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435 datasets

Dry Well Reporting System Data

Published by: California Department of Water Resources
Last updated: Wednesday, August 5, 2026
File types: CSV

In California, water systems serving one (1) to 15 households are regulated at the county level. Counties vary in their practices, but rarely do count...

CA Urban Retail Water System Water Loss Annual Loss Audit Data

Published by: California Department of Water Resources
Last updated: Wednesday, August 5, 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...

TRE ALTAMIRA InSAR Subsidence Data

Published by: California Department of Water Resources
Last updated: Wednesday, August 5, 2026
File types: PDF, HTML, GEOTIFF, ZIP

This dataset represents measurements of vertical ground surface displacement in more than 200 of the high-use and populated groundwater basins across ...

DWR Technical Support Services (TSS)

Published by: California Department of Water Resources
Last updated: Wednesday, August 5, 2026
File types: CSV

(Webpage Under Development) The Department of Water Resources (DWR) provides Technical Support Services (TSS) to assist Groundwater Sustainability ...

WDL Ground Surface Displacement - Land Subsidence Monitoring

Published by: California Department of Water Resources
Last updated: Wednesday, August 5, 2026
File types: CSV

Borehole extensometers are a more site specific method of measuring land subsidence. These instruments consist of a pipe or cable anchored at the bott...

Continuous Groundwater Level Measurements

Published by: California Department of Water Resources
Last updated: Wednesday, August 5, 2026
File types: CSV

DWR continuous groundwater level measurements contains continuous time-series data from automated recorders at sites operated by the Department of Wa...

DWR Continuous Data Download Links

Published by: California Department of Water Resources
Last updated: Wednesday, August 5, 2026
File types: CSV

Stations and a table of download links for time-series data, from DWR's continuous environmental monitoring database. For more information, see DWR's...

DWR's Basin Characterization Program

Published by: California Department of Water Resources
Last updated: Wednesday, August 5, 2026
File types: .ZIP, ZIP, FILE GEODATABASE, PDF

DWR has a long history of studying and characterizing California’s groundwater aquifers as a part of [California’s Groundwater (Bulletin 118)](https:/...

i06 Precise Surveys StateWaterProject

Published by: California Department of Water Resources
Last updated: Wednesday, August 5, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Survey data as part of the 'Precise Surveys' project has been collected from points along the State Water Project. Data includes elevations, Northings...

Water Quality Data

Published by: California Department of Water Resources
Last updated: Wednesday, August 5, 2026
File types: CSV

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