Water
Themes include well water, water quality, wastewater, watershed, storm water, drinking water.Popular datasets
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494 datasets
California Population Trends by Geography
- Published by: California Department of Water Resources
- Last updated: Friday, January 30, 2026
- File types: CSV, WEBSITE
This dataset provides population estimate trends from 1998 to the current year for each of California’s 58 counties, further disaggregated by Detailed...
Water Quality Data
- Published by: California Department of Water Resources
- Last updated: Friday, January 30, 2026
- File types: CSV
The California Department of Water Resources (DWR) discrete (vs. continuous) water quality datasets contains DWR-collected, current and historical, ch...
Stormwater - Regulatory (including Enforcement Actions) Information and Water Quality Results
- Published by: California State Water Resources Control Board
- Last updated: Tuesday, January 27, 2026
- 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, January 27, 2026
- 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 Regulated Facility Information
- Published by: California State Water Resources Control Board
- Last updated: Tuesday, January 27, 2026
- File types: CSV, XLSX, PDF
Information regarding site visits of facilities that discharge wastewater, from the [California Integrated Water Quality System](https://www.waterboar...
Surface Water - Water Quality Regulatory Information
- Published by: California State Water Resources Control Board
- Last updated: Tuesday, January 27, 2026
- 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....
CalSim 3.0 Release
- Published by: California Department of Water Resources
- Last updated: Friday, January 30, 2026
- File types: ZIP, PDF
CalSim 3.0 Release to the public...
Surface Water - Chemistry Results - CEDEN Augmentation
- Published by: California State Water Resources Control Board
- Last updated: Monday, January 26, 2026
- File types: CSV, PDF
This dataset includes field and lab chemistry data that has been submitted to the [California Environmental Data Exchange Network](https://ceden.org/)...
SWAMP Data Dashboard
- Published by: California State Water Resources Control Board
- Last updated: Monday, January 26, 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...
WDL Ground Surface Displacement - Land Subsidence Monitoring
- Published by: California Department of Water Resources
- Last updated: Friday, January 30, 2026
- File types: CSV
Borehole extensometers are a more site specific method of measuring land subsidence. These instruments consist of a pipe or cable anchored at the bott...