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177 datasets

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

Published by: California State Water Resources Control Board
Last updated: Tuesday, October 7, 2025
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...

i03 Proposition1 Funding Areas

Published by: California Department of Water Resources
Last updated: Tuesday, October 7, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This data depicts California Proposition 1 Funding Area boundaries as defined by Water Code §79744, which states, "(a) Of the funds authorized by...

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

Published by: California State Water Resources Control Board
Last updated: Monday, February 3, 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...

California's National Electric Vehicle Infrastructure Funding Program Map

Published by: California Energy Commission
Last updated: Tuesday, October 7, 2025
File types: HTML, ARCGIS GEOSERVICES REST API

The California Department of Transportation (Caltrans) and the California Energy Commission (CEC) are partnering to implement the federal National Ele...

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...

CalSIP Stream Gages

Published by: California Department of Water Resources
Last updated: Tuesday, October 7, 2025
File types: ARCGIS GEOSERVICES REST API, CSV

### More information can be found at the CA DWR California Stream Improvement Program webpage at https://water.ca.gov/Work-With-Us/Technical-Assistanc...

Surface Water - Freshwater Harmful Algal Blooms

Published by: California State Water Resources Control Board
Last updated: Tuesday, October 7, 2025
File types: PDF, CSV

Freshwater harmful algal bloom (HAB) data from the Freshwater Harmful Algal Bloom (FHAB) data system. The FHAB data system is the California State Wat...

City and County Boundary Line Changes

Published by: California Department of Tax and Fee Administration
Last updated: Tuesday, October 7, 2025
File types: HTML, ARCGIS GEOSERVICES REST API

This map includes change areas for city and county boundaries filed in accordance with Government Code 54900. The initial dataset was first published ...

i19 Stormwater Permitees Municipal

Published by: California Department of Water Resources
Last updated: Tuesday, October 7, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The feature datasets contain Phase 1 and Phase 2 municipal separate stormwater sewer system (MS4s) permittees in California. These draft layers are ba...

Urban Water Use Objectives – Relevant Data

Published by: California State Water Resources Control Board
Last updated: Monday, October 6, 2025
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...