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47 datasets

Los Angeles River Restoration and Access (LLARRA) Temperature Analysis - Lower Los Angeles River - 2024-2025

Published by: California Department of Fish and Wildlife
Last updated: Tuesday, September 1, 2026
File types: XLS, ZIP

WCB Grant 2023114: Lower Los Angeles River Restoration and Access: Data includes one (1) year of temperature analysis to inform the design and serve a...

Interagency Ecological Program: Drift invertebrate catch and water quality from the Sacramento River channel, and Sacramento River floodplain and tidal slough, collected by the Yolo Bypass Fish Monitoring Program, 1998-2019

Published by: California Department of Water Resources
Last updated: Tuesday, September 1, 2026
File types:

Largely supported by the Interagency Ecological Program (IEP), the California Department of Water Resources (DWR) has operated a fisheries and inverte...

Feather River Watershed Monitoring Study

Published by: California Department of Water Resources
Last updated: Wednesday, September 2, 2026
File types: PDF, CSV

The Feather River watershed serves as a source of water for the State Water Project (SWP), one of the nation’s largest water conveyance projects. The ...

Vegetation - Tijuana River [ds3033]

Published by: California Department of Fish and Wildlife
Last updated: Tuesday, September 1, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

In 2016, Debbie Waldecker from California State Parks (CSP) led a team in a strongly field-based update of the Western San Diego County Vegetation dat...

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...

Interagency Ecological Program: Discrete dissolved oxygen monitoring in the Stockton Deep Water Ship Channel, collected by the Environmental Monitoring Program, 1997-2018

Published by: California Department of Water Resources
Last updated: Tuesday, September 1, 2026
File types:

The Interagency Ecological Program’s (IEP) Environmental Monitoring Program (EMP) has historically monitored discrete water quality and nutrients in t...

National Hydrography Data - NHD and 3DHP

Published by: California Department of Water Resources
Last updated: Wednesday, September 2, 2026
File types: WEBSITE, ARCGIS GEOSERVICES REST API, PDF, ZIP, CSV

The USGS National Hydrography Dataset (NHD) downloadable data collection from The National Map (TNM) is a comprehensive set of digital spatial data th...

Sacramento River Geomorphic Atlas, Red Bluff to Colusa, California (1896–2012)

Published by: California Department of Water Resources
Last updated: Tuesday, September 1, 2026
File types: PDF

The Sacramento River Geomorphic Atlas (1896–2012) (SRGA) documents the geomorphology of the middle reach of the Sacramento River from Red Bluff to Col...

DSM2 Input 2025-09-18 historical update

Published by: California Department of Water Resources
Last updated: Tuesday, September 1, 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: ...

i12 Salinity Transects SouthDelta

Published by: California Department of Water Resources
Last updated: Tuesday, September 1, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This is a point feature class of high-frequency specific conductance and water temperature measurements at specific points in the South Delta. Specifi...