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545 datasets

Surface Water - Toxicity Results

Published by: California State Water Resources Control Board
Last updated: Thursday, May 28, 2026
File types: PDF, CSV, ZIP

Surface water toxicity data from the [California Environmental Data Exchange Network](https://ceden.waterboards.ca.gov) (CEDEN). CEDEN is the Californ...

Surface Water - Chemistry Results - CEDEN Augmentation

Published by: California State Water Resources Control Board
Last updated: Wednesday, April 15, 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.water...

Surface Water - Fecal Indicator Bacteria Monitoring Results

Published by: California State Water Resources Control Board
Last updated: Friday, May 29, 2026
File types: CSV, PDF

Attention: Please note that the Safe to Swim map and its associated resources on California Open Data Portal will not be updated between June 3 to Jun...

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

Published by: California State Water Resources Control Board
Last updated: Monday, November 10, 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...

Statewide Crop Mapping

Published by: California Department of Water Resources
Last updated: Sunday, May 31, 2026
File types: DATA, ZIP, PDF, REST SERVICE, GDB, SHP, STORY MAPS

The California Department of Water Resources (DWR) has been collecting land use data throughout the state and using it to produce agricultural water u...