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Pierce on New L.A. Water Restrictions

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The Los Angeles Times spoke to Gregory Pierce, co-director of the UCLA Luskin Center for Innovation, about new watering restrictions implemented by the Los Angeles Department of Water and Power. Due to worsening drought conditions and reduced water supplies, residents of the city of Los Angeles will be assigned two watering days a week based on their addresses — Monday and Friday for odd addresses and Thursday and Sunday for even ones. “It’s a fine way to go for now, but I would recommend not hesitating to go to one-day [watering] and seeing those plants die if necessary,” said Pierce, who leads the Human Right to Water Solutions Lab housed at the Center for Innovation.

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Pierce on Rethinking Water Usage in California

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Gregory Pierce, co-executive director of the UCLA Luskin Center for Innovation, spoke to Fast Company about new measures to conserve water in Los Angeles County. The current megadrought in the western United States is expected to last until 2030. In response, Los Angeles is implementing initiatives such as lawn-free landscaping, better capture of stormwater and new water recycling technology. While some have proposed desalination to increase the water supply, Pierce said the process is energy-intensive and creates concentrated brine that can be harmful to marine life. “Right now [desalination is] neither environmentally nor economically good enough to do, and I think we should do other things first,” he said. At some point, though it’s very controversial, the state may also rethink how water is used by agriculture, he added. Pierce said it may make more sense to grow produce in regions that get more rain than places such as the Central Valley.

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Water Should Be Affordable for All, Pierce Says

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Gregory Pierce, an adjunct assistant professor of urban planning, spoke to KQED about his concerns about equity in the attempt to provide clean drinking water to California cities. In response to the drought, Marin County is considering building a desalination plant and pipeline that would draw in water from the San Francisco Bay. After studying the impact that desalination could have on low-income and marginalized communities, Pierce concluded that “desalination can be part of the answer [in California], but it’s not the best answer right now or in the near term.” Using desalination to produce drinking water from seawater fails to encourage people to adopt habits that conserve freshwater resources, and it can also negatively impact the environment. Instead, Pierce argued that recycling water or fixing infrastructure is a faster and less-expensive solution than constructing a desalination plant. “As a concept, desalination sounds good, but it’s not usually delivered equitably,” said Pierce, co-director of the Luskin Center for Innovation at UCLA. “If water is truly a human right, it should be affordable to everyone.”

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Pierce Recommends Investing in Clean Water Now

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Greg Pierce, associate director of the UCLA Luskin Center for Innovation, was cited in a Radio Free article discussing a report he co-authored about access to clean drinking water in California. The Center for Innovation collaborated with the California State Water Resources Control Board and others on the report, which found that 620 public water systems and 80,000 domestic wells are at risk of failing to provide affordable and uncontaminated water — an issue that will cost billions to fix. The report was “the most comprehensive assessment that’s been done on the state level anywhere in the U.S.,” Pierce said. “Drought and access and water quality are all related.” He argued that temporary solutions, like providing bottled water to people whose water systems fail, are more expensive in the long run than fixing systems before they fail.

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Koslov on Managed Retreat for At-Risk Communities

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Assistant Professor of Urban Planning Liz Koslov was featured in a review of Mark Arax’s “The Dreamt Land: Chasing Water and Dust Across California” in the Los Angeles Review of Books. “The Dreamt Land” focuses on the water dramas of the Central Valley in California, including the environmental degradation of the region and the state’s ongoing efforts to manage climatic variability such as drought and fire. Managed retreat refers to the planned unsettling of or relocation from a threatened area, which is becoming an increasingly popular idea among communities in coastal and fire-prone zones. “Retreat is a powerful and evocative word, one that signals a change in direction — something we share the need for as a society even though we do not all live in places that are immediately vulnerable,” Koslov wrote. 

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Enhancing the Resiliency of L.A.’s Water Supply Through Recycling Luskin Center for Innovation is analyzing a plan to recycle all of L.A.’s wastewater by 2035, a project that could be the largest capital water project investment in L.A. this century

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By Colleen Callahan

Analysis by the UCLA Luskin Center for Innovation (LCI) is underway in support of Los Angeles’ goal to recycle all wastewater by 2035 and use it to replenish local groundwater and reduce the need to import water.

“Using recycled water is the next major step in Southern California to ensure needed resiliency against future droughts and earthquakes,” said Nicholas Chow MSc Civil and Environmental Engineering ’16, water engineering project manager for LCI. “Our study could inform construction of a pipeline that provides millions of customers with a new source of clean water.”

According to an announcement by Los Angeles Mayor Eric Garcetti in 2019, the city will stop discarding wastewater to the ocean and instead recycle that water for beneficial use. The plan to meet this goal centers on the Hyperion Water Reclamation Plant, which is the largest wastewater treatment facility west of the Mississippi River. Hyperion receives the vast majority of the city’s total wastewater but currently recycles only 27%. The rest goes into the Pacific Ocean.

