Central Coast

The Central Coast region extends from southern San Mateo County down to Santa Barbara in the south and includes redwood forests, foggy coastal terraces, chapparal-covered hills, green valley floors, and semi-arid grasslands. Agriculture and viticulture thrive here with the temperate climate, rich soils, and moderate rainfall, and is central to the economy of this region. The Central Coast region is the most groundwater-dependent region in the state with groundwater being used to meet approximately 80% of agricultural, municipal, and domestic water demands.

California's Groundwater Conditions: Semi-Annual Update May 2025

California Department of Water Resources (DWR) | June 24th, 2025

Summary

This semi-annual report presents data received by DWR as of April 2025 and reflects the impacts of a few wet years after a drought period. However, it should be noted tha

California's Groundwater Update 2025 (Bulletin 118)

California Department of Water Resources (DWR) | October 20th, 2025

Summary

California’s Groundwater: Bulletin 118 — Update 2025 (CalGW Update 2025) is a compendium of statewide data and information on the occurrence, nature, use, and conditi

California's Rivers and Streams

Public Policy Institute of California (PPIC) | January 26th, 2026

Summary

California's Water Supply Strategy: Adapting to a Hotter, Drier Future

California Department of Water Resources (DWR) | August 16th, 2022

Summary

California's Water–Energy Relationship

California Energy Commission (CEC) | November 1st, 2005

Summary

This report examines the dynamic give-and-take relationship between California’s water and energy resources. Among many other issues, this staff report examines the s

California’s Coast and Ocean Summary Report

California Energy Commission (CEC) | August 27th, 2018

Summary

This report synthesizes current scientific understanding about the impacts of climate change on California’s coast and ocean and presents a forward-looking summary of

California’s Groundwater Conditions Semi-Annual Update: October 2022

California Department of Water Resources (DWR) | October 15th, 2022

Summary

This report is a semi-annual update of the annual Groundwater Conditions Report published in March 2022 and part of DWR’s California’s Groundwater (Bulletin 118). Wat

California’s Groundwater Conditions: Semi-Annual Update, October 2023, Fall Bulletin 118 Information Update

California Department of Water Resources (DWR) | October 12th, 2023

Summary

This semi-annual report presents data received by DWR as of August 31, 2023, and partially reflects the impacts of recent storms, flooding, and natural and managed aquife

Filter Results

Type

Topic

Keywords

Publisher

Basin

Hydrological Region