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9 datasets

Groundwater Basin Boundary Descriptions - Sacramento River Region (5-XXX Basins)

Published by: California Department of Water Resources
Last updated: Sunday, April 5, 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: Sunday, April 5, 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 - Lahontan Region (6-XXX Basins)

Published by: California Department of Water Resources
Last updated: Sunday, April 5, 2026
File types: PDF

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

Northern Sacramento Valley Groundwater Elevation Change Maps

Published by: California Department of Water Resources
Last updated: Sunday, April 5, 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...

DWR Airborne Electromagnetic (AEM) Surveys Data

Published by: California Department of Water Resources
Last updated: Sunday, April 5, 2026
File types: PDF, AGOL, ZIP, FILE GEODATABASE OR SHAPEFILE, SHP

#Statewide AEM Surveys Project Overview The Department of Water Resources’ (DWR’s) Statewide Airborne Electromagnetic (AEM) Surveys Project is funded...

i12 Flood Bypasses 2012

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

This feature class is a vector file containing polygons that represent the flood control bypasses of the Sacramento and San Joaquin Rivers. Bypasses c...

i12 Flood Bypasses 2014

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

This feature class is a vector file containing polygons that represent the flood control bypasses of the Sacramento and San Joaquin Rivers. Bypasses c...

DWR Technical Support Services (TSS)

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

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

Continuous Groundwater Level Measurements

Published by: California Department of Water Resources
Last updated: Sunday, April 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...