Tag: conservation

Drought Watch: The End of the Rainy Season

This is part of a continuing series on the impact of the drought.

California’s rainy season is pretty much over. Most years, 85% of the wet season’s rain and snow has already fallen by late March. While rain often falls in April and May, it is rarely enough to make a big difference in the overall water picture, and the forecast is now quite dry.

That means California’s water managers now have a good idea how much water will be available in the state’s reservoirs, snowpack, and groundwater basins.

The news is not heartening. While parts of the north coast did fairly well, the rest of California did not. The Sierras received about half of annual average precipitation. And as the record warm temperatures of last year have persisted, the snowpack is at an all-time low (now 8% of average). As California’s struggling ski area operators know all too well, most precipitation fell as rain, rather than snow.

Statewide, reservoir storage is about half of capacity. However, the almost non-existent snowpack provides no prospect for improvement in storage this spring—something water managers count on in most years.

This fourth consecutive dry year have led to some dire, even apocalyptic predictions, including that California will run out of water within a year. While managing this drought will be difficult, even painful in some regions, the state is not going to run out of water and there is no need to panic. Rather, prudent adjustments to water scarcity that began earlier in the drought will continue and intensify. These include:

  • Increased urban conservation. Californians cut their per capita water use last year, but they can do more. In particular, there is ample room to reduce outdoor watering, which makes up roughly half of urban water use. The State Water Resources Control Board has tightened restrictions on outdoor water use, and many municipalities will increase their conservation efforts.

  • Increased water trading. Robust water markets, involving willing sellers and buyers, are an effective way to manage scarcity. The Australians found this to be helpful during their crippling Millennium Drought. California’s water market helped many farmers keep their orchards alive in 2014. This year, cities with dwindling drought reserves are also looking to buy water – as illustrated by the recent deal between Sacramento Valley rice farmers and Metropolitan Water District, Southern California’s large water wholesaler. As demand for trading increases, so will water prices.

  • Increased use of groundwater. Groundwater pumping has grown since the drought’s onset, but California’s reserves of groundwater remain large—particularly compared to surface storage. Groundwater will continue to make up shortfalls in surface water this year. Unfortunately, past failures to manage groundwater have lowered the water tables in many basins, making water more expensive to extract and often requiring drilling new, deeper wells. The new Sustainable Groundwater Management Act will eventually address this problem, but not soon enough for this drought.

In short, California is not running out of water, just cheap water. A fourth consecutive year of drought will make both water scarcity and management possibilities increasingly apparent.

Drought Watch: Priorities for Cities and Farms

This is part of a continuing series on the impact of the drought.

A spate of recent news articles have reinforced what most Californians already know: the state is locked in a grim drought, with unusually warm temperatures and near-record low snowpack. Since this is the fourth consecutive dry year, reserves are low and water scarcity will be acute in some farming regions and watersheds.

In our new report, Policy Priorities for Managing Drought, we highlight four areas that need reform to reduce the economic, social, and environmental harm from drought in California: 1) improving water use information; 2) setting clear goals and priorities for public health and the environment; 3) promoting water conservation and more resilient water supplies; and 4) strengthening environmental management.

The third item on this list – promoting conservation and more resilient supplies – refers to steps needed to improve the ability of both urban and agricultural areas to weather droughts. California’s urban water agencies are already in much better shape than they would have been, thanks to significant investments since the early 1990s in conservation, local storage, alternative supplies like highly treated wastewater, and new connections between neighboring water systems. But cities need to redouble their efforts. In particular, they can do much more to reduce landscape irrigation, which still accounts for half of urban use. Financial incentives like rebates for replacing turf with more drought-tolerant plants can help. Yet to encourage widespread change in habits, cities also need to adopt water rates that send a strong signal to customers who are using too much water outdoors.

For California’s farmers—who require large volumes of water for irrigation during the dry growing season—the options are somewhat different. Investments in more efficient irrigation technology provide numerous benefits: higher quality produce, lower use of pesticides and chemicals, and higher yields. But in most places this technology doesn’t free up new water. That’s because the water not consumed by crops in less efficient irrigation systems either returns to rivers or recharges groundwater basins, where it gets reused. For farmers, one of the best drought adaptation tools is a well-functioning water market, which can help get water from willing sellers to willing buyers.

The market helped many farmers keep their orchards and vineyards alive last year, and it will help this year too. (And as the recent purchase of some water by Southern California’s large urban water wholesaler demonstrates, the market can also help cities bolster critical drought reserves.)

