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802 datasets

Paleo-Dendrochronological "Tree-Ring" Hydroclimatic Reconstructions for Northern and Southern California River Basins

Published by: California Department of Water Resources
Last updated: Saturday, July 25, 2026
File types: PDF, CSV, ZIP

### Background Tree-ring chronologies allow assessment of hydrologic variability over centuries to millennia, gives historic context for assessing re...

i07 Water Shortage Vulnerability Sections

Published by: California Department of Water Resources
Last updated: Saturday, July 25, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This dataset represents a water shortage vulnerability analysis performed by DWR using modified PLSS sections pulled from the Well Completion Report P...

Urban Water Use Objectives – Relevant Data

Published by: California State Water Resources Control Board
Last updated: Friday, July 24, 2026
File types: CSV

The Making Conservation a California Way of Life regulation requires urban retail water suppliers (URWS) to annually calculate their Urban Water Use O...

Characterization of Sandy Beaches and Adjacent Surf Zones, California North Coast MPA Baseline Study, 2014 to 2015

Published by: California Ocean Protection Council
Last updated: Friday, July 24, 2026
File types: PDF, ZIP, CSV, XML

We combined taxonomically detailed surveys of macroinvertebrates and birds with targeted sampling of regionally important focal taxa including surf zo...

California Snow Data

Published by: California Department of Water Resources
Last updated: Saturday, July 25, 2026
File types: CSV, PDF, WEB APPLICATION

The California Snow Data page contains resources from the California Data Exchange Center (CDEC) in open and machine readable format. These resources ...

Vegetation - San Mateo County [ds3021]

Published by: California Department of Fish and Wildlife
Last updated: Saturday, July 25, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

In 2018, the Golden Gate National Parks Conservancy (Parks Conservancy) (https://parksconservancy.org), non-profit support partner to the National Par...

Water Shortage Vulnerability Analysis Archive

Published by: California Department of Water Resources
Last updated: Saturday, July 25, 2026
File types: FILE GEODATABASE, ZIP, EXCEL (XLSX)

This page is meant to act as an archival repository for previous Water Shortage Vulnerability analyses, which includes the Water Shortage Vulnerabilit...

Vegetation - Sierra Nevada Compilation [ds3271]

Published by: California Department of Fish and Wildlife
Last updated: Saturday, July 25, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Geodatabase feature class containing a map tile of vegetation within the Sierra Nevada and Sierra Nevada Foothills Ecoregions. The vegetation tile com...

Surface Water - Toxicity Results

Published by: California State Water Resources Control Board
Last updated: Tuesday, July 14, 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 - Fecal Indicator Bacteria Monitoring Results

Published by: California State Water Resources Control Board
Last updated: Friday, July 24, 2026
File types: CSV, PDF

This dataset contains fecal indicator bacteria (FIB) monitoring results collected from surface waters across California. It includes results for _Esch...