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
55 datasets
Drinking Water - SAFER Dashboard Failing and At-Risk Drinking Water Systems
- Published by: California State Water Resources Control Board
- Last updated: Friday, June 5, 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...
Urban Water Use Objectives – Compiled Report Data
- Published by: California State Water Resources Control Board
- Last updated: Thursday, June 4, 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...
Surface Water - Freshwater Harmful Algal Blooms
- Published by: California State Water Resources Control Board
- Last updated: Wednesday, June 3, 2026
- File types: PDF, CSV
Attention: Please note that the Freshwater Harmful Algal Bloom resources on the California Open Data Portal will not be updated from June 3 through Ju...
Surface Water - Fecal Indicator Bacteria Monitoring Results
- Published by: California State Water Resources Control Board
- Last updated: Wednesday, June 3, 2026
- File types: CSV, PDF
Attention: Please note that the Safe to Swim map and its associated resources on California Open Data Portal will not be updated between June 3 to Jun...
SWAMP Data Dashboard
- Published by: California State Water Resources Control Board
- Last updated: Monday, June 1, 2026
- File types: PDF, CSV
Attention: Please note that the SWAMP Data Dashboard resources on the California Open Data Portal will not be updated from June 3 through June 25, 202...
Ground Water - Water Quality Regulatory Information
- Published by: California State Water Resources Control Board
- Last updated: Monday, June 1, 2026
- File types: CSV
GeoTracker is the Water Boards' data management system for sites that impact, or have the potential to impact, water quality in California, with empha...
Central Valley Water Board E. coli Monitoring Results
- Published by: California State Water Resources Control Board
- Last updated: Thursday, May 28, 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...
Surface Water - Habitat Results
- Published by: California State Water Resources Control Board
- Last updated: Thursday, May 28, 2026
- File types: PDF, ZIP, CSV
This data provides results from field analyses, from the [California Environmental Data Exchange Network](https://ceden.waterboards.ca.gov) (CEDEN). T...
Surface Water - Aquatic Organism Tissue Sample Results
- Published by: California State Water Resources Control Board
- Last updated: Thursday, May 28, 2026
- File types: PDF, ZIP, CSV
This data set provides results of tissue from organisms found in surface waters, from the [California Environmental Data Exchange Network](https://ced...
Surface Water - Chemistry Results
- Published by: California State Water Resources Control Board
- Last updated: Thursday, May 28, 2026
- File types: PDF, ZIP, CSV
This data provides results from the [California Environmental Data Exchange Network](https://ceden.waterboards.ca.gov) (CEDEN) for field and lab chemi...