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133 datasets

Surface Water - Water Quality Regulated Facility Information

  • Published by: California State Water Resources Control Board
  • Last updated: Tuesday, April 21, 2026
  • File types: CSV, XLSX, PDF

Information regarding site visits of facilities that discharge wastewater, from the [California Integrated Water Quality System](https://www.waterboar...

California Overlapping Cities and Counties and Identifiers

  • Published by: California Department of Technology
  • Last updated: Wednesday, October 1, 2025
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

WARNING: This is a pre-release dataset and its fields names and data structures are subject to change. It should be considered pre-release until the e...

California Overlapping Cities and Counties and Identifiers with Coastal Buffers

  • Published by: California Department of Technology
  • Last updated: Wednesday, October 1, 2025
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

WARNING: This is a pre-release dataset and its fields names and data structures are subject to change. It should be considered pre-release until the e...

California's Groundwater Update 2020 (Bulletin 118)

  • Published by: California Department of Water Resources
  • Last updated: Monday, April 27, 2026
  • File types: PDF, XLSX, XLS, ZIP, SHP

California's Groundwater Update 2020 (CalGW) is California's foremost technical publication on groundwater in the state of California. CalGW, formally...

CalEnviroScreen 2.0

  • Published by: California Office of Environmental Health Hazard Assessment
  • Last updated: Wednesday, October 23, 2019
  • File types: CSV, XLSX, PDF

The Office of Environmental Health Hazard Assessment (OEHHA), on behalf of the California Environmental Protection Agency (CalEPA), developed Californ...

CalEnviroScreen 3.0 Results

  • Published by: California Office of Environmental Health Hazard Assessment
  • Last updated: Wednesday, October 23, 2019
  • File types: PDF, CSV, SHP

CalEnviroScreen is a mapping tool that helps identify California communities that are most affected by many sources of pollution, and where people are...

California County Boundaries and Identifiers with Coastal Buffers

  • Published by: California Department of Technology
  • Last updated: Wednesday, October 1, 2025
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

Note: The schema changed in February 2025 - please see below. We will post a roadmap of upcoming changes, but service URLs and schema are now stable. ...

California County Boundaries and Identifiers

  • Published by: California Department of Technology
  • Last updated: Wednesday, October 1, 2025
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

Note: The schema changed in February 2025 - please see below. We will post a roadmap of upcoming changes, but service URLs and schema are now stable. ...

California City Boundaries and Identifiers with Coastal Buffers

  • Published by: California Department of Technology
  • Last updated: Wednesday, October 1, 2025
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

Note: The schema changed in February 2025 - please see below. We will post a roadmap of upcoming changes, but service URLs and schema are now stable. ...

California City Boundaries and Identifiers

  • Published by: California Department of Technology
  • Last updated: Wednesday, October 1, 2025
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

Note: The schema changed in February 2025 - please see below. We will post a roadmap of upcoming changes, but service URLs and schema are now stable. ...