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497 datasets
Juvenile Salmonid Collection System (JSCS) Pilot Project Fish and Environmental Data – McCloud River and Shasta Reservoir (2022–2025)
- Published by: California Department of Water Resources
- Last updated: Wednesday, March 18, 2026
- File types: CSV, PDF
The California Department of Water Resources (DWR) conducted the Juvenile Salmonid Collection System (JSCS) Pilot Project from 2022 — 2025 to test new...
Surface Water - Freshwater Harmful Algal Blooms
- Published by: California State Water Resources Control Board
- Last updated: Wednesday, March 18, 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...
TRE ALTAMIRA InSAR Subsidence Data
- Published by: California Department of Water Resources
- Last updated: Wednesday, March 18, 2026
- File types: PDF, HTML, ZIP
This dataset represents measurements of vertical ground surface displacement in more than 200 of the high-use and populated groundwater basins across ...
Beach Advisories (Postings and Closures) and Beach Water Quality Monitoring
- Published by: California State Water Resources Control Board
- Last updated: Tuesday, March 17, 2026
- File types: PDF, CSV, ZIP
One of California's biggest industries is tourism, and beaches are a significant tourist attraction as well as being an integral part of California’s ...
Watershed Boundary Dataset (WBD)
- Published by: California Department of Water Resources
- Last updated: Wednesday, March 18, 2026
- File types: FILE GEODATABASE OR SHAPEFILE, ARCGIS GEOSERVICES REST API, WEBSITE, HTML, PDF
The Watershed Boundary Dataset (WBD) from USGS' The National Map (TNM) defines the perimeter of drainage areas formed by the terrain and other landsca...
Surface Water - Toxicity Results
- Published by: California State Water Resources Control Board
- Last updated: Tuesday, March 17, 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, March 17, 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, March 17, 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....
Drinking Water - SAFER Dashboard Failing and At-Risk Drinking Water Systems
- Published by: California State Water Resources Control Board
- Last updated: Tuesday, March 17, 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...
Periodic Groundwater Level Measurements
- Published by: California Department of Water Resources
- Last updated: Wednesday, March 18, 2026
- File types: CSV, ZIP, TXT
The DWR Periodic Groundwater Levels dataset contains seasonal and long-term groundwater level measurements collected by the Department of Water Resour...