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694 datasets

DWR Community Groundwater Level Monitoring Program

Published by: California Department of Water Resources
Last updated: Wednesday, July 1, 2026
File types: PDF

The Community Groundwater Level Monitoring Program is a voluntary, locally driven effort designed to strengthen drought resilience and fill critical g...

California's Groundwater Semi-Annual Conditions Updates

Published by: California Department of Water Resources
Last updated: Wednesday, July 1, 2026
File types: PDF

Semi-annual Conditions Updates are more frequent supplements to the comprehensive 5-year CalGW Updates, and also provide additional perspective on the...

i08 B118 CA GroundwaterBasins 2016

Published by: California Department of Water Resources
Last updated: Wednesday, July 1, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The dataset is a feature class showing the boundaries of 517 groundwater basins and subbasins as defined by the California Department of Water Resourc...

C2VSimCG Version 2025 - Draft

Published by: California Department of Water Resources
Last updated: Wednesday, July 1, 2026
File types: ZIP

Draft Coarse Grid California Central Valley Groundwater-Surface Water Simulation Model (released January 1, 2026). C2VSimCG v2025 is a computer progra...

California Population Trends by Geography

Published by: California Department of Water Resources
Last updated: Wednesday, July 1, 2026
File types: CSV, WEBSITE

The datasets provide population estimate trends from 1998 to the current year for each of California’s 58 counties, further disaggregated by Detailed ...

California's Groundwater Update 2020 (Bulletin 118)

Published by: California Department of Water Resources
Last updated: Wednesday, July 1, 2026
File types: PDF, XLSX, XLS, ZIP, SHP

California's Groundwater Update 2020 (CalGW) is California's foremost technical publication on groundwater in the state of California. CalGW, formally...

California's Groundwater Update 2025 (Bulletin 118)

Published by: California Department of Water Resources
Last updated: Wednesday, July 1, 2026
File types: PDF, XLS, URL, .ZIP

California's Groundwater: Bulletin 118 Updates (CalGW Updates) are a continuing series of California's primary technical publications on groundwater r...

C2VSimCG R374_rev

Published by: California Department of Water Resources
Last updated: Wednesday, July 1, 2026
File types: PDF, ZIP, MSI, WMV

### A new version of the C2VSimCG model is available here (https://data.cnra.ca.gov/dataset/c2vsimcg-version-2025-draft) Revised version of the C2V...

i12 Salinity Transects SouthDelta

Published by: California Department of Water Resources
Last updated: Wednesday, July 1, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This is a point feature class of high-frequency specific conductance and water temperature measurements at specific points in the South Delta. Specifi...

Estimated Inundation Periods in the Yolo Bypass, 1998 – 2022

Published by: California Department of Water Resources
Last updated: Wednesday, July 1, 2026
File types:

Largely supported by the Interagency Ecological Program (IEP), California Department of Water Resources (DWR) has operated a fish monitoring program i...