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Wednesday, April 8, 2020  Spokane, Washington  Est. May 19, 1883
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California expands water restrictions to those with oldest irrigation rights

Farmer Gino Celli climbs out of a irrigation canal that is covered in dried salt on a field he farms near Stockton, Calif., in May. (Associated Press)
Farmer Gino Celli climbs out of a irrigation canal that is covered in dried salt on a field he farms near Stockton, Calif., in May. (Associated Press)
By Bettina Boxall Los Angeles Times

LOS ANGELES – For the first time in nearly 40 years, California regulators are telling more than 100 growers and irrigation districts with some of the oldest water rights in California that they have to stop drawing supplies from drought-starved rivers and streams in the Central Valley.

The curtailment order, issued Friday by the State Water Resources Control Board, had been expected for weeks. Earlier this spring, the board halted diversions under about 8,700 junior rights. With snowmelt reduced to a trickle this year, there simply isn’t enough water flowing in rivers to meet the demand of all those with even older rights predating 1914.

And as flows continue to decline, board officials said they expect to issue more curtailments, stopping river pumping by more senior diverters.

The effect of the curtailments, which affect water users with rights dating to 1903, will vary. Many have water in storage that they can continue to use. Utilities can keep using flows for hydroelectric power production as long as the water is returned to the rivers. Some growers and ranchers also have groundwater supplies that are unaffected by the order.

A few communities, including Chico and Nevada City, have to stop river withdrawals under the order. But Thomas Howard, the state board’s executive director, said they have alternative supplies. “Each water-right holder has different options available to them,” he added.

Still, the fact that the state is reaching back more than a century in the hierarchy of California water rights highlights the withering hold of a drought that has also led to the state’s first mandatory cuts in urban use.

The last time regulators ordered those with pre-1914 water rights to stop diversions was in the 1976-77 drought. Those curtailments were not as geographically widespread as Friday’s, which applies to the Sacramento and San Joaquin river watersheds as well as the Sacramento-San Joaquin Delta.

But the 1977 curtailments went back further in time. On some river stretches, they stopped withdrawals by all senior diverters.

Despite the 1977 precedent, it is likely that Friday’s order will spark appeals to the board as well as legal challenges.

“People are so dug into their rights that regardless of what we do it’s likely they will ask for a rehearing,” Delta Watermaster Michael George said last month. “There’s going to be lots of litigation coming out of this.”

Within hours of the board’s announcement, officials of the Oakdale Irrigation District in the San Joaquin Valley issued a statement saying that they were ready to seek a court injunction to put a hold on the curtailment.

“The water board is using a bulldozer when it needs a scalpel,” said Steve Knell, the district’s top official. “It does not have enough data and information to support this decision. It is based on estimates and unverified claims.”

In an interview, Knell said the district has supplies stored in several reservoirs that it can continue to draw from. “This is more of a legal issue,” he added, arguing that the state doesn’t have the authority to manage pre-1914 rights, nor does the board have accurate data on diversions by junior rights holders.

“The senior rights holders are adamantly opposed to oversight or control,” he said. “We do a good job of managing our water among our water rights group.”

In California and the West, most rights to surface water are based on when the water was first diverted and used, a system known as “first in time, first in right.” The oldest claims date to the Gold Rush, when miners sucked water from streams and used it to blast gold out of the Sierra Nevada foothills.

The state didn’t start issuing water diversion permits until 1914, the dividing line between senior and junior rights.

Friday’s curtailments apply to 86 senior rights holders in the Sacramento River watershed, 14 holders in the San Joaquin River watershed and 14 in the delta. Because some holders have multiple rights, the total number curtailed Friday was 276. Those with riparian rights were not affected.

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