More water cuts coming for Arizona and Nevada as Colorado River falls into Tier 2 shortage

The federal government announced on Tuesday that the Colorado River will operate in a level 2 shortage condition for the first time beginning in January, as the historic western drought took a severe toll on Lake Mead.

According to a new Home Office projection, Lake Mead’s water level will be below 1,050 feet above sea level in January – the threshold required to declare a Tier 2 shortage from 2023 .

The Tier 2 shortage means Arizona, Nevada and Mexico will have to further reduce their use of the Colorado River starting in January. California will not yet have reduced the water it receives from the Colorado River.

Of the affected states, Arizona will face the largest reductions — 592,000 acre-feet — or about 21% of the state’s annual river water allocation.

“Every sector in every state has a responsibility to ensure that water is used with maximum efficiency. In order to avoid a catastrophic collapse of the Colorado River system and a future of uncertainty and conflict, the use of the water in the pond needs to be reduced,” Interior said. Deputy Secretary for Water and Science Tanya Trujillo said in a statement.

Just a year ago, the Ministry of the Interior declared the first shortage on the Colorado River – a level 1. But the last 12 months did not bring enough rain and snow. The level of Lake Mead has been around 1,040 feet this summer, only 27% of its full capacity.

The growing concern is that the mandatory cuts announced today – part of a system that was updated as recently as 2019 – are not enough to save the river from a historic drought due to climate change. States, water managers and tribes are now back at the negotiating table to figure out how to solve the water crisis in the West.

“We thought we were good, but the last few years have been so dry that we realized these level reductions weren’t enough and aren’t enough,” said Bill Hasencamp, Colorado River resource manager at Metropolitan Water. District of Southern California. told CNN. “So the two things we’re focused on are how do we get through the next three years without the system collapsing, and then how do we develop a long-term plan to sustain the Colorado River.”

“There is not much water”

The Colorado River water was distributed among seven states in the West a century ago. The pact gave half of the river’s water to the upper basin states (Colorado, Utah, Wyoming and New Mexico) and the other half to the lower basin (California, Arizona and Nevada). Mexico – through which the river flows before reaching the Gulf of California – was also guaranteed an allotment.

There was one major problem: Having been drafted in the 1920s, at a time when rainfall was above normal, the pact overestimated the amount of water carried by the Colorado River. He also failed to account for the West’s booming population growth and hotter, drier future in the face of the climate crisis.

During a Senate hearing in June, Bureau of Reclamation chief Camille Touton issued a stark warning. In order to stabilize the Colorado River Basin, states and water districts must come up with a plan by August 15 to reduce water use by 2 to 4 million acre-feet by next year. (An acre-foot is the amount of water that would fill one acre per foot of depth – approximately 326,000 gallons.)

The reduction proposed by Touton is a huge amount – the high end of the goal is about 25% less water than states currently receive. And the bottom of the goal accounts for the vast majority of Arizona’s annual water allocation from the Colorado River.

Touton also clarified in June that if states cannot come up with a plan, the federal government will act.

“It is within our powers to act unilaterally to protect the system, and we will protect the system,” she said at the time. “We have to see the work. We have to see the action. Let’s sit down and get this sorted by August.”

The Interior has yet to outline the next steps for Touton’s application for the states plan.

A satellite view of Lake Powell in Utah in April.

But interstate negotiations are not going well.

John Entsminger, chief executive of the Southern Nevada Water Authority, told CNN that so far, few stakeholders have come forward with proposals that would see the basin achieve Touton’s goal. He said he hopes the federal government will come up with “some pretty strong measures” that could be implemented immediately.

“Frankly, I’m frustrated because the overwhelming feeling I’ve had from the negotiations is that there aren’t enough people who take this seriously enough and understand that it’s about adapting to less water in this river,” Entsminger said.

Nevada has already moved to reduce its metropolitan water use, banning non-functional turf and paying people for years to remove water-hungry lawns, Entsminger said. But agriculture, which absorbs much of the river’s water, must also be part of the equation.

“You have to have input from the sector that uses 80% of the water,” he said. “It’s not law, it’s politics, it’s just math.”

Authorities reveal new details about 3 sets of human remains found at Lake Mead

Entsminger said other stakeholders who are reluctant to give up their water allocations must come to terms with a new reality: the river is drying up and sacrifices must be made.

“It doesn’t matter what can be agreed, because there isn’t much water, and mother nature will find out at some point,” he said. “At some point there is simply no water left in the river channel.”

The federal government hasn’t often stepped in and taken control of state water management plans, but it has the power to do so in the lower Colorado River Basin, which includes Arizona, southern Nevada and southern California. And experts told CNN the threat of federal action is something states will respond to.

“We kind of need the feds to make threats to incite action,” John Fleck, a western water expert and professor at the University of New Mexico, told CNN earlier this year. “Progress seems to happen when the feds come in and say to the states, you have to do this or we’re going to do something you don’t like.”

Leave a Comment