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90 datasets

Well Stimulation Permit By Type

  • Published by: California Department of Conservation
  • Last updated: Saturday, January 17, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This online map locates the wells that have NOI records in the CalGEM WellSTAR database, and provides well NOI information including operator, lease, ...

Public Land Survey System (PLSS): Township and Range

  • Published by: California Department of Conservation
  • Last updated: Sunday, January 18, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

In support of new permitting workflows associated with anticipated WellSTAR needs, the CalGEM GIS unit extended the existing BLM PLSS Township & R...

CGS Liquefaction Zones

  • Published by: California Department of Conservation
  • Last updated: Sunday, January 18, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

This is a digital Seismic Hazard Zone Map presenting areas where liquefaction may occur during a strong earthquake. Developers of properties falling w...

Post Primacy Aquifer Exemptions

  • Published by: California Department of Conservation
  • Last updated: Sunday, January 18, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This post primacy aquifer exemption data depicts areas exempted by the US EPA for Class II injection after the March 14, 1983 Primacy agreement betwee...

CalGEM: Geothermal Wells

  • Published by: California Department of Conservation
  • Last updated: Sunday, January 18, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This online map represents geothermal wells regulated by the Geologic Energy Management Division. CalGEM is the Geologic Energy Management Division of...

Public Land Survey System (PLSS): Sections

  • Published by: California Department of Conservation
  • Last updated: Sunday, January 18, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

In support of new permitting workflows associated with anticipated WellSTAR needs, the CalGEM GIS unit extended the existing BLM PLSS Township & R...

WellSTAR: Oil and Gas Wells

  • Published by: California Department of Conservation
  • Last updated: Sunday, January 18, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This online map represents oil and gas wells in the CalGEM Well Statewide Tracking and Reporting System, or WellSTAR. Wells are displayed by well type...

WellSTAR Oil and Gas Facilities: Tank Settings

  • Published by: California Department of Conservation
  • Last updated: Sunday, January 18, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This online map displays facility sites in group or by facility types in separate layers: including tank settings.CalGEM is the Geologic Energy Manage...

WellSTAR Oil and Gas Facilities: Pits and Sumps

  • Published by: California Department of Conservation
  • Last updated: Sunday, January 18, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This online map displays facility sites in group or by facility types in separate layers: including pits and sumps.CalGEM is the Geologic Energy Manag...

CGS SHZ Unevaluated Areas

  • Published by: California Department of Conservation
  • Last updated: Sunday, January 18, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

This is a digital Seismic Hazard Zone Map presenting areas where liquefaction and landslides may occur during a strong earthquake. Three types of geol...