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3273 datasets

Well Completion Reports

  • Published by: California Department of Water Resources
  • Last updated: Wednesday, February 25, 2026
  • File types: CSV, XLSX

This Well Completion Report dataset represents an index of records from the California Department of Water Resources' (DWR) Online System for Well Com...

WRIMS GUI

  • Published by: California Department of Water Resources
  • Last updated: Wednesday, February 25, 2026
  • File types: ZIP, DOCX, PDF, JAR, DLL, LOG, BAT, APPLICATION/X-MSDOS-PROGRAM

WRIMS GUI related software package and documents...

DWR's Basin Characterization Program

  • Published by: California Department of Water Resources
  • Last updated: Wednesday, February 25, 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:/...

National Hydrography Data - NHD and 3DHP

  • Published by: California Department of Water Resources
  • Last updated: Wednesday, February 25, 2026
  • File types: PDF, ZIP, WEBSITE, ARCGIS GEOSERVICES REST API, CSV, WEB VIDEOS

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

California Population Trends by Geography

  • Published by: California Department of Water Resources
  • Last updated: Wednesday, February 25, 2026
  • File types: CSV, WEBSITE

The datasets provide population estimate trends from 1998 to the current year for each of California’s 58 counties, further disaggregated by Detailed ...

Groundwater Sustainability Plan Annual Report Data

  • Published by: California Department of Water Resources
  • Last updated: Wednesday, February 25, 2026
  • File types: CSV

The Groundwater Sustainability Plan (GSP) Annual Report (AR) datasets contain the following data submitted by Groundwater Sustainability Agencies (GSA...

Periodic Groundwater Level Measurements

  • Published by: California Department of Water Resources
  • Last updated: Wednesday, February 25, 2026
  • File types: CSV, ZIP, TXT

The DWR Periodic Groundwater Levels dataset contains seasonal and long-term groundwater level measurements collected by the Department of Water Resour...

GSP Monitoring Data

  • Published by: California Department of Water Resources
  • Last updated: Wednesday, February 25, 2026
  • File types: CSV

The Groundwater Sustainability Plan (GSP) Monitoring dataset contains the monitoring sites and associated groundwater level, subsidence or streamflow ...

i03 Groundwater Sustainability Agencies

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

The passage of the Sustainable Groundwater Management Act (SGMA) in 2014 set forth a statewide framework to help protect groundwater resources over th...

Dry Well Reporting System Data

  • Published by: California Department of Water Resources
  • Last updated: Wednesday, February 25, 2026
  • File types: CSV

In California, water systems serving one (1) to 15 households are regulated at the county level. Counties vary in their practices, but rarely do count...