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156 datasets

Juvenile Salmonid Collection System (JSCS) Pilot Project Fish and Environmental Data – McCloud River and Shasta Reservoir (2022–2025)

Published by: California Department of Water Resources
Last updated: Friday, April 10, 2026
File types: CSV, PDF

The California Department of Water Resources (DWR) conducted the Juvenile Salmonid Collection System (JSCS) Pilot Project from 2022 — 2025 to test new...

DWR Continuous Data Download Links

Published by: California Department of Water Resources
Last updated: Friday, April 10, 2026
File types: CSV

Stations and a table of download links for time-series data, from DWR's continuous environmental monitoring database. For more information, see DWR's...

Estuarine Ecosystems, California North Coast MPA Baseline Study, 2014 to 2016

Published by: California Ocean Protection Council
Last updated: Friday, April 3, 2026
File types: PDF, ZIP, CSV

The North Coast has 16 major estuaries that support a wide diversity of plant and animal life, including salmon and other commercially important speci...

Drinking Water - Public Water Systems Rates Information

Published by: California State Water Resources Control Board
Last updated: Tuesday, October 29, 2019
File types: CSV, PDF

Public Water Systems (PWS) submit their annual reports with rate information using the Electronic Annual Report (EAR) submission process on the Drinki...

Surface Water - Chemistry Results

Published by: California State Water Resources Control Board
Last updated: Wednesday, March 4, 2026
File types: PDF, ZIP, CSV

This data provides results from the [California Environmental Data Exchange Network](https://ceden.org/) (CEDEN) for field and lab chemistry analyses....

Water Quality Data

Published by: California Department of Water Resources
Last updated: Friday, April 10, 2026
File types: CSV

The California Department of Water Resources (DWR) discrete (vs. continuous) water quality datasets contains DWR-collected, current and historical, ch...

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...

Surface Water - Sampling Location Information

Published by: California State Water Resources Control Board
Last updated: Wednesday, March 4, 2026
File types: PDF, CSV

Information about sampling locations for data from the [California Environmental Data Exchange Network](https://ceden.org/) (CEDEN). This set of stati...

Significant Lands - Water Lines

Published by: California State Lands Commission
Last updated: Friday, April 10, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

The State Lands Commission has prepared the Significant Lands Inventory (report) for the California Legislature as a general identification and classi...

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...