Water
Themes include well water, water quality, wastewater, watershed, storm water, drinking water.Popular datasets
Well Completion Reports
Drinking Water - SAFER Dashboard Failing and At-Risk Drinking Water Systems
Beach Advisories (Postings and Closures) and Beach Water Quality Monitoring
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499 datasets
Drinking Water - SAFER Dashboard Failing and At-Risk Drinking Water Systems
- Published by: California State Water Resources Control Board
- Last updated: Saturday, May 16, 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...
Surface Water - Freshwater Harmful Algal Blooms
- Published by: California State Water Resources Control Board
- Last updated: Saturday, May 16, 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...
DWR Continuous Data Download Links
- Published by: California Department of Water Resources
- Last updated: Saturday, May 16, 2026
- File types: CSV
Stations and a table of download links for time-series data, from DWR's continuous environmental monitoring database. For more information, see DWR's...
Well Completion Reports
- Published by: California Department of Water Resources
- Last updated: Saturday, May 16, 2026
- File types: CSV, XLSX
This Well Completion Report dataset represents an index of records from the California Department of Water Resources' (DWR) Online System for Well Com...
Spatial CIMIS ETo maps — Daily Reference Evapotranspiration for California
- Published by: California Department of Water Resources
- Last updated: Saturday, May 16, 2026
- File types: GEOTIFF
🔔 **Data now available in Cloud-Optimized GeoTIFF format for faster access!** ### Summary This dataset contains daily grass-reference evapotransp...
Clifton Court Forebay Predation Study - Fish Sampling
- Published by: California Department of Water Resources
- Last updated: Saturday, May 16, 2026
- File types: CSV
This dataset is part of the Clifton Court Forebay Predation Study, a multi-year effort led by the California Department of Water Resources to understa...
Surface Water - Fecal Indicator Bacteria Monitoring Results
- Published by: California State Water Resources Control Board
- Last updated: Friday, May 15, 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...
State Water Project Delivery Capability Report (DCR) 2025
- Published by: California Department of Water Resources
- Last updated: Saturday, May 16, 2026
- File types: PDF, ZIP
State Water Project Delivery Capability Report (DCR) 2025...
Groundwater Sustainability Plan Annual Report Data
- Published by: California Department of Water Resources
- Last updated: Saturday, May 16, 2026
- File types: CSV
The Groundwater Sustainability Plan (GSP) Annual Report (AR) datasets contain the following data submitted by Groundwater Sustainability Agencies (GSA...
Periodic Groundwater Level Measurements
- Published by: California Department of Water Resources
- Last updated: Saturday, May 16, 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...