Yesterday the State Water Resources Control Board reauthorized—and amped up—some urban outdoor water use restrictions as a way to push the conservation efforts of local water agencies. In our report, we suggest the board could also take steps to promote the water market. In particular, some local irrigation districts that have abundant supplies still restrict sales outside of their districts, even when farmers in these districts would be willing to sell. Just as excess landscape watering in cities can be considered unreasonable during droughts, prohibiting water trades could also be considered unreasonable. Allowing scarce water to move to where it’s most needed would help all of California get through this drought.

Drought Watch: Managing—and Learning from—Scarcity

This is part of a continuing series on the impact of the drought.

California is entering a fourth year of drought. The welcome, wet conditions that appeared earlier this winter gave way to dryness during the latter half of December. Although forecasts suggest that wet weather may return later this month, the long-term moisture deficit is unlikely to be erased, leaving the state to continue grappling with water scarcity.

As unpleasant as droughts are, they offer an opportunity to assess how well prepared California is for managing its water resources. The usual approach to learning from droughts is to conduct assessments after the drought ends. Unfortunately, once the rains come—as they certainly will—the pressure to prepare for the next drought is greatly reduced.

Recognizing the need to learn from drought while it is ongoing, PPIC will hold a half-day conference on January 12 in Sacramento. The event, supported by the California Water Foundation, will include two keynote addresses—one on current drought conditions by the state climatologist and another from a member of the Australian National Water Commission on how that country managed an unprecedented, 13-year-long drought. In addition, there will be a conversation with four members of the California State Legislature on legislative priorities for addressing droughts. Finally, panels of state and local leaders will focus on institutional responses to the current drought and proposals for policy reforms in three areas:

Managing urban and agricultural water scarcity. To date, the consequences of the latest drought have varied greatly across California’s geographical regions and economic sectors. Impacts in large urban areas have been modest, while many smaller community water systems have faced significant shortages. Agriculture has been hit particularly hard, but the intensity of the crisis has varied depending on geography and availability of groundwater. The panel will explore wide-ranging proposals to reduce the effects of future droughts on urban and agricultural sectors.

Conserving ecosystems during drought. Acute water scarcity has posed a major challenge for the state and federal agencies charged with managing ecosystems that support fish and waterfowl. Difficult decisions, including temporary reductions in environmental standards and trade-offs between species, were made “on the fly” with limited scientific information. The panel will review lessons learned during this drought and consider new approaches.

Water allocation during drought. The state’s century-old law that governs water rights played a central role in managing the drought during 2014. For the first time since 1977, the State Water Resources Control Board had to restrict surface water use by some water rights holders. In addition, the board had to make tough choices about how to manage water for the environment and how to allocate water to protect public health. The panel will examine the strengths and weaknesses of the current approach to water rights, along with alternative approaches that might reduce conflict during drought.

The conference is now fully booked, with more than 400 participants registered to attend. But you can follow the proceedings via live webcast. PPIC will also post videos of the sessions after the event.

Drought Watch: California as a Testing Ground

This is part of a continuing series on the impact of the drought.

An international consortium of water economists gathered at the World Bank headquarters in Washington, D.C. earlier this fall for two days of meetings on water policy research. The timing was opportune, as the World Bank – which provides financial and technical assistance to developing economies around the globe – recently reorganized to provide a new emphasis on water resources. The conference theme was the economics of water conservation and efficiency, with researchers looking at the role of technology, pricing, and institutions to effectively and efficiently manage water resources under conditions of increasing scarcity. In light of the national and international attention to California’s ongoing drought, I was asked to give keynote remarks about lessons from California for other regions of the world.

I highlighted four central ideas. (My presentation is 22 minutes into this video.) First, urban areas the world over can improve drought resilience by diversifying their water portfolios, rather than relying on a single source of water. Second, although conservation is important, policymakers should be mindful that improved irrigation efficiency is not a panacea to cope with drought, because much of the water “saved” is already being reused by others downstream.

Third, sustainable groundwater basin management—the approach now called for under California’s historic groundwater legislation—is an invaluable drought management tool because it means more groundwater will be available to help get through dry times. But getting there can imply costly trade-offs in basins that rely heavily on groundwater, requiring institutional and financial support to help water users make the transition.

And fourth, like California, many regions can benefit from repurposing their storage and conveyance infrastructure to better cope with droughts and the growing water scarcity expected with climate change. In particular, storing more water for dry years in groundwater basins, and using surface reservoirs for seasonal storage and flood protection, can be cost-effective ways to adapt to an increasingly variable climate.

Drought Watch: Rethinking Urban Water Pricing

This is part of a continuing series on the impact of the drought.

The California Water Resources Control Board adopted a statewide policy last month requiring local agencies to implement drought plans, including restrictions on outdoor water use. Local agencies have responded in a variety of ways. Some have imposed mandatory cutbacks while others are still only asking their customers to make voluntary cutbacks. Mandatory water use restrictions can be more effective and, according to the July PPIC Statewide Survey, 75 percent of Californians say they strongly favor them. So why aren’t more water agencies enacting mandatory cutbacks during this crisis?

