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1472 datasets

Fire Hazard Severity Zone Viewer

Published by: CAL FIRE
Last updated: Monday, May 18, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

Pursuant to Public Resource Code 4202, The State Fire Marshal shall classify lands within State Responsibility Areas into fire hazard severity zones. ...

i16 Census Tract DisadvantagedCommunities 2023

Published by: California Department of Water Resources
Last updated: Monday, May 18, 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...

i16 Census Tract EconomicallyDistressedAreas 2023

Published by: California Department of Water Resources
Last updated: Monday, May 18, 2026
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...

Urban Water Management Plans (UWMP) 2015

Published by: California Department of Water Resources
Last updated: Monday, May 18, 2026
File types: PDF, CSV

Urban Water Management Plans (UWMPs) are prepared by California's urban water suppliers to support their long-term resource planning, and ensure adequ...

California Important Farmland: 1984-2022

Published by: California Department of Conservation
Last updated: Monday, May 18, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

Established in 1982, Government Code Section 65570 mandates FMMP to biennially report on the conversion of farmland and grazing land, and to provide m...

California Important Farmland: Most Recent

Published by: California Department of Conservation
Last updated: Monday, May 18, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This dataset may be a mix of two years and is updated as the data is released for each county. For example, one county may have data from 2014 while a...

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...

Surface Water - Flow Targets for Southern California Streams

Published by: California State Water Resources Control Board
Last updated: Wednesday, October 23, 2019
File types: CSV, PDF, ARCGIS

Changes to instream flow are known to be one of the major factors that affect the health of biological communities. Flow alteration can degrade physic...

State Water Project Routine Water Quality Monitoring

Published by: California Department of Water Resources
Last updated: Monday, May 18, 2026
File types: CSV, LINK, PDF

The California State Water Project (SWP) is one of the nation’s largest water conveyance projects. Its geographic extent stretches from Sierra Nevada ...

DSM2 Input 2025-09-18 historical update

Published by: California Department of Water Resources
Last updated: Monday, May 18, 2026
File types: ZIP, HTML

Version "DSM2 Input 2025-09-18 historical update" is based on version "DSM2 Input 2025-07-03 historical update", and includes the following changes: ...