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125 datasets

Collection of Groundwater Applications and Tools

Published by: California Department of Water Resources
Last updated: Wednesday, April 8, 2026
File types:

This dataset includes links and descriptions to a collection of groundwater applications and tools that have been developed by the Department of Water...

Surface Water - Water Quality Regulatory Information

Published by: California State Water Resources Control Board
Last updated: Tuesday, April 7, 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....

Surface Water - Water Quality Regulated Facility Information

Published by: California State Water Resources Control Board
Last updated: Tuesday, April 7, 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...

Water Plan Water Balance Data

Published by: California Department of Water Resources
Last updated: Wednesday, April 8, 2026
File types: PDF, .ZIP, ZIP

Department of Water Resources California Water Plan program computes applied, net, and depletion water balances for California. Water balances are sim...

Environmental Monitoring Program: Discrete Water Quality Data

Published by: California Department of Water Resources
Last updated: Wednesday, April 8, 2026
File types: CSV, PDF

The Interagency Ecological Program’s (IEP) Environmental Monitoring Program (EMP) was initiated in compliance with the Water Right Decision D-1379 (no...

Surface Water - Toxicity Results

Published by: California State Water Resources Control Board
Last updated: Tuesday, April 7, 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...

Drinking Water - Public Water Systems Rates Information

Published by: California State Water Resources Control Board
Last updated: Tuesday, October 29, 2019
File types: CSV, PDF

Public Water Systems (PWS) submit their annual reports with rate information using the Electronic Annual Report (EAR) submission process on the Drinki...

Water Quality Data

Published by: California Department of Water Resources
Last updated: Wednesday, April 8, 2026
File types: CSV

The California Department of Water Resources (DWR) discrete (vs. continuous) water quality datasets contains DWR-collected, current and historical, ch...

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/)...

Drinking Water - Public Water System Annually Reported Water Production and Delivery Information 2013-2022

Published by: California State Water Resources Control Board
Last updated: Wednesday, November 27, 2024
File types: PDF, ZIP, CSV, XLSX

Amount of water produced by month and by source and the water delivered by type of use and by month for every Public Water System (PWS) reporting. Pub...