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274 datasets

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...

Surface Water - Aquatic Organism Tissue Sample Results

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

This data set provides results of tissue from organisms found in surface waters, from the [California Environmental Data Exchange Network](https://ced...

National Hydrography Data - NHD and 3DHP

  • Published by: California Department of Water Resources
  • Last updated: Wednesday, June 10, 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...

DWR Airborne Electromagnetic (AEM) Surveys Data

  • Published by: California Department of Water Resources
  • Last updated: Wednesday, June 10, 2026
  • File types: PDF, AGOL, ZIP, FILE GEODATABASE OR SHAPEFILE, SHP

#Statewide AEM Surveys Project Overview The Department of Water Resources’ (DWR’s) Statewide Airborne Electromagnetic (AEM) Surveys Project is funded...