The LCI researchers are assessing a proposed Hyperion reuse and groundwater development project that would include construction of $2 billion worth of infrastructure over a decade in order to achieve the city’s 2035 implementation goal. Experts say this project may become the largest capital water project investment for Los Angeles during the 21st century.

In announcing the project, Garcetti framed the effort as L.A.’s next “Mulholland moment,” a reference to the legacy of water chief William Mulholland and the Los Angeles Aqueduct, which opened more than 100 years ago and helped create modern Los Angeles by redirecting water from the Owens Valley hundreds of miles away. City leaders now have an opposite ─ reducing the amount of water imported from far-away.

“Maximizing L.A.’s recycling capacity will increase the amount of water we source locally and help to ensure that Angelenos can count on access to clean water for generations to come,” Garcetti said in his announcement.

The objective of the UCLA study is to estimate the project’s value — specifically, how investing now in recycled water might avoid future costs for rate-paying households and businesses. Researchers are factoring in droughts, seismic events and the rising price of imported water, all of which threaten L.A.’s water supplies.

Commissioned by the Los Angeles Department of Water and Power, the agency responsible for maximizing beneficial use of water treated at the Hyperion plant, the UCLA study is being conducted in collaboration with L.A. Sanitation and Environment, which operates the Hyperion plant.

Save Every Drop While We Still Can International water expert Brian Richter joins California government officials for a panel at UCLA Luskin that stresses urgent need to conserve in an increasingly drought-plagued world

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By Aaron Julian

“Every Californian should think about water the same way they think about electricity — you just don’t waste it.”

This sentiment expressed by Debbie Franco of the California Governor’s Office of Planning and Research is typical of the conservation advice offered by a panel of water experts during a Feb. 22, 2017, presentation at the UCLA Luskin School of Public Affairs.

Spearheading the discussion was Brian Richter, an adjunct professor at the University of Virginia and author of the book “Chasing Water.” Richter outlined the historical relationship between humanity and water. He also explained his ideas to formulate a “water market” that would monetarily encourage responsible water usage on the personal, industrial and governmental levels.

Professor J.R. Deshazo, director of the Luskin Center for Innovation, introduced Brian Richter as part of the Luskin Innovators series. Photo by Les Dunseith

“Disruption needs to happen more on the governmental level,” said Richter about the best approach to lessen overuse and foster more cooperation between city, local and state governments regarding an ongoing world water crisis. An example of intergovernmental partnerships is San Diego’s annual $60-million investment to encourage smarter water use by farmers in the Imperial Irrigation District in return for access to a third of the city’s water supply.

The Luskin Center for Innovation’s Greg Pierce led a question and answer session with the panelists regarding water conservation policy. Photo by Les Dunseith

Water is especially important for California governments and residents in light of the historic drought affecting the region. During a question and answer session led by the Luskin Center for Innovation’s Greg Pierce MA U.P. ’11 UP PhD ’15, panelists discussed how to keep momentum toward sustainable water systems despite recent downpours estimated at about 19 total inches of rain — equal to about 27 billion gallons of water.

Franco argued that the solution to the water issue needs to go beyond collaborative government — it has to become a way of life.

“One of the key elements that we are missing in California are folks that understand water,” she said. “We need people to feel like they are water managers in their own home. That’s an important first step toward a thriving and active participation in local government.”

She said such participation helps propel effective action at all levels. Richter added that “77 percent of all Americans have absolutely no idea where their water comes from.”

He noted a core argument of his book, that in order to have a fully active and informed citizenry, the science and policy communities need to fully understand water themselves.

Panelist Liz Crosson from the Los Angeles Mayor’s Office told the large crowd that attended the session that Los Angeles has instituted a Save the Drop campaign in partnership with the mayor’s fund, working to reach a 20 percent reduction from the 103 gallon per day of water usage per capita in the city. Even if successful, that mark is well short of Australia’s average of 50 gallons per day as noted by Richter in his book and lecture.

The city’s plan involves combating water illiteracy in combination with incentives and restrictions on water use. The city has also updated its rate structure to be more compatible with different socioeconomic brackets.

Still, Crosson warned, “Here in L.A., just because it is raining does not mean our water supply is in much better shape. We are trying to change that, but that’s a long time coming. This is now about a Californian way of life.”

Panelist Angela George of the Los Angeles County Department of Public Works said she believes the most effective methodology would be a campaign to instill in children the techniques and habits of water conservation. “It is important to get into our schools and educate where our water comes from — a local perspective.”

