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
56 datasets
Surface Water - Freshwater Harmful Algal Blooms
- Published by: California State Water Resources Control Board
- Last updated: Tuesday, July 28, 2026
- 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...
SWAMP Data Dashboard
- Published by: California State Water Resources Control Board
- Last updated: Monday, July 27, 2026
- File types: PDF, CSV
This dataset supports the [SWAMP Data Dashboard](https://gispublic.waterboards.ca.gov/swamp-data/), a public-facing tool developed by the [Surface Wat...
Surface Water - Fecal Indicator Bacteria Monitoring Results
- Published by: California State Water Resources Control Board
- Last updated: Monday, July 27, 2026
- File types: CSV, PDF
This dataset contains fecal indicator bacteria (FIB) monitoring results collected from surface waters across California. It includes results for _Esch...
Drinking Water - SAFER Dashboard Failing and At-Risk Drinking Water Systems
- Published by: California State Water Resources Control Board
- Last updated: Monday, July 27, 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...
GEARS Reporting Data
- Published by: California State Water Resources Control Board
- Last updated: Friday, July 24, 2026
- File types: CSV
This dataset consists of all groundwater extractions and well information that has been reported by well owners in GEARS. All information is self-repo...
Urban Water Use Objectives – Relevant Data
- Published by: California State Water Resources Control Board
- Last updated: Friday, July 24, 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...
Central Valley Water Board E. coli Monitoring Results
- Published by: California State Water Resources Control Board
- Last updated: Thursday, July 23, 2026
- File types: CSV
Draft - E. coli monitoring results from the Central Valley Regional Water Quality Control Board. _E. coli_ is a type of bacteria used to indicate feca...
Urban Water Use Objectives – Compiled Report Data
- Published by: California State Water Resources Control Board
- Last updated: Wednesday, July 22, 2026
- File types: CSV
The Making Conservation a California Way of Life regulation requires urban retail water suppliers to annually calculate their Urban Water Use Objectiv...
Urban Retail Water Supplier - Water Conservation, Supply, and Demand (June 2014 onwards)
- Published by: California State Water Resources Control Board
- Last updated: Wednesday, July 15, 2026
- 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...
Surface Water - Toxicity Results
- Published by: California State Water Resources Control Board
- Last updated: Tuesday, July 14, 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...