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IWFM Demand Calculator (IDC) Workshops
- Published by: California Department of Water Resources
- Last updated: Wednesday, February 4, 2026
- File types: ZIP
Materials for past training workshops for IDC. Each workshop material includes slides used during the workshop, complete and incomplete input data fil...
Watershed Boundary Dataset (WBD)
- Published by: California Department of Water Resources
- Last updated: Wednesday, February 4, 2026
- File types: FILE GEODATABASE OR SHAPEFILE, ARCGIS GEOSERVICES REST API, WEBSITE, PDF
The Watershed Boundary Dataset (WBD) from USGS' The National Map (TNM) defines the perimeter of drainage areas formed by the terrain and other landsca...
Natural Communities Commonly Associated with Groundwater
- Published by: California Department of Water Resources
- Last updated: Wednesday, February 4, 2026
- File types: GDB, SHP, PDF
The Natural Communities dataset is a compilation of 48 publicly available State and federal agency datasets that map vegetation, wetlands, springs, an...
San Francisco Bay and Sacramento-San Joaquin Delta DEM for Modeling, Version 4.2
- Published by: California Department of Water Resources
- Last updated: Wednesday, February 4, 2026
- File types: PNG, ZIP
# SUPERSEDED --> See version 4.3 https://data.cnra.ca.gov/dataset/san-francisco-bay-and-sacramento-san-joaquin-delta-dem-for-modeling-version-4-3 ...
San Francisco Bay and Sacramento-San Joaquin Delta DEM for Modeling, Version 4.3
- Published by: California Department of Water Resources
- Last updated: Wednesday, February 4, 2026
- 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...
Water Shortage Vulnerability Analysis Archive
- Published by: California Department of Water Resources
- Last updated: Wednesday, February 4, 2026
- File types: FILE GEODATABASE, ZIP, EXCEL (XLSX)
This page is meant to act as an archival repository for previous Water Shortage Vulnerability analyses, which includes the Water Shortage Vulnerabilit...
Water Shortage Vulnerability Technical Methods
- Published by: California Department of Water Resources
- Last updated: Wednesday, February 4, 2026
- File types: PDF
These documents present the 2023 and 2024 updates to the Water Shortage Vulnerability scoring for both (and separately) rural communities as domestic ...
Dayflow
- Published by: California Department of Water Resources
- Last updated: Wednesday, February 4, 2026
- File types: XLSX, PDF, CSV, DOCX
Dayflow is a computer program developed in 1978 as an accounting tool for determining historical Delta boundary hydrology. It presently provides the ...
Drinking Water - Public Water System Annually Reported Water Production and Delivery Information 2013-2022
- Published by: California State Water Resources Control Board
- Last updated: Wednesday, November 27, 2024
- File types: PDF, ZIP, CSV, XLSX
Amount of water produced by month and by source and the water delivered by type of use and by month for every Public Water System (PWS) reporting. Pub...
ECO-PTM Paper
- Published by: California Department of Water Resources
- Last updated: Wednesday, February 4, 2026
- File types: PDF
The Department of Water Resources Modeling Support Office, in collaboration with the United States Geological Survey (USGS), has developed an individu...