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693 datasets

Fish Consumption Advisory Serving Recommendations

Published by: California Office of Environmental Health Hazard Assessment
Last updated: Friday, March 6, 2026
File types: PDF, CSV

Summary of fish advisories that recommend how often you can safely eat fish caught from water bodies in California based on the level of chemical cont...

i03 SystemwidePA 20101007

Published by: California Department of Water Resources
Last updated: Sunday, May 24, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This feature class represents the Systemwide Planning Area. It is one of the three Central Valley Flood Protection Plan (CVFPP) Planning Areas. It is ...

DSM2 Input 2025-07-03 historical update

Published by: California Department of Water Resources
Last updated: Sunday, May 24, 2026
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 ...

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...

DWR's Basin Characterization Program

Published by: California Department of Water Resources
Last updated: Sunday, May 24, 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:/...

IWFM Demand Calculator (IDC) - Version 2015.0.68

Published by: California Department of Water Resources
Last updated: Sunday, May 24, 2026
File types: PDF, ZIP

IDC (IWFM Demand Calculator) - Version 2015.0.68 (released April 23, 2018)...

IWFM Demand Calculator (IDC) - Version 2015.0.77

Published by: California Department of Water Resources
Last updated: Saturday, May 23, 2026
File types: PDF, ZIP

IDC (IWFM Demand Calculator) - Version 2015.0.77 (released March 20, 2019)...

Refuge Delivery Points - Central Valley Project Improvement Act [ds2638]

Published by: California Department of Fish and Wildlife
Last updated: Saturday, May 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Data was compiled to provide a singular visual representation of delivery points used to complete water deliveries to CVPIA wetland habitat area. The ...

i03 Local Maintenance Areas Flood Protection

Published by: California Department of Water Resources
Last updated: Sunday, May 24, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Boundaries of various types of public agencies with responsibilities that include in part or primarily flood control, system maintenance, and improvem...

i16 Census Tract DisadvantagedCommunities 2023

Published by: California Department of Water Resources
Last updated: Sunday, May 24, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The IRWM web based DAC mapping tool uses this GIS layer. Created by joining ACS 2019-2023 5 year estimates to the 2020 Census Tracts feature class. Th...