Water
Themes include well water, water quality, wastewater, watershed, storm water, drinking water.Popular datasets
Well Completion Reports
Drinking Water - SAFER Dashboard Failing and At-Risk Drinking Water Systems
Surface Water - Indicator Bacteria Results
Search Water datasets
484 datasets
i16 Census Tract EconomicallyDistressedAreas 2023
- Published by: California Department of Water Resources
- Last updated: Thursday, October 9, 2025
- File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML
The IRWM web based EDA mapping tool uses this GIS layer. Created by joining ACS 2019-2023 5 year estimates to the 2020 Census Tract feature class. The...
Methodology for Flow and Salinity Estimates in the Sacramento-San Joaquin Delta and Suisun Marsh
- Published by: California Department of Water Resources
- Last updated: Thursday, October 9, 2025
- File types: PDF
Annual report submitted by the DWR's Delta Modeling Section...
South Delta Studies Reference
- Published by: California Department of Water Resources
- Last updated: Thursday, October 9, 2025
- File types: ZIP, PDF, WMV, HTML
Studies done in the South Delta by various agencies...
WRIMS GUI
- Published by: California Department of Water Resources
- Last updated: Thursday, October 9, 2025
- File types: ZIP, DOCX, PDF, JAR, DLL, LOG, BAT, APPLICATION/X-MSDOS-PROGRAM
WRIMS GUI related software package and documents...
1D Subsidence Modeling Files for the Central Valley
- Published by: California Department of Water Resources
- Last updated: Thursday, October 9, 2025
- File types: PDF
Model files and technical memorandum for one-dimensional subsidence models that are discussed in DWR's DRAFT subsidence best management practices (BMP...
California Aqueduct Subsidence Study
- Published by: California Department of Water Resources
- Last updated: Thursday, October 9, 2025
- File types: PDF, XLSX
California Aqueduct Subsidence Study. San Luis Field Division, and San Joaquin Field Division...
DSM2 Input 2025-07-03 historical update
- Published by: California Department of Water Resources
- Last updated: Thursday, October 9, 2025
- File types: ZIP
DSM2 Version "DSM2 Input 2025-07-03 historical update" is based on "DSM2 Input 2025-05-28", and includes the following improvements: * Corrections ...
National Hydrography Data - NHD and 3DHP
- Published by: California Department of Water Resources
- Last updated: Thursday, October 9, 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...
Environmental Monitoring Program: Discrete Water Quality Data
- Published by: California Department of Water Resources
- Last updated: Thursday, October 9, 2025
- File types: CSV, PDF
The Interagency Ecological Program’s (IEP) Environmental Monitoring Program (EMP) was initiated in compliance with the Water Right Decision D-1379 (no...
California's Groundwater Semi-Annual Conditions Updates
- Published by: California Department of Water Resources
- Last updated: Thursday, October 9, 2025
- File types: PDF
Semi-annual Conditions Updates are more frequent supplements to the comprehensive 5-year CalGW Updates, and also provide additional perspective on the...