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283 datasets

Groundwater Basin Boundary Descriptions - San Diego Region (9-XXX Basins)

Published by: California Department of Water Resources
Last updated: Wednesday, April 22, 2026
File types: PDF

This dataset includes the official groundwater basin boundary descriptions for California's 515 groundwater basins. To make locating descriptions easi...

Groundwater Basin Boundary Descriptions - Central Coast Region (3-XXX Basins)

Published by: California Department of Water Resources
Last updated: Wednesday, April 22, 2026
File types: PDF

This dataset includes the official groundwater basin boundary descriptions for California's 515 groundwater basins. To make locating descriptions easi...

Groundwater Basin Boundary Descriptions - North Coast Region (1-XXX Basins)

Published by: California Department of Water Resources
Last updated: Wednesday, April 22, 2026
File types: PDF

This dataset includes the official groundwater basin boundary descriptions for California's 515 groundwater basins. To make locating descriptions easi...

Groundwater Basin Boundary Descriptions - Colorado River Region (7-XXX Basins)

Published by: California Department of Water Resources
Last updated: Wednesday, April 22, 2026
File types: PDF

This dataset includes the official groundwater basin boundary descriptions for California's 515 groundwater basins. To make locating descriptions easi...

Water Rights Demand Analysis Methodology Datasets

Published by: California State Water Resources Control Board
Last updated: Thursday, April 7, 2022
File types: CSV, XLSX

The following datasets are used for the Water Rights Demand Analysis project and are formatted to be used in the calculations. The State Water Resourc...

Surface Water - Freshwater Harmful Algal Blooms

Published by: California State Water Resources Control Board
Last updated: Thursday, April 23, 2026
File types: PDF, CSV

Freshwater harmful algal bloom (HAB) data from the Freshwater Harmful Algal Bloom (FHAB) data system. The FHAB data system is the California State Wat...

2025 UWMP Reporting

Published by: California Department of Water Resources
Last updated: Wednesday, April 22, 2026
File types: PDF

This DWR Open Data Publication includes the necessary reporting materials to complete the 2025 Urban Water Management Plan (UWMP). Urban Water Managem...

California Water Rights Associated Parties List

Published by: California State Water Resources Control Board
Last updated: Friday, August 29, 2025
File types: CSV, XLSX, DOCX

This list includes detail information for each party associated with a water right or associated to a water right record (Complaints, enforcement, con...

SGMA - Depletions of Interconnected Surface Water

Published by: California Department of Water Resources
Last updated: Wednesday, April 22, 2026
File types: PDF

The Depletions of Interconnected Surface Water (ISW) dataset has been established to provide technical resources in support of Groundwater Sustainabil...

Groundwater Basin Boundary Descriptions - Lahontan Region (6-XXX Basins)

Published by: California Department of Water Resources
Last updated: Wednesday, April 22, 2026
File types: PDF

This dataset includes the official groundwater basin boundary descriptions for California's 515 groundwater basins. To make locating descriptions easi...