Last month, Jay Lund—a professor of civil and environmental engineering at UC Davis and an adjunct research fellow at PPIC— outlined some of the factors that might cause local agencies to shy away from mandatory restrictions. One important factor is that when conservation measures work, agencies sell less water and their revenues fall. But the costs of providing water services do not decrease as much, so agency balance sheets can end up in the red. As a result, investments in system maintenance and upgrade generally take a hit, and agencies often have to increase rates. This sends a confusing signal to customers, who just did what was asked of them.

There is an alternative: drought pricing. Charging more per gallon during drought years provides an additional conservation incentive and ensures that agencies can cover costs while they are selling less water. According to a June survey by the State Water Resources Control Board, only 4 percent of urban agencies have enacted drought pricing strategies. The city of Roseville is one community using the drought pricing tool, which was adopted—and vetted with customers—before the drought hit. In June, Roseville implemented a temporary 15 percent drought surcharge while also mandating a 20 percent reduction in water use.

Like most things that alter the status quo, drought pricing policies require effective communication with ratepayers. Agencies need to emphasize the need for higher prices alongside increased conservation during droughts to ensure customer buy-in. But a big advantage of a drought pricing policy is that customers understand in advance that prices need to go up to keep their water system solvent, rather than feeling blindsided by a rate increase after the fact. While they require additional effort—and advance planning—by local agencies, drought pricing policies result in better financials and customer relations while contributing to the primary goal of reducing water use during times of scarcity.

Drought Watch: Trends in Urban Water Use

This is part of a continuing series on the impact of the drought.

Most of California is now in an exceptional drought, but water use statewide has actually increased over the last year. In response, the state has imposed short-term restrictions intended to help us get through the current drought. As state and local water agencies look beyond the current emergency for ways to adapt to a future in which droughts are likely to be more frequent and more severe, it is instructive to examine and compare urban use in two relatively normal water years, 2000 and 2010.

First, the good news: Total statewide urban water use (for residential, commercial, and industrial purposes) decreased by 12 percent from 2000 to 2010, even as California’s population increased by more than three million. Reductions have been especially significant in central and southern California, where investments in conservation programs and new technologies seem to be paying off. In the commercial and industrial sectors, water use fell 36 percent and 18 percent, respectively, while residential interior water use declined by 20 percent overall and 27 percent per capita. The Great Recession probably played a role in these reductions, so it will be interesting to see if this trend holds as the economy continues its recovery.

Now for the bad news: Outdoor water use for both residential exteriors and large (commercial or public) landscapes rose 12 percent across the state between 2000 and 2010. This trend was largely driven by increases in southern California—in marked contrast to the region’s reductions in indoor water use. And it is likely to persist as California’s population continues to grow, especially in hot and arid inland areas with a higher proportion of single-family homes (which use twice as much water outdoors per household as multi-family buildings) and large lots.

One important takeaway is that more stringent building codes, increasing efficiency requirements, and new technologies seem to have resulted in more efficient indoor water use. But when it comes to landscaping, any improvements in irrigation technology seem to have been offset by our taste for large lawns and plants that need a lot of water (and our habit of overwatering them). To encourage long-term reductions in outdoor water use, agencies can implement new pricing structures, turf buy-back programs, and public education programs emphasizing drought-friendly landscaping. After our current water emergency ends, these long-term incentives and outreach efforts can help us be better prepared for future droughts.

(The map below shows the change in per capita outdoor urban water use between 2000 and 2010 in each hydrologic region. To see details of the state’s hydrologic regions, including county boundaries, visit our Map Room.)

Chart source: California Department of Water Resources.

Drought Watch: Our Thirsty Lawns

This is part of a continuing series on the impact of the drought.

The unprecedented restrictions on outdoor water use that the state enacted this week send a message that Californians need to conserve more water. But we can do more to move toward sustainable consumption. To help the state get through this drought—which may continue into 2015—and prepare for a future that will include repeated droughts, local agencies should go further to encourage long-term changes in how we use water outdoors.

Outdoor water demands—which account for roughly half of all urban water use—are highest during the hot, dry summer months. Experts regularly cite reductions in landscape watering as “low hanging fruit” during droughts. But, as we’ve learned, it is not enough to just ask people to cut back: during the 2007–2009 drought, outdoor water use did not significantly decline despite repeated calls for conservation.

