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100 datasets

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...

Vegetation - Yosemite [ds200]

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

The United States Geological Survey (USGS) and National Park Service (NPS) formed the USGS-NPS Vegetation Mapping Program in 1994 to map the vegetatio...

Hydrography Presentations

Published by: California Department of Water Resources
Last updated: Wednesday, July 22, 2026
File types: PDF, WEB VIDEOS

Slides, handouts, and recordings that have been presented at various conferences, workshops, and webinars by the California National Hydrography Stewa...

2019 California Water Quality Status Report

Published by: California State Water Resources Control Board
Last updated: Wednesday, October 23, 2019
File types: ZIP, XLSX, CSV, TXT

The California Water Quality Status Report is an annual data-driven snapshot of the Water Board’s water quality and ecosystem data. This third edition...

2025 Draft Updates of Data for CEC Busbar Mapping Assessment (2026-2027 IRP Cycle)

Published by: California Energy Commission
Last updated: Thursday, July 23, 2026
File types: HTML

During the August 19, 2025 Modeling Advisory Group webinar as part of the CPUC’s Assumptions for the 2026-2027 TPP, CEC staff proposed a number of upd...

CalVTP Treatable Landscapes App (Deprecated)

Published by: CAL FIRE
Last updated: Thursday, July 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

This web application provides a viewing platform for the California Vegetation Treatment Program (CalVTP) Programmatic Environmental Impact Report (P...

Winter Steelhead Range [ds699]

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

June 2012 Version Data Content: This data set contains all CalWater 2.2.1 Planning Watersheds (PWS) where CDFW has documented winter run steelhead to ...

Summer Steelhead Range [ds698]

Published by: California Department of Fish and Wildlife
Last updated: Wednesday, July 22, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

October 2009 Version Data Content: This data set contains all CalWater 2.2.1 Planning Watersheds (PWS) where CDFW has documented summer run steelhead ...

Terrestrial Intactness (Classified)

Published by: California Energy Commission
Last updated: Thursday, July 23, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

This category of planning priorities in the CEC 2023 Land-Use Screens provides an estimate of terrestrial landscape condition based on the extent to w...

Toxicity Criteria Database

Published by: California Office of Environmental Health Hazard Assessment
Last updated: Tuesday, December 30, 2025
File types: CSV, PDF

Toxicity data for Air (Acute and Chronic Reference Exposure Levels (RELs)), Water (Public Health Goals (PHGs)), Soils (California Human Health Screeni...