Water
Themes include well water, water quality, wastewater, watershed, storm water, drinking water.Popular datasets
Well Completion Reports
Surface Water - Fecal Indicator Bacteria Monitoring Results
Drinking Water - SAFER Dashboard Failing and At-Risk Drinking Water Systems
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499 datasets
DWR Continuous Data Download Links
- Published by: California Department of Water Resources
- Last updated: Saturday, April 18, 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...
Surface Water - Freshwater Harmful Algal Blooms
- Published by: California State Water Resources Control Board
- Last updated: Saturday, April 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...
Well Completion Reports
- Published by: California Department of Water Resources
- Last updated: Saturday, April 18, 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...
Drinking Water - SAFER Dashboard Failing and At-Risk Drinking Water Systems
- Published by: California State Water Resources Control Board
- Last updated: Friday, April 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...
Surface Water - Fecal Indicator Bacteria Monitoring Results
- Published by: California State Water Resources Control Board
- Last updated: Friday, April 17, 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...
Groundwater Sustainability Plan Annual Report Data
- Published by: California Department of Water Resources
- Last updated: Saturday, April 18, 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, April 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...
GSP Monitoring Data
- Published by: California Department of Water Resources
- Last updated: Saturday, April 18, 2026
- File types: CSV
The Groundwater Sustainability Plan (GSP) Monitoring dataset contains the monitoring sites and associated groundwater level, subsidence or streamflow ...
Dry Well Reporting System Data
- Published by: California Department of Water Resources
- Last updated: Saturday, April 18, 2026
- File types: CSV
In California, water systems serving one (1) to 15 households are regulated at the county level. Counties vary in their practices, but rarely do count...
CA Urban Retail Water System Water Loss Annual Loss Audit Data
- Published by: California Department of Water Resources
- Last updated: Saturday, April 18, 2026
- File types: CSV
This dataset contains annual validated water loss audit reports submitted to the Department of Water Resources by California urban retail water suppli...