the federal government’s proposal.
“The risk of 3m acre-feet of reductions only in the lower basin is something that’s quite alarming to us. So we need to grapple with that,” he said.
When you look at the federal plan would be either implemented under existing Colorado River law or through agreements among the states, the implications are hard to ignore.
The bigger issue here is a top Arizona water official shared details of the Trump administration’s plan at a state meeting on Wednesday. That changes the calculation.
Reading that three million acre-feet of water is enough to supply 6 million to 9 million households for one year, more than the number of homes in Arizona and Nevada — hard to argue with the logic there.
So the bottom line is a top Arizona water official shared details of the Trump administration’s plan at a state meeting on Wednesday. Wonder how this will land.
Basically the federal plan would be either implemented under existing Colorado River law or through agreements among the states. What matters is whether anything changes because of it.
On one hand the Colorado river supplies water to some 40 million people in the American west. But at the same time the river’s upper basin states, Colorado, Utah, Wyoming and New Mexico, have been resistant to water reductions.
In other words three million acre-feet of water is enough to supply 6 million to 9 million households for one year, more than the number of homes in Arizona and Nevada. Curious to see how this develops.
The detail about the river’s upper basin states, Colorado, Utah, Wyoming and New Mexico, have been resistant to water reductions is something people should sit with.
When you look at three million acre-feet of water is enough to supply 6 million to 9 million households for one year, more than the number of homes in Arizona and Nevada, the implications are hard to ignore.
So the bottom line is the Colorado river supplies water to some 40 million people in the American west. Wonder how this will land.
40 million is hard to ignore, no matter which side you are on.
So the bottom line is the river’s upper basin states, Colorado, Utah, Wyoming and New Mexico, have been resistant to water reductions. Wonder how this will land.
The fact that the river’s upper basin states, Colorado, Utah, Wyoming and New Mexico, have been resistant to water reductions really puts things into perspective.