Kristin Babson Dobbin

California's efforts to advance the Human Right to Water are constrained by limited household‐level data on water insecurity. Using the 2021 CalSpeaks statewide probability survey ( n = 628) this study offers the first representative look at water insecurity across California households. Results reveal significant water‐related struggles: approximately 23% of respondents worried about having enough water to meet their household needs, 15% worried about perceived health impacts from water quality, and 7% struggled with affordability. Negative binomial regression models show that water insecurity is not randomly distributed: households with non‐white residents, households which rely on private or small water companies for water service or receive public assistance experience disproportionately higher water insecurity. Sensitivity analyses indicate that some predictors—such as household size and employment—are more strongly associated with frequent water insecurity experiences, underscoring the need for multidimensional monitoring. These findings highlight that system‐level compliance metrics substantially underestimate household‐level challenges and reinforce the need for policies that address affordability, quality, accessibility, worry, and trust to achieve California's Human Right to Water.

Across the United States, policymakers are busy developing incentive programs and mandatory policies to speed up adoption of consolidations and reduce the number of regulated water systems. Little attention, however, has been paid to why water system managers themselves, whose cooperation, if not leadership, is often required, pursue consolidation and how they characterize the benefits. Here we leverage novel, representative data from the California Water System Consolidation Survey to shed light on these questions. We find that consolidation is motivated by a diverse array of concerns within and among projects. In 80% of cases, managers reported benefits pertaining to their motivations, suggesting an overall high level of effectiveness. One exception is motivations related to technical, managerial, and financial capacity for which respondents reported fewer related benefits. Many also reported additional benefits beyond those specifically related to their motivations. We identify several factors that are associated with increased consolidation effectiveness and with specific benefits including geographic isolation of the systems, previous relationships between water systems, and water system initiation of consolidation. The results highlight opportunities to advance beneficial, community‐driven projects as well as challenges meriting scholarly and policy attention, including the need to align consolidation rhetoric with the priorities and experiences of managers themselves.

Understanding inequality in groundwater access and cropland ownership is critical for assessing the sustainability and equity of agricultural systems, especially in regions facing climatic and socioeconomic patterns such as drought and cropland consolidation. These two forms of access are deeply interconnected: for instance, cropland ownership often determines who can access and control groundwater. Due to data challenges, however, few studies have quantified groundwater access inequality in the same ways that land ownership has been quantified. Similarly, the regional scale of most analyses to date limits our understanding of factors that shape and modify these interconnections. Our study aims to address this gap by constructing a novel geospatial dataset by matching groundwater wells with cropland parcels across California’s Central Valley. We quantify the magnitude and spatial patterns of groundwater and cropland inequality and examine how it scales with land ownership, crop types, and surface water access. Our results indicate substantial inequality in both groundwater access and land ownership, with the top decile of well owners possessing 46.4% of the region’s total well capacity. These well owners are more likely to allocate groundwater to high-revenue, water-intensive perennials such as almonds and walnuts. Furthermore, large landholders tend to have far more wells, deeper and higher-capacity wells, and greater access to surface water resources. However, we observe consistently wider inequality in land ownership than water access, and larger landowners possess less well depth and capacity per hectare. We discuss the implications of these findings in the context of California’s historical lack of regulation on groundwater, particularly with respect to inequality in open access vs private property resources. We also consider possible lessons for future groundwater regulation and distribution mechanisms for groundwater rights under California’s Sustainable Groundwater Management Act.

Due to the compounding threats of over extraction and climate change, groundwater resources are under pressure globally. This can lead to groundwater levels dropping and domestic wells going dry, with significant consequences for public health and wellbeing. Domestic well vulnerability analyses are an important tool that can help water managers prevent and mitigate such impacts. However, information gaps related to well activity status introduce significant uncertainties into these models. In this technical note, we create a hypothetical groundwater surface for California’s Central Valley based on locally developed sustainable groundwater management plans and compare both the degree of domestic well dewatering and the distribution of dewatering across the population under a range of different retirement age assumptions. Our sensitivity analysis demonstrates that not only do domestic well retirement assumptions influence the expected number of impacted wells, but also who is forecasted to be impacted: Older retirement age assumptions predict larger proportions of well impacts with higher instances of dewatering in census block groups with larger populations of people of color and low-income people of color specifically. Thus, the potential consequence of underestimating well age in the study area is to perpetuate environmental injustice. To avoid doing so, wherever possible data on well activity status should be collected and utilized. Where data is not available, researchers and water managers should use best practices including employing uncertainty analysis and environmental justice assessments.

Despite the reality that advocates frequently expend significant resources to pass symbolic policies, this policy design has often been neglected by policy studies scholarship. We combine policy design and policy feedback theory to examine this oft overlooked policy design in practice using the case of California's human right to water law (Assembly Bill 685, or AB 685). Through semi‐structured interviews, archival research, and document analysis, we reveal how grassroots advocates deliberately and effectively pursued AB 685 to build power across the water justice movement and catalyze narrative change about drinking water access, while also building state responsiveness on the topic. These interpretive policy feedback effects then accelerated the policy's resource effects through formal policy changes in funding allocations, administrative structures, and regulatory systems. Collectively, feedbacks from AB 685 have transformed the sociopolitics of drinking water access. Contrary to prevailing wisdom, the policy's ambiguity proved key to building the broad coalition necessary to accomplish these changes, and it facilitated work across policy venues and governance scales through time, which is critical to enacting transformational change. Based on these findings, we argue that symbolic policies merit attention as a potentially advantageous policy design for social movements seeking social change and transformation.

