Bulletin No. 3 The California Water Plan

California Department of Water Resources (DWR) | May 6th, 1957

This document has been split in two parts because of the size. Click here for Part 1 and here for Part 2  

This document has been split in two parts because of the size. Click here for Part 1 and here for Part 2  

Bulletin No. 31, Santa Ana River Basin

California Department of Water Resources (DWR) | January 1st, 1930

Bulletin No. 32, South Coastal Basin

California Department of Water Resources (DWR) | January 1st, 1930

Bulletin No. 4, Water Resources of California, A Report to the Legislature of 1923

California Department of Water Resources (DWR) | January 1st, 1923

CalFed Science Synthesis: Science Issues Related to Delta Conveyance Options for California Water Supply

CALFED | March 1st, 2008

On August 22 and September 11, 2007, the CALFED Science Program convened workshops to identify and discuss key scientific and technical issues pertaining to conveyance of

On August 22 and September 11, 2007, the CALFED Science Program convened workshops to identify and discuss key scientific and technical issues pertaining to conveyance of Sacramento River water through or around the California Delta to the state and federal water project export pumps in the south Delta. The first workshop focused on “isolated” conveyance facilities (such as a peripheral canal or pipeline) while the second workshop focused on through-Delta conveyance facilities (such as existing or proposed through-Delta natural or man-made channels, canals, or sloughs) to convey water. During the series of presentations and discussions by subject-matter experts, several important broad conclusions emerged and are discussed below. The two workshop summaries are attached to this synthesis of key points.

California Aqueduct Subsidence Study

California Department of Water Resources (DWR) | June 1st, 2017

In 2006, the San Luis Field Division of the California Department of Water Resources' Division of Operations and Maintenance (O&M) began to see a reduction in flow ca

In 2006, the San Luis Field Division of the California Department of Water Resources' Division of Operations and Maintenance (O&M) began to see a reduction in flow capacity through the California Aqueduct (Aqueduct) Pools 20 and 21. Subsidence had lowered portions of the Aqueduct and caused the concrete liner freeboard (the vertical distance between the water surface and the top of the concrete liner) to be reduced from its normal of 3 feet, to less than 1 foot. Subsidence had also decreased the ability to store water in those pools, which is normally done to add operational flexibility and to manage pumping at the Aqueduct’s pumping plants. While subsidence has reduced the amount of freeboard and flow capacity at specific locations, contracted deliveries have not been curtailed through 2016. Additional work, to be addressed in the next phase of the project, will quantify how hydraulic limitations have impacted operations and will estimate future impacts to deliveries, based on forecasted subsidence rates. The purpose of this project is to research and study past and present subsidence reports and data, and to understand and summarize the magnitude, location, and effects on the Aqueduct. This report summarizes the significant information found, and presents the results of the data that were analyzed.

California State Water Project: Past, Present, Future

California Department of Water Resources (DWR) | July 1st, 2006

California Subsidence Program - Subsidence and Groundwater Monitoring Project

California Department of Water Resources (DWR) | June 21st, 2024

This Initial Study (IS) and Mitigated Negative Declaration (MND) has been prepared by the California Department of Water Resources (DWR) to address the environmental impa

This Initial Study (IS) and Mitigated Negative Declaration (MND) has been prepared by the California Department of Water Resources (DWR) to address the environmental impacts of the proposed California Aqueduct Subsidence Program (CASP) Subsidence and Groundwater Monitoring Project (proposed project) and to satisfy the requirements of the California Environmental Quality Act (CEQA). The DWR is planning installation of equipment to collect spatial information at approximately five (5) groundwater and subsidence monitoring stations along the California Aqueduct (Aqueduct) (approximately Mile Posts 213.0L, 230.6L, 259.6L, 271.2L, and 279.1L within the San Joaquin Field Division) (Figure 1). The proposed project would provide real-time data to monitor groundwater levels and other spatial information as they relate to ground subsidence. The data would be used to help inform how subsidence is affecting the Aqueduct and would assist in maintaining infrastructure of the State Water Project (SWP). The proposed project is described in more detail in Chapter 2.

California’s Water: An LAO Primer

Legislative Analyst's Office (LAO) | October 22nd, 2008

California’s water delivery system is facing a series of challenges due in part to a combination of increasingly variable weather conditions, legal requirements, and sy

California’s water delivery system is facing a series of challenges due in part to a combination of increasingly variable weather conditions, legal requirements, and system operation and conveyance constraints. These challenges affect water availability, reliability, and delivery. Recent public and private efforts have sought ways to address these challenges. These measures include proposals to increase water through groundwater storage, surface storage, infrastructure changes, and system operation improvements, among others. This report provides, through a “quick reference” document relying heavily on charts to present information, a snapshot of water in California, including: (1) An Overview of California’s Water Governance; (2) Water Supply, Source, and Delivery; (3) How Do We Finance Water Projects? (4) What Drives the Cost of Water?, and (5) Issues for Legislative Consideration

California’s Water: Paying for Water

Public Policy Institute of California (PPIC) | October 1st, 2016

Sustainable solutions by state and local leaders are needed to close serious funding gaps in a number of critical areas of water management—including floods, water qual

Sustainable solutions by state and local leaders are needed to close serious funding gaps in a number of critical areas of water management—including floods, water quality, and aquatic ecosystems. This brief describes the state’s major water funding gaps and proposes ways to fill them. This publication is part of a briefing kit that summarizes a dozen of the state’s most pressing water management issues.