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Assessment of Interconnected Subbasins: Regional Collaboration and Model Selection Process

Groundwater Resources Association of California (GRA) | October 3rd, 2017

Summary

In basins with complex spatial and temporal variations in water budget components, integrated groundwater-surface water modeling is the best approach to quantify and eval

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Assumptions and Estimates for California Water Plan Update 2018

California Department of Water Resources (DWR) | April 13th, 2017

Summary

The California Water Plan (Water Plan) is the State government’s strategic plan for sustainably managing and developing water resources statewide for current and future

The California Water Plan (Water Plan) is the State government’s strategic plan for sustainably managing and developing water resources statewide for current and future generations. The Water Plan development process provides a planning framework for elected officials, agencies, tribes, water and resource managers, businesses, academia, stakeholders, and the public to collaborate on findings and recommendations and make informed decisions regarding California’s water future. The goal for each update of the Water Plan is to receive broad input and support from Californians, meet California Water Code (Water Code) requirements, guide State investments, and advance integrated water management and regional sustainability. This draft report and the related data posted online comprise the Draft Assumptions and Estimates Report (Draft A&E Report) for California Water Plan Update 2018 (Update 2018). The Draft A&E Report presents key assumptions and estimates, data and data sources, and companion plans that will be considered for the preparation of Update 2018. The report increases the transparency of the Water Plan process by disclosing the data, tools, methods, and references used to prepare Update 2018. This report meets Water Code requirements, which stipulate that the California Department of Water Resources (DWR) must publish the Water Plan’s assumptions and estimates one year prior to the plan’s publication, as well as provide an opportunity for public review and comment. Water code requirements for the Draft A&E Report are presented below. The Draft A&E Report also describes the approach DWR is taking to improve the analytical tools and data being used to develop Update 2018. DWR will continue to update Draft A&E Report content online during the remainder of the Update 2018 development process. A draft glossary for Update 2018 is included as part of this report, and the final version of that glossary will be published as a component of Update 2018. The final data and data sources will be included in the Update 2018 reference and technical information.

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Atmospheric river activity during the late Holocene exceeds modern range of variability in California

Nature Portfolio (Springer Nature) | April 25th, 2024

Summary

Atmospheric rivers are associated with some of the largest flood-producing precipitation events in western North America, particularly California. Insight into past extre

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Atmospheric River Precipitation Enhanced by Climate Change: A Case Study of the Storm That Contributed to California's Oroville Dam Crisis

American Geophysical Union (AGU) | February 9th, 2022

Summary

California's reliance on precipitation from atmospheric rivers is expected to increase as our climate warms. Understanding how climate change is impacting this increasing

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Authority and Effectiveness of the State Water Resources Control Board

Delta Vision Blue Ribbon Task Force (Delta Vision) | July 1st, 2008

Summary

This report addresses issues related to the effectiveness of the California State Water Resources Control Board (“State Board” or “Board”) in carrying out its rol

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Background and Recent History of Water Transfers in California

California Department of Water Resources (DWR) | July 1st, 2015

Summary

The purpose of this paper is to provide a basic understanding of water transfers in California with an emphasis on transfers that move water through the Sacramento-

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Basin Framework for a Multi-benefit Groundwater Replenishment and Water Trading Program: Groundwater Sustainability Plan Chapter Template

Environmental Defense Fund (EDF) | October 1st, 2018

Summary

The following Groundwater Sustainability Plan (GSP) chapter templates were developed by Environmental Defense Fund and New Current Water and Land, LLC to assist Groundwat

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Bathymetry and Digital Elevation Models of Coyote Creek and Alviso Slough, South San Francisco Bay, California

U.S. Geological Survey (USGS) | March 15th, 2018

Summary

In 2010 the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center completed three cruises to map the bathymetry of the main channel and shall

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Bay Delta Plan Phase 2 Workshop Summary Report

California State Water Resources Control Board (SWRCB) | January 1st, 2013

Summary

The California State Water Resources Control Board (Board) is tasked with updating the 2006 Water Quality Control Plan for the Bay-Delta Estuary (Bay-Delta Plan). The Boa

