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303 datasets

i07 Water Shortage Vulnerability Small Water Systems

Published by: California Department of Water Resources
Last updated: Saturday, April 4, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This dataset represents a water shortage vulnerability analysis performed by DWR using Small Water System boundaries pulled from the SWRCB (State Wate...

CA Urban Retail Water System Water Loss Annual Loss Audit Data

Published by: California Department of Water Resources
Last updated: Saturday, April 4, 2026
File types: CSV

This dataset contains annual validated water loss audit reports submitted to the Department of Water Resources by California urban retail water suppli...

State Water Project Routine Water Quality Monitoring

Published by: California Department of Water Resources
Last updated: Saturday, April 4, 2026
File types: CSV, LINK, PDF

The California State Water Project (SWP) is one of the nation’s largest water conveyance projects. Its geographic extent stretches from Sierra Nevada ...

Surface Water - 2017 California Water Quality Status Report

Published by: California State Water Resources Control Board
Last updated: Wednesday, October 23, 2019
File types: ZIP

The California Water Boards’ Water Data Center is proud to present the CA Water Quality Status Report. This report is an annual data-driven snapshot ...

Urban Water Use Objectives – Relevant Data

Published by: California State Water Resources Control Board
Last updated: Friday, April 3, 2026
File types: CSV

The Making Conservation a California Way of Life regulation requires urban retail water suppliers (URWS) to annually calculate their Urban Water Use O...

2019 California Water Quality Status Report

Published by: California State Water Resources Control Board
Last updated: Wednesday, October 23, 2019
File types: ZIP, XLSX, CSV, TXT

The California Water Quality Status Report is an annual data-driven snapshot of the Water Board’s water quality and ecosystem data. This third edition...

Water Quality Data

Published by: California Department of Water Resources
Last updated: Saturday, April 4, 2026
File types: CSV

The California Department of Water Resources (DWR) discrete (vs. continuous) water quality datasets contains DWR-collected, current and historical, ch...

Surface Water - Freshwater Harmful Algal Blooms

Published by: California State Water Resources Control Board
Last updated: Saturday, April 4, 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...

Urban Retail Water Supplier - Water Conservation, Supply, and Demand (June 2014 onwards)

Published by: California State Water Resources Control Board
Last updated: Monday, March 16, 2026
File types: PDF, CSV, XLSX

Monthly reports of water use and conservation activities by urban retail water suppliers, which are generally defined as agencies serving over 3,000 s...

Urban Water Management Plans (UWMP) 2015

Published by: California Department of Water Resources
Last updated: Saturday, April 4, 2026
File types: PDF, CSV

Urban Water Management Plans (UWMPs) are prepared by California's urban water suppliers to support their long-term resource planning, and ensure adequ...