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180 datasets

Drinking Water - SAFER Dashboard Failing and At-Risk Drinking Water Systems

Published by: California State Water Resources Control Board
Last updated: Monday, May 4, 2026
File types: PDF, EXCEL (XLSX), CSV

The Division of Drinking Water (DDW) identifies Failing and At-Risk community water systems and K-12 non-transient, non-community schools. This inform...

CA Zip Code Boundaries

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

This feature service is derived from the Esri "United States Zip Code Boundaries" layer, queried to only CA data.For the original data see: ...

Medical Service Study Areas

Published by: Department of Health Care Access and Information
Last updated: Tuesday, May 5, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This is the current Medical Service Study Area. California Medical Service Study Areas are created by the California Department of Health Care Access ...

Toxicity Criteria Database

Published by: California Office of Environmental Health Hazard Assessment
Last updated: Tuesday, December 30, 2025
File types: CSV, PDF

Toxicity data for Air (Acute and Chronic Reference Exposure Levels (RELs)), Water (Public Health Goals (PHGs)), Soils (California Human Health Screeni...

Wildland Urban Interface

Published by: CAL FIRE
Last updated: Monday, May 4, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The current dataset is appropriate for displaying the overall pattern of WUI development at the county level, and comparing counties in terms of devel...

DACs - Census

Published by: California Department of Water Resources
Last updated: Monday, May 4, 2026
File types: ZIP

The following data were used for the Department of Water Resources' (DWR) Disadvantaged Communities (DAC) Mapping Tool: https://gis.water.ca.gov/app/d...

Drinking Water - Open Environmental Data Project - March 23, 2023 Workshop

Published by: California State Water Resources Control Board
Last updated: Monday, November 10, 2025
File types: PDF, HTML, CSV, SHP, ZIP, PPTX

The following datasets related to regulated drinking water system facilities in California have been developed and are available for the purpose of th...

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...

Drinking Water - Public Water System Annually Reported Water Production and Delivery Information 2013-2022

Published by: California State Water Resources Control Board
Last updated: Wednesday, November 27, 2024
File types: PDF, ZIP, CSV, XLSX

Amount of water produced by month and by source and the water delivered by type of use and by month for every Public Water System (PWS) reporting. Pub...

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...