Los Angeles Times

Up a dry creek

- By Jay Famigliett­i Jay Famigliett­i is the senior water scientist at the NASA Jet Propulsion Laboratory/Caltech and a professor of Earth system science at UC Irvine.

Given the historic low temperatur­es and snowfalls that pummeled the eastern U.S. this winter, it might be easy to overlook how devastatin­g California’s winter was as well.

As our “wet” season draws to a close, it is clear that the paltry rain and snowfall have done almost nothing to alleviate epic drought conditions. January was the driest in California since record-keeping began in 1895. Groundwate­r and snowpack levels are at all-time lows. We’re not just up a creek without a paddle in California, we’re losing the creek too.

Data from NASA satellites show that the total amount of water stored in the Sacramento and San Joaquin river basins — that is, all of the snow, river and reservoir water, water in soils and groundwate­r combined — was 34 million acre-feet below normal in 2014. That loss is nearly 1.5 times the capacity of Lake Mead, America’s largest reservoir.

Statewide, we’ve been dropping more than 12 million acre-feet of total water yearly since 2011. Roughly two-thirds of these losses are attributab­le to groundwate­r pumping for agricultur­al irrigation in the Central Valley. Farmers have little choice but to pump more groundwate­r during droughts, especially when their surface water allocation­s have been slashed 80% to 100%. But these pumping rates are excessive and unsustaina­ble. Wells are running dry. In some areas of the Central Valley, the land is sinking by one foot or more per year.

As difficult as it may be to face, the simple fact is that California is running out of water — and the problem started before our current drought. NASA data reveal that total water storage in California has been in steady decline since at least 2002, when satelliteb­ased monitoring began, although groundwate­r depletion has been going on since the early 20th century.

Right now the state has only about one year of water supply left in its reservoirs, and our strategic backup supply, groundwate­r, is rapidly disappeari­ng. California has no contingenc­y plan for a persistent drought like this one (let alone a 20-plus-year megadrough­t), except, apparently, staying in emergency mode and praying for rain.

In short, we have no paddle to navigate this crisis.

Several steps need be taken right now. First, immediate mandatory water rationing should be authorized across all of the state’s water sectors, from domestic and municipal through agricultur­al and industrial. The Metropolit­an Water District of Southern California is already considerin­g water rationing by the summer unless conditions improve. There is no need for the rest of the state to hesitate. The public is ready. A recent Field Poll showed that 94% of California­ns surveyed believe that the drought is serious, and that one-third support mandatory rationing.

Second, the implementa­tion of the Sustainabl­e Groundwate­r Management Act of 2014 should be accelerate­d. The law requires the formation of numerous, regional groundwate­r sustainabi­lity agencies by 2017. Then each agency must adopt a plan by 2022 and “achieve sustainabi­lity” 20 years after that. At that pace, it will be nearly 30 years before we even know what is working. By then, there may be no groundwate­r left to sustain.

Third, the state needs a task force of thought leaders that starts, right now, brainstorm­ing to lay the groundwork for long-term water management strategies. Although several state task forces have been formed in response to the drought, none is focused on solving the long-term needs of a drought-prone, perenniall­y waterstres­sed California.

Our state’s water management is complex, but the technology and expertise exist to handle this harrowing future. It will require major changes in policy and infrastruc­ture that could take decades to identify and act upon. Today, not tomorrow, is the time to begin.

Finally, the public must take ownership of this issue. This crisis belongs to all of us — not just to a handful of decision-makers. Water is our most important, commonly owned resource, but the public remains detached from discussion­s and decisions.

This process works just fine when water is in abundance. In times of crisis, however, we must demand that planning for California’s water security be an honest, transparen­t and forward-looking process. Most important, we must make sure that there is in fact a plan.

Call me old-fashioned, but I’d like to live in a state that has a paddle so that it might also still have a creek.

The “wet” season wasn’t, and with one year of water supply left, California needs to take steps today, not tomorrow.

Newspapers in English

Newspapers from United States