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256 datasets

Water Quality Data

Published by: California Department of Water Resources
Last updated: Friday, June 26, 2026
File types: CSV

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

Characterization of Seabirds, California North Coast MPA Baseline Study, 2014 to 2015

Published by: California Ocean Protection Council
Last updated: Friday, June 26, 2026
File types: PDF, ZIP, CSV, TXT, XML

We completed four distinct projects to collect baseline data at varying spatial and temporal scales. First, we used data from aerial photographic surv...

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...

California Vegetation Burn Severity Data Online Viewer Web App

Published by: CAL FIRE
Last updated: Friday, June 26, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

RdNBR is a remotely sensed index of the pre- to post-fire change in vegetation greenness, in this case the growing seasons in the year prior to and th...

DWR Airborne Electromagnetic (AEM) Surveys Data

Published by: California Department of Water Resources
Last updated: Friday, June 26, 2026
File types: PDF, AGOL, ZIP, FILE GEODATABASE OR SHAPEFILE, SHP

*Back to [Basin Characterization Program webpage](https://data.cnra.ca.gov/dataset/dwr-basin-characterization "Basin Characterization Program webpage"...

National Hydrography Data - NHD and 3DHP

Published by: California Department of Water Resources
Last updated: Friday, June 26, 2026
File types: WEBSITE, ARCGIS GEOSERVICES REST API, PDF, ZIP, CSV

The USGS National Hydrography Dataset (NHD) downloadable data collection from The National Map (TNM) is a comprehensive set of digital spatial data th...