The California State Water Resources Control Board (Board) is tasked with updating the 2006 Water Quality Control Plan for the Bay-Delta Estuary (Bay-Delta Plan). The Board planning activities for this process have four phases. Phase 1 focused on San Joaquin River flow requirements and southern Delta water quality objectives. The current phase (Phase 2) focuses on fish and wildlife beneficial uses. Phase 3 will focus on modifications to water rights and Phase 4 will focus on the development and implementation of flow requirements for priority Delta tributaries. Phase 2 workshops were held to conduct discussions and generate information regarding the scientific and technical basis for considering potential changes to the Bay-Delta Plan. The workshops were informal; the Board did not take any official action and there was no sworn testimony. Information provided during the workshops will augment information developed through earlier reviews and will inform the Board members and staff on what, if any, changes should be made to the Bay-Delta Plan. Three workshops were held. Full workshop agendas are provided in Appendix A. 1. Ecosystem Changes and the Low Salinity Zone, September 5–6, 2012 – including the effects of the low salinity zone on various estuarine species, the interaction of salinity with non-flow related factors, and the identification of modeling or other tools that can be used to measure and reasonably protect estuarine habitat. 2. Bay-Delta Fishery Resources, October 1–2, 2012 – including flow, cold water pool, habitat, and water project operational constraints needed to reasonably protect Central Valley steelhead, Sacramento River winter-run, Central Valley late fall–run Chinook salmon, and pelagic species (including Delta smelt and longfin smelt); and the interaction of these issues with non-flow related factors. 3. Analytical Tools for Evaluating the Water Supply, Hydrodynamic, and Hydropower Effects of the Bay-Delta Plan, November 13–14, 2012 – including the CalSim II water supply model, DSM2 and RMA2 hydrodynamic models, Plexus hydropower model, and others as applicable, together with results from applying these models to various scenarios.

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Bay Delta Water Quality Control Plan (Bay Delta Plan)

California State Water Resources Control Board (SWRCB) | December 13th, 2006

Summary

"Bay Delta Plan" is short for the State Water Resources Control Board's (State Water Board) San Francisco Bay/Sacramento-San Joaquin Delta Estuary Water Quality Control P

"Bay Delta Plan" is short for the State Water Resources Control Board's (State Water Board) San Francisco Bay/Sacramento-San Joaquin Delta Estuary Water Quality Control Plan. The Bay-Delta Plan identifies the beneficial uses of the Bay-Delta, water quality objectives for the reasonable protection of those beneficial uses, and a program of implementation for achieving the objectives. The Bay-Delta Plan, when implemented, can determine the amount and timing of water entering and moving through the Delta. The State Water Board holds dual responsibilities of allocating surface water rights and protecting water quality. The State Water Board allocates water through an administrative system that is intended to maximize the beneficial uses of water while protecting the public trust, serving the public interest, and preventing the waste and unreasonable use or method of diversion of water. While most water quality control planning is done by the Regional Water Boards, the State Water Board has authority to adopt statewide water quality control plans. The State Water Board adopts the Bay-Delta Plan because of the Delta's importance as a major source of water supply for the state. The Bay-Delta Plan protects water quality in the region and includes water quality objectives to protect fish and wildlife beneficial uses through inflows to the Delta from the Sacramento and San Joaquin rivers and Delta outflows, in addition to objectives for salinity to protect agricultural beneficial uses. The State Water Resources Control Board (State Water Board) is in the process of a phased review and update of the 2006 Water Quality Control Plan for the San Francisco Bay/Sacramento-San Joaquin Delta Estuary (Bay-Delta) (referred to as the 2006 Bay-Delta Plan). To learn more about the Bay-Delta Plan, click here. In 2009, the State Water Board began the process of reviewing and likely revising the 2006 Bay Delta Plan. At the time of the archiving of this document, that update process still continues. For the latest information, click here to visit the State Water Resources Control Board page for the Bay-Delta Plan Update.. RELATED DOCUMENT: Water Rights Decision 1641, the document that implements the 1995 Bay Delta Plan and is still in force.

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Assessment of Interconnected Subbasins: Regional Collaboration and Model Selection Process

Assumptions and Estimates for California Water Plan Update 2018

Atmospheric river activity during the late Holocene exceeds modern range of variability in California

Atmospheric River Precipitation Enhanced by Climate Change: A Case Study of the Storm That Contributed to California's Oroville Dam Crisis

Authority and Effectiveness of the State Water Resources Control Board

Background and Recent History of Water Transfers in California

Basin Framework for a Multi-benefit Groundwater Replenishment and Water Trading Program: Groundwater Sustainability Plan Chapter Template

Bathymetry and Digital Elevation Models of Coyote Creek and Alviso Slough, South San Francisco Bay, California

Bay Delta Plan Phase 2 Workshop Summary Report

Bay Delta Water Quality Control Plan (Bay Delta Plan)

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