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36 datasets

CA Urban Retail Water System Water Loss Annual Loss Audit Data

Published by: California Department of Water Resources
Last updated: Sunday, April 5, 2026
File types: CSV

This dataset contains annual validated water loss audit reports submitted to the Department of Water Resources by California urban retail water suppli...

Ground Water - Water Quality Results

Published by: California State Water Resources Control Board
Last updated: Thursday, April 2, 2026
File types: EXCEL (XLSX), CSV

Groundwater quality data and related groundwater well information available on the page was queried from the GAMA Groundwater information system (**[G...

Urban Water Use Objectives – Relevant Data

Published by: California State Water Resources Control Board
Last updated: Friday, April 3, 2026
File types: CSV

The Making Conservation a California Way of Life regulation requires urban retail water suppliers (URWS) to annually calculate their Urban Water Use O...

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...

i07 Water Shortage Vulnerability Small Water Systems

Published by: California Department of Water Resources
Last updated: Sunday, April 5, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This dataset represents a water shortage vulnerability analysis performed by DWR using Small Water System boundaries pulled from the SWRCB (State Wate...

2019 California Water Quality Status Report

Published by: California State Water Resources Control Board
Last updated: Wednesday, October 23, 2019
File types: ZIP, XLSX, CSV, TXT

The California Water Quality Status Report is an annual data-driven snapshot of the Water Board’s water quality and ecosystem data. This third edition...

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...

Surface Water - 2017 California Water Quality Status Report

Published by: California State Water Resources Control Board
Last updated: Wednesday, October 23, 2019
File types: ZIP

The California Water Boards’ Water Data Center is proud to present the CA Water Quality Status Report. This report is an annual data-driven snapshot ...

California's Groundwater Live Supporting Data

Published by: California Department of Water Resources
Last updated: Sunday, April 5, 2026
File types: HTML, JPEG, PDF, DOCX, ZIP

This dataset contains files and materials in support of the California's Groundwater Live website. California's Groundwater Live is a user-friendly pl...