In the United States, most residents receive water from centralized utilities regulated under the federal Safe Drinking Water Act. Yet, a sizable portion of U.S. residents satisfy their household water needs through decentralized means, including domestic wells, very small water systems, and hauled water. These federally unregulated water users are among the most vulnerable to the impacts of climate change, particularly in aridifying regions like the Southwest. They are, however, inconsistently monitored and regulated at the Tribal, federal, state, and local levels. Compared to regulated users, very few programs exist to assist this population in securing and maintaining safe, affordable drinking water access. This neglect creates a vicious cycle whereby their water security needs remain both poorly understood and inadequately addressed. We review available data sources, regulations, assistance programs, and published studies relevant to unregulated water users across the Southwestern U.S. to illustrate this injurious feedback loop. We then propose four key areas for intervention to transform this vicious cycle into a virtuous one. Drawing on new insights from the emerging literature on modular, adaptive, and decentralized (MAD) water infrastructure, we highlight opportunities for investment and innovation to support decentralized service alongside existing investments in centralized infrastructure, and the critical need to attend to justice in the design and implementation of such policies.This article is categorized under: Science of Water > Water and Environmental Change Human Water > Water Governance Human Water > Rights to Water

Scholars and policy makers alike frequently promote drinking water system consolidation as a solution to the longstanding struggles of small water systems and the related consequences of service fragmentation, including vulnerability to climate change and persistent racial and economic inequalities in access to safe and affordable drinking water. Despite enthusiasm for the concept, however, our understanding of how, why, and where consolidations occur has remained stubbornly limited such that the promise of drinking water system consolidation remains theoretical at best. This study analyzes all known water system consolidations (n = 206) in the state of California over a 7‐year period (2015–2021). We find empirical support for certain theoretical claims about consolidation, including an overall reduction in the number of regulated systems, with the largest reductions occurring among particularly underperforming, climate‐vulnerable, and unrepresentative system types. Other findings, however, do not align with the literature on the subject. We find limited evidence of either water service privatization or remunicipalization trends and seemingly limited prospects for economies of scale benefits through consolidations. Moreover, roughly half of consolidations during the study period involve non‐residential water systems. Among the consolidated community water systems, systems serving higher‐resourced communities are overrepresented compared to those serving lower‐resourced communities by a margin of two‐to‐one. It is time to move beyond the blanket assumption of positive consolidation benefits toward a more nuanced understanding of the associated opportunities and limitations. Depending on their goals, policymakers may need to support more specific types of consolidation.

: Rapid adaptation is necessary to maintain, let alone expand, access to reliable, safe drinking water in the face of climate change. Existing research focuses largely on the role, priorities, and incentives of local managers to pursue adaptation strategies while mostly neglecting the role of the broader public, despite the strong public support required to fund and implement many climate adaptation plans. In this paper, we interrogate the relationship between personal experiences of household water supply impacts from extreme weather events and hazard exposure with individual concern about future supply reliability among a statewide representative sample of California households. We find that more than one-third of Californians report experiencing impacts of climate change on their household water supplies and show that these reported impacts differently influence residents’ concern about future water supply reliability, depending on the type of event experienced. In contrast, residents’ concern about future water supplies is not significantly associated with hazard exposure. These findings emphasize the importance of local managers’ attending to not only how climate change is projected to affect their water resources, but how, and whether, residents perceive these risks. The critical role of personal experience in increasing concern highlights that post-extreme events with water supply impacts may offer a critical window to advance solutions. Managers should not assume, however, that all extreme events will promote concern in the same way or to the same degree.

Collaborative environmental governance seeks to engage diverse stakeholders to tackle complex challenges efficiently, sustainably, and equitably. However, mixed empirical evidence underscores a need to understand the conditions under which particularly equity is or is not achieved. Here, we use the empirical case of California Sustainable Groundwater Management to quantify the extent to which vulnerable small and rural drinking water users' needs are addressed in collaborative groundwater planning. Drawing on a diverse array of mixed method data, we then employ Boosted Regression and Classification Trees (BRCT) to assess potential driving factors including collaboration, representation, elite capture, stakeholder engagement, and problem severity/salience. We find each to be influential, highlighting their relevance for equitable planning. We also find evidence that these relationships are complex and outcome specific. Nonetheless, the overall effect on the three equity measures is modest at best. More institutional analysis of collaborative governance regimes from diverse contexts is needed to build a comprehensive understanding of how to meaningfully advance social and environmental equity in such decentralized reforms. Based on our results, we suggest the answer, if there is one, may transcend current focal domains such as stakeholder representation and engagement.