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Drinking Water - Open Environmental Data Project - March 23, 2023 Workshop

Published by: California State Water Resources Control Board
Last updated: Monday, February 3, 2025
File types: PDF, HTML, CSV, SHP, ZIP, PPTX

The following datasets related to regulated drinking water system facilities in California have been developed and are available for the purpose of th...

Water Quality - Effluent - Electronic Self-Monitoring Report (eSMR) Data

Published by: California State Water Resources Control Board
Last updated: Tuesday, October 7, 2025
File types: PDF, ZIP, CSV

Wastewater discharges are regulated by the Water Board. Those regulated are generally required to submit Self-Monitoring Reports to the State or Regio...

Low Water Line

Published by: California State Lands Commission
Last updated: Friday, October 17, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

The California State Lands Commission (CSLC) was created by the California Legislature in 1938 and given the authority and responsibility to manage ce...

High Water Line

Published by: California State Lands Commission
Last updated: Friday, October 17, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

The California State Lands Commission (CSLC) was created by the California Legislature in 1938 and given the authority and responsibility to manage ce...

Water Budget Handbook

Published by: California Department of Water Resources
Last updated: Saturday, October 18, 2025
File types: PDF, XLSX

The California Department of Water Resources (DWR) has released a draft "Handbook for Water Budget Development: With or Without Models" (Water Budget ...

Low Water Line

Published by: California State Lands Commission
Last updated: Monday, November 6, 2023
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, GEOJSON, ZIP, KML

This data was created to depict portions of state-owned Sovereign Lands that are under the jurisdiction of the California State Lands Commission. Data...

Drinking Water - SAFER Dashboard Failing and At-Risk Drinking Water Systems

Published by: California State Water Resources Control Board
Last updated: Saturday, October 18, 2025
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 - Chemistry Results

Published by: California State Water Resources Control Board
Last updated: Tuesday, October 7, 2025
File types: PDF, ZIP, CSV

This data provides results from the [California Environmental Data Exchange Network](https://ceden.org/) (CEDEN) for field and lab chemistry analyses....

California Water Rights Inspections

Published by: California State Water Resources Control Board
Last updated: Friday, August 29, 2025
File types: CSV, XLSX, DOCX

This list includes detail information for each inspection record as stored in the State Water Resources Control Board's "Electronic Water Rights Infor...

California Water Rights Investigations

Published by: California State Water Resources Control Board
Last updated: Friday, August 29, 2025
File types: CSV, XLSX

This list includes detail information for each investigation record as stored in the State Water Resources Control Board's "Electronic Water Rights In...