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283 datasets

i02 NCCAG Vegetation

Published by: California Department of Water Resources
Last updated: Tuesday, May 19, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The Natural Communities Commonly Associated with Groundwater (NCCAG) dataset is a compilation of phreatophytic vegetation, regularly flooded natural w...

i03 DAU county cnty2018

Published by: California Department of Water Resources
Last updated: Tuesday, May 19, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Detailed Analysis Unit-(DAU) Convergence via County Boundary cnty18_1 for Cal-Fire, (*See metadata for CAL-FIRE cnty18_1), State of California.The exi...

i04 CIMIS Weather Stations

Published by: California Department of Water Resources
Last updated: Tuesday, May 19, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The California Irrigation Management Information System (CIMIS) currently manages over 145 active weather stations throughout the state. Archived data...

SGMA Climate Change Resources

Published by: California Department of Water Resources
Last updated: Tuesday, May 19, 2026
File types: CSV, ZIP, XLSX, PDF

This dataset includes processed climate change datasets related to climatology, hydrology, and water operations. The climatological data provided are ...

i03 IRWM Regions

Published by: California Department of Water Resources
Last updated: Tuesday, May 19, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The Region Acceptance Process (RAP) is a component of the Integrated Regional Water Management (IRWM) Program Guidelines and is used to evaluate and a...

CalSIP Stream Gages

Published by: California Department of Water Resources
Last updated: Tuesday, May 19, 2026
File types: ARCGIS GEOSERVICES REST API, CSV

### More information can be found at the CA DWR California Stream Improvement Program webpage at https://water.ca.gov/Work-With-Us/Technical-Assistanc...

DWR's Basin Characterization Program

Published by: California Department of Water Resources
Last updated: Tuesday, May 19, 2026
File types: .ZIP, ZIP, FILE GEODATABASE, PDF

DWR has a long history of studying and characterizing California’s groundwater aquifers as a part of [California’s Groundwater (Bulletin 118)](https:/...

COVID-19 Wastewater Surveillance Data. California

Published by: California State Water Resources Control Board
Last updated: Tuesday, September 10, 2024
File types: CSV, DOCX, XLSX

NOTICE: As of September 6, 2024, the wastewater surveillance dataset will now be hosted on: https://data.chhs.ca.gov/dataset/wastewater-surveillance-d...

Medical Service Study Area Data Dictionary

Published by: Department of Health Care Access and Information
Last updated: Tuesday, May 19, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Field Name Data Type Description Statefp Number US Census Bureau unique identifier of the state Countyfp Number US Census...

i12 Levee Breaks Historic

Published by: California Department of Water Resources
Last updated: Tuesday, May 19, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Dataset was built over years based on a variety of sources and ongoing incidents during the period in which the dataset steward was in the Delta Levee...