Best Management Practices of the Sustainable Management of Groundwater Land Subsidence

California Department of Water Resources (DWR) | January 21st, 2026

The Subsidence Best Management Practices document (Subsidence BMP) provides a guide on the fundamentals of land surface subsidence (also called “land subsidence” or �

The Subsidence Best Management Practices document (Subsidence BMP) provides a guide on the fundamentals of land surface subsidence (also called “land subsidence” or “subsidence”), technical assistance related to subsidence, and best practices for managing subsidence. The Subsidence BMP also provides specific information about subsidence in California and how it must be considered within the structure of the Sustainable Groundwater Management Act (SGMA). Subsidence is one of the six sustainability indicators required to be managed under SGMA. The Subsidence BMP does not supersede or replace any existing local, state, or federal regulations. Rather, it is meant to help groundwater managers, especially Groundwater Sustainability Agencies and the public, better understand land subsidence and how it can be managed.

Best Management Practices of the Sustainable Management of Groundwater: Land Subsidence (Draft)

California Department of Water Resources (DWR) | July 23rd, 2025

For almost a century, parts of California have been gradually sinking, impacting critical infrastructure and the communities who rely on it. Recognizing this challenge, t

For almost a century, parts of California have been gradually sinking, impacting critical infrastructure and the communities who rely on it. Recognizing this challenge, the Department of Water Resources has released a draft Best Management Practices document for public comment that will help local water agencies address this growing concern and support groundwater reliant communities. Click here for the full DWR press release.

Better late than never: a synthesis of strategic land retirement and restoration in California

Ecological Society of America (Wiley) | August 10th, 2018

Strategic retirement and restoration of agricultural lands is a critical conservation opportunity globally. The objective of this synthesis was to examine whether ecolog

Strategic retirement and restoration of agricultural lands is a critical conservation opportunity globally. The objective of this synthesis was to examine whether ecological habitat assessments, endangered species historical occurrence data, and restoration research can be used to develop evidence-based strategy for retiring and restoring agricultural lands. The San Joaquin Desert (SJD) of California is a prominent example because it experienced an extensive conversion to agriculture. Now, new groundwater regulations will lead to retirement on large areas of agricultural lands over the next 20 years. This presents an opportunity to not only restore some of these lands but also explore the challenges associated with balancing direct human needs with other ecosystem-level functions. California is thus an ideal case study for globally rethinking context-specific, single-case study solutions. We used a systematic review and synthesis to address the following three main questions for habitat recovery of endangered species in the SJD. (1) What are the habitat requirements for key endangered animal species in the region? (2) Is there historical evidence to support an assessment of suitable habitats for these species? (3) What restoration techniques apply to these species? Using the Web of Science and other resources, we reviewed over 1000 independent studies on this topic, refined the evidence, and selected a total of 266 relevant publications. Habitat requirements for each species were described, but there was a critical need to examine quantitative thresholds for these factors to better evaluate habitat suitability of retired lands. There was sufficient evidence of historical vegetation to model suitable habitats and design the physical restoration of retired lands. Direct interventions associated with restoration strategies have been infrequently tested. Sparse and diverse evidence associated with direct experimental manipulations is not uncommon in applied ecology, and synthesis is an excellent tool for highlighting these gaps for future research to examine. This review suggests that retired agricultural land is a viable asset for threatened and endangered species, but to effectively advance restoration research and management, direct tests of restoration techniques and an assessment of relative costs for interventions are needed for a given region.

Beyond Privatization: Restructuring Water Systems to Improve Performance

Pacific Institute | December 1st, 2005

Water managers face significant challenges meeting the water supply, wastewater collection and treatment, and stormwater management needs of the communities they serve. N

Water managers face significant challenges meeting the water supply, wastewater collection and treatment, and stormwater management needs of the communities they serve. Numerous solutions have been proposed, including privatization—the controversial action of significantly increased private sector involvement. The debate over privatization overshadows discussion of the determinants of performance. Pacific Institute’s report Beyond Privitization: Restructuring Water Systems to Improve Performance  finds that public versus private is not the bright line that separates success from failure. Researchers Gary Wolff and Eric Hallstein found that performance depends on effective staffing, consistent public support for sufficient funding, better asset management systems, performance measurements and rewards, and more stakeholder involvement and transparency. When increased private involvement or changes in public operations create significant cost savings, as they have in some cases, it is because specific improvements were identified and implemented in one or more of these categories. Beyond Privatization provides a framework for urban and rural municipal-level public decisionmakers to assess problems, identify possible solutions, and choose among these solutions. It provides practical information and examples about improving the effectiveness of water, wastewater, and stormwater systems, whether public or private. To illustrate critical points, the report offers numerous examples from the upper Midwest: the US states of Illinois, Indiana, Iowa, Michigan, Minnesota, Ohio, and Wisconsin, and the Canadian province of Ontario. However, the manual’s lessons extrapolate to other regions of the United States, and beyond.

