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700 datasets

California Historical Fire Perimeters

Published by: CAL FIRE
Last updated: Tuesday, June 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

The California Department of Forestry and Fire Protection's Fire and Resource Assessment Program (FRAP) annually maintains and distributes an historic...

California Fire Perimeters (1950+)

Published by: CAL FIRE
Last updated: Tuesday, June 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

The California Department of Forestry and Fire Protection's Fire and Resource Assessment Program (FRAP) annually maintains and distributes an historic...

California Fire Perimeters (all)

Published by: CAL FIRE
Last updated: Tuesday, June 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

The California Department of Forestry and Fire Protection's Fire and Resource Assessment Program (FRAP) annually maintains and distributes an historic...

Recent Large Fire Perimeters (GT 5000 acres)

Published by: CAL FIRE
Last updated: Tuesday, June 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

The California Department of Forestry and Fire Protection's Fire and Resource Assessment Program (FRAP) annually maintains and distributes an historic...

Surface Water - Toxicity Results

Published by: California State Water Resources Control Board
Last updated: Thursday, May 28, 2026
File types: PDF, CSV, ZIP

Surface water toxicity data from the [California Environmental Data Exchange Network](https://ceden.waterboards.ca.gov) (CEDEN). CEDEN is the Californ...

Surface Water - Water Quality Regulated Facility Information

Published by: California State Water Resources Control Board
Last updated: Tuesday, May 26, 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...

Surface Water - Chemistry Results - CEDEN Augmentation

Published by: California State Water Resources Control Board
Last updated: Wednesday, April 15, 2026
File types: CSV, PDF

This dataset includes field and lab chemistry data that has been submitted to the [California Environmental Data Exchange Network](https://ceden.water...

SWAMP Data Dashboard

Published by: California State Water Resources Control Board
Last updated: Monday, June 1, 2026
File types: PDF, CSV

Attention: Please note that the SWAMP Data Dashboard resources on the California Open Data Portal will not be updated from June 3 through June 25, 202...

Surface Water - Fecal Indicator Bacteria Monitoring Results

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

Attention: Please note that the Safe to Swim map and its associated resources on California Open Data Portal will not be updated between June 3 to Jun...

Surface Water - Aquatic Organism Tissue Sample Results

Published by: California State Water Resources Control Board
Last updated: Thursday, May 28, 2026
File types: PDF, ZIP, CSV

This data set provides results of tissue from organisms found in surface waters, from the [California Environmental Data Exchange Network](https://ced...