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789 datasets

i03 LegalDeltaBoundary

Published by: California Department of Water Resources
Last updated: Saturday, May 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Department of Water Resources (DWR), Geodetic Branch, Cadastral Surveys reviewed this boundary in July, 2009, and agreed with the linework along with ...

i08 GroundwaterDepthSeasonal Contours

Published by: California Department of Water Resources
Last updated: Saturday, May 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This dataset depicts contours of estimated change in groundwater piezometric surfaces in the unconfined or uppermost semi-confined aquifers, between t...

California's Groundwater Basin Boundary Descriptions

Published by: California Department of Water Resources
Last updated: Saturday, May 23, 2026
File types:

In conjunction with the release of [California’s Groundwater Update 2020](https://data.cnra.ca.gov/dataset/caglw_update2020), DWR has compiled a compr...

SWAMP Data Dashboard

Published by: California State Water Resources Control Board
Last updated: Wednesday, May 20, 2026
File types: PDF, CSV

This dataset supports the [SWAMP Data Dashboard](https://gispublic.waterboards.ca.gov/swamp-data/), a public-facing tool developed by the [Surface Wat...

i08 GroundwaterLevelChangeSeasonal Points

Published by: California Department of Water Resources
Last updated: Saturday, May 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This dataset depicts change in groundwater level at selected monitoring locations (wells) between two specified years, by season. Change values repres...

i12 CalSIMII InflowData

Published by: California Department of Water Resources
Last updated: Saturday, May 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

The i12_InflowData dataset is a point feature class containing 33 point locations representing approximate reservoir inflow locations. Spatial referen...

Bay-Delta SCHISM Milestone Mesh Versions

Published by: California Department of Water Resources
Last updated: Saturday, May 23, 2026
File types: GZIP

This dataset includes gzipped files formats native to the Surface Water Modeling System (SMS) grid generation software or *.gr3 format native to SCHIS...

i04 CIMIS Weather Stations

Published by: California Department of Water Resources
Last updated: Saturday, May 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The California Irrigation Management Information System (CIMIS) currently manages over 145 active weather stations throughout the state. Archived data...

i12 Delta Hydrology

Published by: California Department of Water Resources
Last updated: Saturday, May 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This point dataset represents the location of gaging stations in the Sacramento-San Joaquin Delta and Suisun Marsh that have historic and statistical ...

i06 Bathymetry Index

Published by: California Department of Water Resources
Last updated: Saturday, May 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This data set, (i06_Bathymetry_Index), is a polygon feature class that represents an index of bathymetric data collected by California Department of W...