The main culprit is Californians’ love affair with lawns. Not only do lawns require a lot of water to look good, but people also tend to overwater them. Water agencies should seize the opportunity presented by the drought—and the publicity surrounding the new restrictions—to offer incentives for switching out thirsty lawns. For instance, Long Beach has a turf buyback program that offers rebates to customers who replace grass lawns with low-water-using plants—which have the added benefit of lending themselves to more-efficient irrigation systems. Finding attractive alternatives to lawns is easier than ever before, now that major garden retailers offer a range of California-friendly plants. Gone are the days of cacti and gravel being the only options.

Water pricing can also motivate customers to make the switch. Tiered rate structures—which charge a higher price per gallon for higher use—help send a message about the real costs of our landscaping choices. More than half of urban water agencies currently have some form of tiered rates, though recent legal challenges to their constitutionality under Prop 218 threaten to undermine these very important tools.

During droughts, it makes sense for water agencies to charge higher prices per gallon than they do in normal years. This provides additional conservation incentives while ensuring that agencies bring in enough to cover costs when they are selling less water. The city of Roseville, for example, implemented a temporary 15 percent drought surcharge starting in June. But according to a State Water Resourses Control Board survey, only 7 percent of agencies have enacted drought pricing strategies this year.

So far, no region has reached the governor’s 20 percent conservation goal, and water use has actually increased in some regions. Over the next few months we will see whether increased watering restrictions and threat of fines can deliver the conservation message to all Californians.

Drought Watch: Putting Some Myths to Rest

This commentary was first published by the Sacramento Bee on July 6, 2014. Drought Watch is a continuing series on the PPIC Blog.

As the effects of the drought worsen, two persistent water myths are complicating the search for solutions. One is that environmental regulation is causing California’s water scarcity. The other is that conservation alone can bring us into balance. Each myth has different advocates. But both hinder the development of effective policies to manage one of the state’s most important natural resources.

Let’s consider the first myth, that water shortages for farms are the result of too much water being left in streams for fish and wildlife.

Continue reading on Sacbee.com.

Drought Watch: Regional Solutions

This is part of a continuing series on the impact of the drought.

Across California, local water agencies are scrambling to apply for new state matching grants authorized under February’s emergency drought legislation. The program aims to accelerate the use of remaining state bond funds for integrated regional water management: activities in which local agencies team up to generate mutual benefits. One example—water suppliers and stormwater agencies that work together to incorporate captured stormwater into local water supplies. Such projects can simultaneously enhance water supply reliability and the quality of water in rivers and coastal areas.

Regional integration has already led to some significant successes, most notably the enhanced ability of urban water suppliers in Southern California and the Bay Area to cope with the current drought. Successes include ramping up water conservation and recycled wastewater storage to increase supplies in storage, and building new connections between local water systems to enable emergency sharing. Outside funds are often needed to jump start these collaborations, both to encourage innovation and to enable some partners—such as stormwater agencies – to participate even if they don’t have the necessary funds.

But as we showed in our study Paying for Water in California, integrated regional water management is on the brink of fiscal failure because state bond funds are running out. Both the legislature and local water agencies have pushed the idea that bonds should continue to provide these dollars, and the major bond proposals under consideration include substantial new funds for this purpose.

But there might be a better way: adding a small statewide surcharge on water use to support regional projects. Local water agencies have often rejected this idea, arguing that if they send money to Sacramento they won’t see it again. But what if the funds go directly to the regions?

Here’s how we think this could work. The legislature (or state voters) would pass the surcharge and set broad criteria for funding eligibility. The funds would be apportioned to the state’s 12 principal hydrologic regions—the large basins that are already used to divvy up bond funds. But rather than having state agencies award the grants, this task would go to new Regional Water Commissions—regional counterparts to the California Water Commission, the state body tasked with awarding matching grants for storage projects under most bond proposals.

Though more politically tricky to pass than a bond, the statewide water surcharge would have numerous advantages. The revenues would be more reliable than bond funds. And relying on Regional Water Commissions to allocate these dollars could encourage broader collaborations than we have seen from the state-sponsored grant program, which has nearly 50 planning regions, often too small to reap the real benefits of integration. Many groundwater basins, for instance, have different boundaries than the current planning regions, and groundwater agencies could use assistance from these regional funds to support better management.

Finally, this statewide option is preferable to creating local or regional surcharges, which can be difficult to raise without approval of two-thirds of local voters. To raise $200 million annually—the amount that’s been available through bonds—a surcharge 7.5 cents/1,000 gallons on urban water bills would suffice. This would increase the average cost of tap water by just 2.8 percent, while creating a valuable incentive fund that helps local water managers enhance the quality and reliability of regional water supplies. As part of a package with a new bond devoted to areas of true statewide need, a statewide water surcharge would help ensure that our water system can support a healthy economy, society, and environment.