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20 datasets

Groundwater Basin Boundary Descriptions - Central Coast Region (3-XXX Basins)

  • Published by: California Department of Water Resources
  • Last updated: Friday, October 3, 2025
  • File types: PDF

This dataset includes the official groundwater basin boundary descriptions for California's 515 groundwater basins. To make locating descriptions easi...

San Francisco Bay and Sacramento-San Joaquin Delta DEM for Modeling Version 4 (superseded)

  • Published by: California Department of Water Resources
  • Last updated: Friday, October 3, 2025
  • File types: BIN, ZIP, PNG

#Superseded https://data.cnra.ca.gov/dataset/san-francisco-bay-and-sacramento-san-joaquin-delta-dem-for-modeling-version-4-1## A more recent version ...

San Francisco Bay and Sacramento-San Joaquin Delta DEM for Modeling, Version 4.3

  • Published by: California Department of Water Resources
  • Last updated: Friday, October 3, 2025
  • File types: PNG, .ZIP, ZIP

# Citation and Main Description: This product is described in Chapter 5 of the 2018 DWR Delta Modeling Section annual report, produced jointly with...

National Hydrography Data - NHD and 3DHP

  • Published by: California Department of Water Resources
  • Last updated: Friday, October 3, 2025
  • 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...

Estimated Subsidence in the San Joaquin Valley between 1949 – 2005

  • Published by: California Department of Water Resources
  • Last updated: Friday, October 3, 2025
  • File types: PDF

San Joaquin Valley Subsidence Analysis README. Written: Joel Dudas, 3/12/2017. Amended: Ben Brezing, 4/2/2019. DWR’s Division of Engineering Geodet...

DWR Airborne Electromagnetic (AEM) Surveys Data

  • Published by: California Department of Water Resources
  • Last updated: Friday, October 3, 2025
  • File types: PDF, AGOL, BIN, 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...

DWR's Basin Characterization Program

  • Published by: California Department of Water Resources
  • Last updated: Friday, October 3, 2025
  • File types: BIN, .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:/...

Surface Water - Water Quality Regulated Facility Information

  • Published by: California State Water Resources Control Board
  • Last updated: Tuesday, September 30, 2025
  • File types: CSV, XLSX, PDF

Information regarding site visits of facilities that discharge wastewater, from the [California Integrated Water Quality System](https://www.waterboar...

CalEnviroScreen 2.0

  • Published by: California Office of Environmental Health Hazard Assessment
  • Last updated: Wednesday, October 23, 2019
  • File types: CSV, XLSX, PDF

The Office of Environmental Health Hazard Assessment (OEHHA), on behalf of the California Environmental Protection Agency (CalEPA), developed Californ...

CalEnviroScreen 3.0 Results

  • Published by: California Office of Environmental Health Hazard Assessment
  • Last updated: Wednesday, October 23, 2019
  • File types: PDF, CSV, SHP

CalEnviroScreen is a mapping tool that helps identify California communities that are most affected by many sources of pollution, and where people are...