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92 datasets

Interagency Ecological Program: Fish catch and water quality data from the Sacramento River floodplain and tidal slough, collected by the Yolo Bypass Fish Monitoring Program, 1998-2023.

Published by: California Department of Water Resources
Last updated: Sunday, April 12, 2026
File types:

Largely supported by the Interagency Ecological Program (IEP), California Department of Water Resources (DWR) has operated a fish monitoring program i...

Hospitalization Counts and Rates of Selected Adverse Hospital Events by California County

Published by: Department of Health Care Access and Information
Last updated: Monday, April 13, 2026
File types: CSV, PDF, ZIP

(See Note below regarding 2015 data). The dataset contains hospitalization counts and rates (age 18+), statewide and by county, for 7 potentially-pre...

Food Affordability

Published by: California Department of Public Health
Last updated: Sunday, April 12, 2026
File types: PDF, XLSX, ZIP

This table contains data on the average cost of a market basket of nutritious food items relative to income for female-headed households with children...

Health Care Personnel Influenza Vaccination

Published by: California Department of Public Health
Last updated: Sunday, April 12, 2026
File types: XLSX, CSV, ZIP

Health and Safety Code section 1288.7(a) requires California acute care hospitals to offer influenza vaccine free of charge to all healthcare provider...

CalEnviroScreen 3.0 Results

Published by: California Office of Environmental Health Hazard Assessment
Last updated: Wednesday, October 23, 2019
File types: PDF, CSV, SHP

CalEnviroScreen is a mapping tool that helps identify California communities that are most affected by many sources of pollution, and where people are...

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...

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...

Drinking Water - SAFER Dashboard Failing and At-Risk Drinking Water Systems

Published by: California State Water Resources Control Board
Last updated: Sunday, April 12, 2026
File types: PDF, EXCEL (XLSX), CSV

The Division of Drinking Water (DDW) identifies Failing and At-Risk community water systems and K-12 non-transient, non-community schools. This inform...

Rates of Selected Hospital Procedures Examined for Over or Under-Use by County

Published by: Department of Health Care Access and Information
Last updated: Monday, April 13, 2026
File types: CSV, PDF, ZIP

(See Note below regarding 2015 data). The dataset contains hospitalization counts and rates, statewide and by county, for 4 medical procedures for whi...

Housing Cost Burden

Published by: California Department of Public Health
Last updated: Sunday, April 12, 2026
File types: PDF, XLSX, ZIP

This table contains data on the percent of households paying more than 30% (or 50%) of monthly household income towards housing costs for California, ...