Estuary News, June 2013

San Francisco Estuary Partnership (SFEP) | June 15th, 2013

Evaluating the Effects of Turf-Replacement Programs in Los Angeles County

University of California, Los Angeles (UCLA) | August 4th, 2017

In 2014, the Metropolitan Water District of Southern California (MWD) undertook an unprecedented investment to incentive turf replacement throughout Southern California i

In 2014, the Metropolitan Water District of Southern California (MWD) undertook an unprecedented investment to incentive turf replacement throughout Southern California in response to the state’s serious drought. MWD devoted $350 million to the program, resulting in more than 46,000 rebate payments to remove 165 million square feet of turf. The funding boost served as a tremendous natural experiment to better understand the effects turf replacement programs. As part of an evaluation of this program, UCLA and the University of Utah examined socio-economic and demographic characteristics of program participation and assessed changes in vegetation and landscapes of front yards resulting from turf replacement. We examined address-level records of 24,921 participants who applied for turf replacement rebates between February 2014 and April 2016 in Los Angeles (LA) County. We analyzed the socioeconomic and spatial determinants of program participation. Further, we used Google Earth Street View to characterize the landscapes and plants resulting from turf replacement based on a set of randomly selected participating properties. We ascertained the types of turf replacements that were installed and developed a classification system for landscape design types.

Facing the Climate Gap: How Environmental Justice Communities are Leading the Way to a More Sustainable and Equitable California

University of Southern California (USC) | October 31st, 2012

California has traditionally led the nation in protecting and preserving the environment – and we have proudly continued the trend with the 2006 passage and ong

California has traditionally led the nation in protecting and preserving the environment – and we have proudly continued the trend with the 2006 passage and ongoing implementation of the California Global Warming Solutions Act (AB 32). Aimed at reducing greenhouse gas emissions (GHGs) and slowing climate change, AB 32 came under political attack in 2010 when an initiative, funded largely by oil refiners, sought to delay application of the legislation’s rules. Fortunately, voters soundly rejected that effort, but many observers have worried that California’s concerns about climate could wane, particularly since the actual impacts of climate change can seem abstract and far-off. Against this backdrop, a wide range of community-based organizations have been working to “make it real” by connecting the dots between global warming and human impacts, and by helping residents adapt now and not later. In what might be a surprise to some observers, many of these organizations are working with low-income communities of color – those often stereotyped as the least concerned about climate change.

Feasibility Study for a Sacramento-San Joaquin Delta National Heritage Area

Delta Protection Commission (DPC) | June 4th, 2012

In Fall 2009, the California State Legislature passed a comprehensive package reforming governance of the Sacramento-San Joaquin Delta (Delta) and related aspects of stat

In Fall 2009, the California State Legislature passed a comprehensive package reforming governance of the Sacramento-San Joaquin Delta (Delta) and related aspects of statewide water management. In Section 85301 of Senate Bill X7-1 (Delta Reform Act of 2009), the Legislature charged the Delta Protection Commission (DPC) with developing: “A proposal to protect, enhance, and sustain the unique cultural, historical, recreational, agricultural, and economic values of the Delta as an evolving place....The Commission shall include in the proposal a plan to establish state and federal designation of the Delta as a place of special significance, which may include application for a federal designation of the Delta as a National Heritage Area.” This feasibility study has been undertaken in order to fulfill this legislative mandate, which upon acceptance of this study by the DPC, it will be submitted to a Delta Congressional Representative to introduce legislation to establish a Delta National Heritage Area (NHA). The study inventories and describes resources of the region which are supportive of the proposed NHA’s story and themes that make the area a place of national significance. The study also proposes how the NHA will be managed and organized to coordinate heritage area activities. Additionally, local groups who support the NHA are listed, along with letters of support; and organizations who are interested in potentially serving as partners on NHA activities are described, along with letters of partnership commitment. During the course of this process a separate effort was initiated to establish a Delta NHA. In January 2011, Senator Dianne Feinstein introduced legislation into the Senate, with companion legislation introduced by Congressman John Garamendi into the House of Representatives to designate a Delta NHA, with the DPC as the management entity. The DPC has been monitoring the progress of this legislation while continuing to work on this feasibility study. A NHA is a place designated by the United States Congress where natural, cultural, historical and recreational resources combine to form a cohesive, nationally-distinctive landscape arising from patterns of human activity shaped by geography. These areas tell nationally important stories about our nation and are representative of the national experience through both the physical features that remain and the traditions that have evolved within them. The DPC developed this study with a process that incorporated public involvement throughout its entirety. A variety of activities were undertaken to acquire stakeholder input, including: public meetings, public presentations, stakeholder interviews, public review memos, and project study team meetings.