Beyond the Haze: A UC Dust Report on the Causes, Impacts, and Future of Dust Storms in California

University of California, San Diego (UC San Diego) | December 5th, 2024

This report is intended to be a comprehensive summary of the current state of knowledge of dust storms in California, including where dust storms occur, the features cont

This report is intended to be a comprehensive summary of the current state of knowledge of dust storms in California, including where dust storms occur, the features contributing to their geographic distribution, factors driving historical and likely future changes in dust, the impact dust storms have on human health, the economy, and environment of the state, and an assessment of what is needed to mitigate or adapt to those impacts. The purpose of this report is to be a resource to the public, community-based organizations, state agencies, and policy makers on dust storms in California. The information here is intended to help guide future adaptation and mitigation efforts and identify critical gaps in understanding that impede those efforts.

Beyond Water Pricing: An Overview of Water Financing Options in California

Pacific Institute | November 21st, 2013

California’s social and economic well-being is directly tied to financing for reliable, sustainable water. A new study from the Pacific Institute explores stable and su

California’s social and economic well-being is directly tied to financing for reliable, sustainable water. A new study from the Pacific Institute explores stable and sustainable sources of funding for water projects as a key to long-term solutions, and finds California’s increased dependence on general obligation (GO) bonds in funding water systems is unreliable and costly to both the state and taxpayers. Current water rates often do not fully cover the cost of providing water services and rarely reflect the full costs of the water itself, such as the ecosystem impacts related to extracting water. California ranks at the top of the EPA’s survey of infrastructure needs in terms of the investments required to maintain aging water systems over the next two decades. Climate change, continued population growth, and restoring critical ecosystems will add further to these costs. “Various financing options are used to invest in existing water systems and services, develop new ones, and mitigate environmental impacts, but there are serious economic and financial challenges,” said Dr. Newsha Ajami, lead author of the report. “The water sector needs a more comprehensive and stable financing portfolio.” According to the California Department of Water Resources, nominal annual debt service for outstanding general obligation water bonds in California has increased four-fold since 2000. This shift to greater use of bond funding can be linked to the decreased ability to raise government revenues through taxes and fees as a result of voter-approved initiatives like Proposition 13 and 218. General obligation bonds, however, are not a steady and reliable source of funding for long-term planning and decision-making because they require voter approval if they survive the legislative process, which is sensitive to economic ups and downs.

Beyond Watershed Planning: Engaging Communities to Improve Outcomes of the Safe Clean Water Program

Los Angeles Waterkeeper (LA Waterkeeper) | August 11th, 2026

In the eight years since Los Angeles voters approved Measure W, the LA County Flood Control District has successfully launched the Safe Clean Water Program (SCWP). The pr

In the eight years since Los Angeles voters approved Measure W, the LA County Flood Control District has successfully launched the Safe Clean Water Program (SCWP). The program collects approximately $280M every year and distributes those funds to support stormwater capture projects that can reduce flooding, improve regional water quality, recharge groundwater, and provide a variety of benefits for communities and wildlife. To date, the SCWP has funded 473 projects, studies, concepts, and program activities through its regional, municipal, and district programs.  The program takes an adaptive management approach to ensure funds are invested effectively and that supported projects deliver meaningful reductions in flood risk while providing appropriate treatment of local stormwater. This approach also ensures funds are leveraged to provide the most potential benefits for every dollar spent. As part of that effort, the SCWP developed a watershed planning process in 2024 with the goal of maximizing potential benefits in each of the county’s nine watersheds.  Los Angeles Waterkeeper secured funding to conduct five community workshops to further inform the watershed planning process moving forward. The purpose of these workshops was to ensure that individuals and organizations who are well informed about the on-the-ground needs and priorities of communities throughout LA County had the opportunity to provide input to the watershed plans. LA Waterkeeper partnered with community-based organizations in each of the areas where the workshops were held to invite priority participants, although all workshops were open to the public. 

Biennial Report of the Fish and Game Commission of California 1924-26

California Fish and Game Commission | June 30th, 1926

Biennial Report of the State Board of Fish Commissioners of the State of California for the Years 1886-1888

State of California | October 1st, 1888

Biennial Report of the State Board of Fish Commissioners of the State of California for the Years 1888-1890

State of California | October 1st, 1890