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350 datasets

Surface Water - Benthic Macroinvertebrate Results

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

Data collected for marine benthic infauna, freshwater benthic macroinvertebrate (BMI), algae, bacteria and diatom taxonomic analyses, from the [Califo...

Environmental Monitoring Program: Discrete Water Quality Data

  • Published by: California Department of Water Resources
  • Last updated: Tuesday, April 7, 2026
  • File types: CSV, PDF

The Interagency Ecological Program’s (IEP) Environmental Monitoring Program (EMP) was initiated in compliance with the Water Right Decision D-1379 (no...

Surface Water - Fecal Indicator Bacteria Monitoring Results

  • Published by: California State Water Resources Control Board
  • Last updated: Tuesday, April 7, 2026
  • File types: CSV, PDF

This dataset contains fecal indicator bacteria (FIB) monitoring results collected from surface waters across California. It includes results for _Esch...

Surface Water - Aquatic Organism Tissue Sample Results

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

This data set provides results of tissue from organisms found in surface waters, from the [California Environmental Data Exchange Network](https://ced...

Drinking Water - Open Environmental Data Project - March 23, 2023 Workshop

  • Published by: California State Water Resources Control Board
  • Last updated: Monday, November 10, 2025
  • File types: PDF, HTML, CSV, SHP, ZIP, PPTX

The following datasets related to regulated drinking water system facilities in California have been developed and are available for the purpose of th...

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

  • Published by: California Department of Fish and Wildlife
  • Last updated: Tuesday, April 7, 2026
  • File types: XLS, ZIP

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

i07 WellReportStatsBySection

  • Published by: California Department of Water Resources
  • Last updated: Tuesday, April 7, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This feature class represents an index of records from the California Department of Water Resources' (DWR) Online System for Well Completion Reports (...

Sustainable Groundwater Management Act (SGMA) Water Year Type Dataset

  • Published by: California Department of Water Resources
  • Last updated: Tuesday, April 7, 2026
  • File types: CSV, PDF

The following dataset has been developed to assist the Groundwater Sustainability Agencies (GSAs) in their water budget development per the Groundwate...

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...

i07 Water Shortage Social Vulnerability BlockGroups

  • Published by: California Department of Water Resources
  • Last updated: Tuesday, April 7, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This dataset represents a water shortage social vulnerability analysis performed by DWR using Census 2021 block groups as the unit of analysis. This f...