CalEnviroScreen is a mapping tool that helps identify California communities that are most affected by many sources of pollution, and where people are often especially vulnerable to pollution’s effects. CalEnviroScreen uses environmental, health, and socioeconomic information to produce scores for every census tract in the state. The scores are mapped so that different communities can be compared. An area with a high score is one that experiences a much higher pollution burden than areas with low scores. CalEnviroScreen ranks communities based on data that are available from state and federal government sources.

CalEnviroScreen 4.0 was released in October 2021 as part of continued efforts by the CalEPA’s Office of Environmental Health Hazard Assessment to map cumulative impacts of environmental health conditions across California. For more information on CalEnviroScreen, please visit our website or see our report.

The CalEnviroScreen 4.0 Data Dashboard is an interactive online tool used for filtering and visualizing the latest CalEnviroScreen data. This tool enables users to select areas of interest based on various geographies, CalEnviroScreen scores, percentile ranges or thresholds for any combination of the 21 CalEnviroScreen indicators. It can also select areas by ethnic or racial makeup. Users can view data summaries and maps that update automatically as different filters are selected and applied. All the results are downloadable as a spreadsheet.

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 of the report is organized around the watershed from land to sea. Each theme-specific story includes a brief background, a data analysis summary, an overview of management actions, and access to the raw data.

View the 2019 California Water Quality Status Report.

• Data for Fig. 2 1,2,3,-Trichloropropane is provided as a download below. The data can also be downloaded from the State Water Resources Control Board (SWRCB) website.
• Data for Fig. 6 Statewide Water Bodies Toxicity can be downloaded from the California Open Data Portal.
• Sediment load data for Fig. 7 Elk River is provided as a download below. Landslide susceptibility data is available on the California Geological Survey GIS server.
• Data for Fig. 8 Central Valley Water Board E. coli Monitoring Results can be downloaded from Google Sheets.
• Data for Fig. 9 Harmful Algal Bloom Incident Reports Map can be downloaded from the California Open Data Portal.
• Data for Fig. 19 Industrial Stormwater Assessment Tool can be downloaded from the California Open Data Portal (Monitoring Data, Facility Information), Office of Environmental Health Hazard Assessment CalEnviroScreen 3.0 webpage, and the SWRCB 2012 Integrated Report webpage.
• Data for Fig. 20 is provided as a download below and is also available on the Stream Quality Index dashboard. Download the file from the dashboard for the most current data.

This tool was created by BCDC to support the agency's Environmental Justice and Social Equity Bay Plan amendments. You can read more about that here. Before using this tool, please review the Community Engagement Best Practices Guide (BARHII 2021).This map contains two datasets: Community Vulnerability categorizes Social and Contamination vulnerability by census block groups using inputs from the American Community Survey (2014-2018) and CalEnviroScreen 3.0. Community Based Organization (CBO) Directory shows the results of a CBO survey and BCDC research to allow users to discover CBOs working in proximity to a shoreline planning, development, or adaptation area of interest to facilitate partnership and engagement. See more details below: Community VulnerabilityBCDC's updated Community Vulnerability layer with the latest American Community Survey data is reflected in the Community Vulnerability (2020) layer and replaces the 2018 version previously available. This map includes two datasets that represent social and contamination vulnerability of census block groups around the region. The mapping is based on methodology developed by the Adapting To Rising Tides program and utilizes data from the US Census American Community Survey and CalEnviroScreen 3.0. You can read more about mapping methods here. Community Based Organization Directory To develop this Directory, BCDC reached out to CBOs and encouraged them to contribute their information via a short survey created in ArcGIS Survey123. Organizations shared their voice by including contact information, mission and values, communities served, stewardship/service areas and additional stories. For organizations who had not filled out the survey, but also work in the region, BCDC added publicly available information including their organization name, contact information, and approximate service area populated through web research. All organizations were notified that elements of the survey results would be shared in a publicly available online tool and were given the opportunity to opt out if they did not want to be included. Additional CBOs are welcome to complete the survey to share their community story. If you would like assistance completing the survey, notice outdated or erroneous information, or would like your organization removed from the tool, please reach out to GIS@bcdc.ca.gov. Additional resources include the BCDC Environmental Justice and Social Equity Bay Plan Policies, Community Vulnerability Mapping Methods, and Data Download.