Amid a crowd that included UCLA Luskin students and faculty as well as interested members of the community, passions sometimes ran high, with some questioning whether current efforts and ideas are sufficient to truly improve water conservation.

Panelists noted the importance of individuals working closely with local government in order to push for reforms they want to see.

“You have to find out how to mobilize the political wherewithal,” Franco said. “Show up and know what’s going on, and keep telling what you want.”

The lecture and panel discussion were put together by the UCLA Luskin Center for Innovation in partnership with Island Press as part of a speaker series known as Luskin Innovators.

Angelenos On Track to Meet 2017 Water Conservation Goals New study by the UCLA Luskin Center for Innovation reinforces importance of turf removal

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Two years after Mayor Eric Garcetti signed Executive Directive 5 (ED 5), putting in place strong, emergency drought response measures for the City of Los Angeles, water customers of the Los Angeles Department of Water and Power (LADWP) remain ahead of schedule in meeting citywide water conservation goals.

Water use by LADWP customers remains down approximately 20 percent from 2014 levels, meeting the goal for 2017 as set forth in ED 5 and the LA’s Sustainable City pLAn ahead of schedule. LADWP water officials attribute much of the success to Angelenos’ continued actions to reduce outdoor watering and replace water-thirsty turf with drought tolerant landscapes. Approximately 50 percent of residential water use in Los Angeles is attributed to uses outdoors and LADWP’s turf replacement rebate program has resulted in 37 million square feet of turf being removed in the City of Los Angeles, saving 1.6 billion gallons of water each year.  That’s enough water to supply 15,000 LA households each year. LADWP currently provides participating customers a rebate of $1.75 per square foot to rip out turf and replace it with California friendly landscaping. The rebate level has been maintained by LADWP even after the Metropolitan Water District (MWD) eliminated its additional $2.00 per square foot rebate in 2015.

A new study by UCLA’s Luskin Center for Innovation shows that $1.75 per square foot is a reasonable amount that pays off for both residential households who utilize the rebate and LADWP ratepayers.

The Luskin Center’s report, Turf Replacement Program Impacts on Households and Ratepayers: An Analysis for the City of Los Angeles, answers two questions: Under what conditions does participation in the turf replacement program provide financial benefits to households? And is the turf replacement program a reasonably cost effective investment for utilities and ratepayers?

In order to assess the economics of lawn replacement from the household perspective the report measures the impact of different rebate levels, turf replacement costs, climate zones (determined by different evapotranspiration rates across the city), and future expected water pricing on household financial benefits. The report calculates the payback periods for ratepayers based on varying levels of household participation in the turf replacement program and different levels of rebates. Rebates offered at $1.75 result in a payback period for typical households and ratepayers of approximately 10 years, comparable to other investments like solar.

“Angelenos are the water heroes of California — we’ve pulled up 37 million square feet of thirsty turf, more than two-thirds of the state’s target, and reduced our water use 20 percent,” said Mayor Eric Garcetti. “We have made amazing progress in the two years since I signed an executive directive to respond to our drought, and the study released Monday shows that our incentives are working. But we can always do more, and I’m proud of our Department of Water and Power for making sensible, effective improvements to our turf rebate program.”

“Turf replacement programs, when well designed, are an essential conservation tool for communities to become more drought and climate resilient,” said J.R. DeShazo, director of the Luskin Center for Innovation at UCLA’s Luskin School of Public Affairs.

To further the benefits of its turf rebate program, LADWP recently updated the program guidelines. The amended terms and conditions will continue to promote the installation of native and California Friendly low water-use plants while ensuring each project incorporates sustainable design elements that benefit the customer and help contribute to the City’s future water conservation goals.

Changes to the turf rebate program include:

No longer providing rebates for the installation of synthetic turf;

Increasing California Friendly plant coverage required from 40% to 50%;

Limiting the amount of rock, gravel, or decomposed granite to 25% of the total project;

Incorporating rainfall capture techniques in project designs;

No longer permitting the use of synthetic or chemically treated mulch;

And recommending the use of biodegradable (natural/organic) weed barriers (instead of synthetic weed barriers).

“These turf rebate guideline changes allow LADWP to push an already positive sustainability program for our environment to an even higher, healthier standard,” LADWP General Manager David Wright said.

The program changes will assist LADWP customers in better capturing, conserving, and reusing water to prevent runoff on their property and reduce water demand. In addition to these water-saving benefits, by requiring program participants to minimize the use of materials such as gravel, pavers, decomposed granite, and synthetic turf – materials that often create a “heat island” effect on properties by absorbing the sun’s heat – LADWP aims to lower surface and temperatures on properties. This added benefit may assist customers in limiting energy use by reducing the need for air conditioning.

To learn more about LADWP’s turf rebate and other water conservation programs, please visit myLADWP.com.

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