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282 datasets

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...

i07 Water Shortage Vulnerability Small Water Systems

Published by: California Department of Water Resources
Last updated: Sunday, April 12, 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...

Drinking Water - Public Water System Information

Published by: California State Water Resources Control Board
Last updated: Thursday, August 22, 2024
File types: PDF, CSV

The is a curated dataset of information for all public water systems (PWS) in California, including the name, location and some general informaiton fo...

Ground Water - Water Quality Regulatory Information

Published by: California State Water Resources Control Board
Last updated: Monday, April 6, 2026
File types: CSV

GeoTracker is the Water Boards' data management system for sites that impact, or have the potential to impact, water quality in California, with empha...

i03 Water Plan Planning Areas

Published by: California Department of Water Resources
Last updated: Sunday, April 12, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Description for i03_DAU_county_cnty2018 is as follows:Detailed Analysis Unit-(DAU) Convergence via County Boundary cnty18_1 for Cal-Fire, (*See metada...

Beach Advisories (Postings and Closures) and Beach Water Quality Monitoring

Published by: California State Water Resources Control Board
Last updated: Tuesday, March 17, 2026
File types: PDF, CSV, ZIP

One of California's biggest industries is tourism, and beaches are a significant tourist attraction as well as being an integral part of California’s ...

State Water Project Facilitated Non-Project Water Transfers

Published by: California Department of Water Resources
Last updated: Sunday, April 12, 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...

California Water Plan - Groundwater Update 2013

Published by: California Department of Water Resources
Last updated: Sunday, April 12, 2026
File types: PDF

California's Groundwater Update 2013: A Compilation of Enhanced Content for California Water Plan Update 2013 compiles and analyzes readily-available ...

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...

Surface Water - Flow Targets for Southern California Streams

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

Changes to instream flow are known to be one of the major factors that affect the health of biological communities. Flow alteration can degrade physic...