California State Water Resources Control Board
Website: https://www.waterboards.ca.gov/
To preserve, enhance, and restore the quality of California’s water resources and drinking water for the protection of the environment, public health, and all beneficial uses, and to ensure proper water resource allocation and efficient use, for the benefit of present and future generations.
Search California State Water Resources Control Board datasets
57 datasets
Drinking Water - SAFER Dashboard Failing and At-Risk Drinking Water Systems
- Published by: California State Water Resources Control Board
- Last updated: Thursday, December 25, 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...
Urban Water Use Objectives – Relevant Data
- Published by: California State Water Resources Control Board
- Last updated: Monday, December 22, 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...
Surface Water - Fecal Indicator Bacteria Monitoring Results
- Published by: California State Water Resources Control Board
- Last updated: Thursday, December 18, 2025
- File types: CSV, PDF
Attention: Updates to the Safe to Swim Map and all open data portal resources will be temporarily paused from December 19, 2025 through January 7, 202...
Ground Water - Water Quality Results
- Published by: California State Water Resources Control Board
- Last updated: Thursday, December 18, 2025
- 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...
Surface Water - Freshwater Harmful Algal Blooms
- Published by: California State Water Resources Control Board
- Last updated: Thursday, December 18, 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...
Urban Retail Water Supplier - Water Conservation, Supply, and Demand (June 2014 onwards)
- Published by: California State Water Resources Control Board
- Last updated: Wednesday, December 17, 2025
- File types: PDF, CSV, XLSX
Monthly reports of water use and conservation activities by urban retail water suppliers, which are generally defined as agencies serving over 3,000 s...
Stormwater - Regulatory (including Enforcement Actions) Information and Water Quality Results
- Published by: California State Water Resources Control Board
- Last updated: Tuesday, December 16, 2025
- File types: CSV
This dataset looks at all aspects of storm water management in California as managed and regulated by the State Water Resources Control Board, from th...
Surface Water - Toxicity Results
- Published by: California State Water Resources Control Board
- Last updated: Tuesday, December 16, 2025
- File types: PDF, CSV, ZIP
Surface water toxicity data from the [California Environmental Data Exchange Network](https://ceden.org/) (CEDEN). CEDEN is the California State Water...
Surface Water - Water Quality Regulatory Information
- Published by: California State Water Resources Control Board
- Last updated: Tuesday, December 16, 2025
- File types: CSV, PDF
This data set lists active and historical enforcement actions records that are stored in the [California Integrated Water Quality System](https://www....
Surface Water - Water Quality Regulated Facility Information
- Published by: California State Water Resources Control Board
- Last updated: Tuesday, December 16, 2025
- File types: CSV, XLSX, PDF
Information regarding site visits of facilities that discharge wastewater, from the [California Integrated Water Quality System](https://www.waterboar...