Framing the Problem of Flood Risk and Flood Management in Metropolitan Los Angeles

American Meteorological Society (AMS) | January 1st, 2023

This paper develops the concept of flood problem framing to understand decision-makers’ priorities in flood risk management in the Los Angeles Metropolitan Region in Ca

This paper develops the concept of flood problem framing to understand decision-makers’ priorities in flood risk management in the Los Angeles Metropolitan Region in California (LA Metro). Problem frames shape an individual’s preferences for particular management strategies and their future behaviors. While flooding is a complex, multifaceted problem, with multiple causes and multiple impacts, a decision-maker is most likely to manage only those dimensions of flooding about which they are aware or concerned. To evaluate flood decision-makers’ primary concerns related to flood exposure, vulnerability, and management in the LA Metro, we draw on focus groups with flood control districts, city planners, nonprofit organizations, and other flood-related decision-makers. We identify numerous concerns, including concerns about specific types of floods (e.g., fluvial vs pluvial) and impacts to diverse infrastructure and communities. Our analyses demonstrate that flood concerns aggregate into three problem frames: one concerned with large fluvial floods exacerbated by climate change and their housing, economic, and infrastructure impacts; one concerned with pluvial nuisance flooding, pollution, and historic underinvestment in communities; and one concerned with coastal and fluvial flooding’s ecosystem impacts. While each individual typically articulated concerns that overlapped with only one problem frame, each problem frame was discussed by numerous organization types, suggesting low barriers to cross-organizational coordination in flood planning and response. This paper also advances our understanding of flood risk perception in a region that does not face frequent large floods.

Grand theft water and the calculus of compliance

Nature Portfolio (Springer Nature) | August 24th, 2020

Water crises constitute a challenge for humanity. Uncertain supply and growing demand are driving higher water theft, particularly by agricultural users who account for a

Water crises constitute a challenge for humanity. Uncertain supply and growing demand are driving higher water theft, particularly by agricultural users who account for approximately 70% of global use. However, research into water theft is underexplored in all disciplines. This paper provides a conceptual framework and modelling approach designed to improve understanding of both individual and institutional barriers to water theft. The framework and model explore how effective detection, prosecution, conviction and penalties can be assessed. Three case studies test the validity of our framework. Our findings suggest that while individuals and companies may be responsible for the act of theft, the phenomenon reflects a systematic failure of arrangements (political, legal, institutional, and so on). In addition, when regulators fail to understand the value of water, inadequate prescribed penalties increase the risk of theft. We invite others to test our framework, apply our model and engage in a wider conversation about water theft.

How can we support the development of robust groundwater sustainability plans?

California Agriculture (UCANR) | March 13th, 2018

Three years after California passed the Sustainable Groundwater Management Act (SMGA), groundwater sustainability agencies (GSAs) are now preparing to develop their groun

Three years after California passed the Sustainable Groundwater Management Act (SMGA), groundwater sustainability agencies (GSAs) are now preparing to develop their groundwater sustainability plans (GSPs), the blueprints that will outline each basin’s road to sustainability. Successful GSPs will require an effective participatory decision-making process. We tested a participatory process with the Yolo County Flood Control and Water Conservation District, a water-limited irrigation district in the Central Valley. First, we worked with district stakeholders to outline the parts of the plan and set measureable objectives for sustainability. The district defined seven management strategies, which the research team evaluated against climate, land use and regulatory uncertainties using a water resources model. Together, we explored model results using customized interactive graphics. We found that the business-as-usual strategy was the most unlikely to meet sustainability objectives; and that a conjunctive use strategy, with winter groundwater recharge and periphery ponds storage, achieved acceptable measures of sustainability under multiple uncertainties, including a hypothetical pumping curtailment. The process developed a shared understanding of the vulnerabilities of the local groundwater situation and proved valuable in evaluating strategies to overcome them.

Identifying American climate change free riders and motivating sustainable behavior

Nature Portfolio (Springer Nature) | March 19th, 2024

Implementing SGMA: Results from a Stakeholder Survey

University of California, Davis (UC Davis) | August 26th, 2019

The Sustainable Groundwater Management Act (SGMA) of 2014 represents a historic transition to collective groundwater resource management and has the potential to signif

The Sustainable Groundwater Management Act (SGMA) of 2014 represents a historic transition to collective groundwater resource management and has the potential to significantly reduce groundwater overdraft in California. A total of 260 groundwater sustainability agencies (GSAs) recently formed to collectively manage groundwater resources in the 127 high and medium priority groundwater basins of the state. The simultaneous formation of hundreds of new governing agencies is an unprecedented institutional effort with very few examples to learn from. As GSAs move towards the design and deliberation of their groundwater sustainability plans (GSPs), assessments on the process up until now can directly inform development processes that are still taking place. This report summarizes the results from a state-wide survey that targeted SGMA participants.

Implicit and Explicit Biases for Recycled Water and Tap Water

American Geophysical Union (AGU) | May 31st, 2022

Increasing use of recycled water to irrigate agricultural products and decreasing consumption of bottled water are important components of sustainable water management pr

Increasing use of recycled water to irrigate agricultural products and decreasing consumption of bottled water are important components of sustainable water management practices and consumer-driven efforts to improve water security and quality. However, consumers frequently discount agricultural products irrigated with recycled water relative to products irrigated with conventional water and place a premium on bottled water relative to tap water. This study measures consumer attitudes regarding recycled water and bottled water to understand more fully the reasons behind these preferences. We conduct two studies involving 2,616 adult consumers in the United States designed to measure consumer attitudes and preferences: the use of recycled water versus conventional water to irrigate food products and tap water versus bottled water for drinking. In each study, implicit attitudes are measured using an Implicit Association Test as well as explicit attitudes. We find that respondents have negative implicit attitudes regarding recycled water compared to conventional water and tap water compared to bottled water, and a negative explicit attitude toward recycled water. Tap water and food grown with recycled water were believed to be less healthy to consume and less tasty, although these are believed to be more sustainable options. Beliefs about water attributes (i.e., healthfulness, taste, and sustainability) are associated with attitudes, and both beliefs about attributes and attitudes are associated with preferences for products. Further, we find that respondents' stated preferences are consistent with their implicit and explicit attitudes.