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698 datasets

California's Groundwater Update 2025 (Bulletin 118)

Published by: California Department of Water Resources
Last updated: Thursday, July 2, 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 Version 2025 - Draft

Published by: California Department of Water Resources
Last updated: Thursday, July 2, 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...

Statewide Crop Mapping

Published by: California Department of Water Resources
Last updated: Thursday, July 2, 2026
File types: DATA, ZIP, PDF, REST SERVICE, GDB, SHP, STORY MAPS

The California Department of Water Resources (DWR) has been collecting land use data throughout the state and using it to produce agricultural water u...

Estimated Inundation Periods in the Yolo Bypass, 1998 – 2022

Published by: California Department of Water Resources
Last updated: Thursday, July 2, 2026
File types:

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

Northern Sacramento Valley Groundwater Elevation Change Maps

Published by: California Department of Water Resources
Last updated: Thursday, July 2, 2026
File types: ZIP

Groundwater Elevation Change Maps summarize the change in groundwater level measurements over time, collected from wells in the northern Sacramento Va...

i12 Salinity Transects SouthDelta

Published by: California Department of Water Resources
Last updated: Thursday, July 2, 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...

Hydrography Presentations

Published by: California Department of Water Resources
Last updated: Thursday, July 2, 2026
File types: PDF, WEB VIDEOS

Slides, handouts, and recordings that have been presented at various conferences, workshops, and webinars by the California National Hydrography Stewa...

C2VSimCG R374_rev

Published by: California Department of Water Resources
Last updated: Thursday, July 2, 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...

i15 Parcels SWP

Published by: California Department of Water Resources
Last updated: Thursday, July 2, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This dataset is a compilation of ownership rights represented as parcels owned by the State of California, Department of Water Resources. The associat...

i19 Stormwater Permitees Municipal

Published by: California Department of Water Resources
Last updated: Thursday, July 2, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The feature datasets contain Phase 1 and Phase 2 municipal separate stormwater sewer system (MS4s) permittees in California. These draft layers are ba...