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684 datasets

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...

IWFM (Integrated Water Flow Model) - Version 2015.0.961

Published by: California Department of Water Resources
Last updated: Saturday, April 11, 2026
File types: PDF, ZIP

IWFM (Integrated Water Flow Model) - Version 2015.0.961 (released February 5, 2020)...

Integrated Water Flow Model (IWFM) - Version 2015.0.828

Published by: California Department of Water Resources
Last updated: Saturday, April 11, 2026
File types: PDF, ZIP

IWFM (Integrated Water Flow Model) - Version 2015.0.828 (released March 20, 2019)...

Integrated Water Flow Model (IWFM) - Version 2015.0.706

Published by: California Department of Water Resources
Last updated: Saturday, April 11, 2026
File types: PDF, ZIP

IWFM (Integrated Water Flow Model) - Version 2015.0.706 (released April 23, 2018)...

IWFM (Integrated Water Flow Model) - Version 2015.0.1045

Published by: California Department of Water Resources
Last updated: Saturday, April 11, 2026
File types: PDF, ZIP

IWFM (Integrated Water Flow Model) - Version 2015.0.1045 (released August 25, 2020), updated to Version 2015.1.1045 on April 2, 2021 to incorporate a ...

IWFM (Integrated Water Flow Model) - Version 2015.0.1113

Published by: California Department of Water Resources
Last updated: Saturday, April 11, 2026
File types: PDF, ZIP

IWFM (Integrated Water Flow Model) - Version 2015.0.1113 (released January 13, 2021), updated to Version 2015.1.1113 on February 12, 2021 to incorpora...

Surface Water - 2017 California Water Quality Status Report

Published by: California State Water Resources Control Board
Last updated: Wednesday, October 23, 2019
File types: ZIP

The California Water Boards’ Water Data Center is proud to present the CA Water Quality Status Report. This report is an annual data-driven snapshot ...

i07 Water Shortage Vulnerability Small Water Systems

Published by: California Department of Water Resources
Last updated: Saturday, April 11, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This dataset represents a water shortage vulnerability analysis performed by DWR using Small Water System boundaries pulled from the SWRCB (State Wate...

Surface Water - 2018 California Water Quality Status Report

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

The California Water Quality Status Report is an annual data-driven snapshot of the Water Board’s water quality and ecosystem data. This second editio...

State Water Project Facilitated Non-Project Water Transfers

Published by: California Department of Water Resources
Last updated: Saturday, April 11, 2026
File types: WEB APP

A [water transfer](https://water.ca.gov/Programs/State-Water-Project/Management/Water-Transfers) is a voluntary sale of water proposed and initiated b...