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216 datasets

Surface Water - Water Quality Regulatory Information

Published by: California State Water Resources Control Board
Last updated: Tuesday, May 26, 2026
File types: CSV, PDF

This data set lists active and historical enforcement actions records that are stored in the [California Integrated Water Quality System](https://www....

Geothermal Resource Potential by Field

Published by: California Energy Commission
Last updated: Thursday, June 25, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

This data layer contains geothermal resource areas and their technical potential used in long-term electric system modeling for Integrated Resource Pl...

Utility-Scale Renewable Capacity Totals by County: 2023

Published by: California Energy Commission
Last updated: Thursday, June 25, 2026
File types: HTML

Power plants with capacity of at least 1 MW are included in totals. Counties shaded in grey have no utility-scale renewable electric capacity. Distrib...

Bay-Delta SCHISM Milestone Mesh Versions

Published by: California Department of Water Resources
Last updated: Thursday, June 25, 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...

Solar Resource Areas (2022)

Published by: California Energy Commission
Last updated: Thursday, June 25, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Solar Resource Areas created were produced using a k-means method that groups solar generating plants into discrete regions based on their latitude, l...

Operational Electricity Market California, 2020

Published by: California Energy Commission
Last updated: Thursday, June 25, 2026
File types: HTML

Map of the operational power plants in California that are greater than 1 MW in capacity and operational in 2018. This data is aggregated from the Qua...

DWR's Basin Characterization Tools - BCTools

Published by: California Department of Water Resources
Last updated: Thursday, June 25, 2026
File types: PNG, ZIP, .ZIP, PDF

*Back to [Basin Characterization Program webpage](https://data.cnra.ca.gov/dataset/dwr-basin-characterization "Basin Characterization Program webpage"...

California Hospital Performance Ratings for Coronary Artery Bypass Graft (CABG) Surgery

Published by: Department of Health Care Access and Information
Last updated: Thursday, June 25, 2026
File types: CSV, PDF, ZIP

This dataset contains the location of hospitals that performed Coronary Artery Bypass Graft (CABG) surgery in California from 2011 to 2023. It also pr...

Surface Water - Freshwater Harmful Algal Blooms

Published by: California State Water Resources Control Board
Last updated: Wednesday, June 3, 2026
File types: PDF, CSV

Attention: Please note that the Freshwater Harmful Algal Bloom resources on the California Open Data Portal will not be updated from June 3 through Ju...

CIMIS Weather Station & Spatial CIMIS Data - Web API

Published by: California Department of Water Resources
Last updated: Thursday, June 25, 2026
File types: JSON

CIMIS data is available to the public free of charge via a web Application Programming Interface (API). The CIMIS Web API delivers data over the REST...