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California offers to reduce imports of Colorado River water

The All-American Canal, shown on Aug. 13, 2022, conveys water from the Colorado River into the Imperial Valley.
Gregory Bull
The All-American Canal, shown on Aug. 13, 2022, conveys water from the Colorado River into the Imperial Valley.

Imperial Valley farmers and Southern California cities would get 9% less water from the Colorado River than the amount allocated under their senior rights.

Facing demands from the federal government, California water agencies offered today to cut back the amount of water they import from the Colorado River starting in 2023.

After months of negotiations, water agencies wrote to federal agencies today offering to reduce California’s water use by 400,000 acre-feet every year through 2026. That amounts to 9% of the river’s water that California is entitled to under its senior rights.

Most of California’s Colorado River water goes to the Imperial Irrigation District, serving nearly half a million acres of farmland. Another major recipient is the Metropolitan Water District, which imports water for 19 million people in Southern California. The Coachella Valley Water District and Palo Verde Irrigation District also receive Colorado River water, and signed on to today’s letter.

The Colorado River basin has been gripped by drought for more than two decades, with its massive reservoirs dipping to historic lows. But California, which draws more water from the river than any other state, has so far dodged 2023 curtailments that were announced for Arizona, Nevada and Mexico.

Today’s offer doesn’t constitute a deal with the other basin states. But it’s the first offer the California water agencies have publicly announced since U.S. Bureau of Reclamation Commissioner Camille Calimlim Touton issued a warning to the states: Come up with a plan to conserve between 2 and 4 million acre-feet in 2023 within 60 days or face federally mandated cuts.

Touton’s 60-day deadline passed without a deal or federally mandated cuts. At the end of September, the U.S. Department of the Interior said it would work to ensure that lower basin states — California, Arizona and Nevada — continued working towards an agreement.

Whether California’s offer will be enough to satisfy the other states remains to be seen. John Entsminger, general manager of the Southern Nevada Water Authority, said in August that the negotiations had produced “exactly nothing in terms of meaningful collective action to help forestall the looming crisis.”

And U.S. Rep. Greg Stanton, a Democrat from Phoenix, told California Gov. Gavin Newsom last month that “California has ignored this urgent call and failed to offer any significant contributions to protect the system to date.”

California’s reduced use will depend on federal funds from the Inflation Reduction Act and other programs, the water agencies wrote in their letter to the Interior Department and Bureau of Reclamation today.

“We’re waiting on the Bureau of Reclamation to provide some details on how that funding will be appropriated, and to what types of programs or actions,” said Antonio Ortega, a spokesperson for the Imperial Irrigation District.

The agencies also said the offer is contingent on “a clear federal commitment” to help stabilize the Imperial Valley’s Salton Sea, which has been receding as growers conserve water. The salty body of water, which was formed by flows from the Colorado River, is home to fish and migratory birds.

CalMatters is a nonprofit, nonpartisan media venture explaining California policies and politics.