RSEI Data Dictionary

This set of tables describes all of the data tables and fields used in EPA's Risk-Screening Environmental Indicators (RSEI) model and results data sets. Each table listed below comes with information about where it can be found (e.g., in EasyRSEI, or in the Geographic Microdata).

Note that many of these tables link to other tables using keys like FacilityNumber, ChemicalNumber, and ReleaseNumber. The key values change with each version of RSEI, so you must use the same RSEI version for all tables, including the Geographic Microdata. The only exceptions are the Census crosswalks, population data tables, and the RSEI Grid shapefiles, which do not change with each RSEI version (however, they do change occasionally, so you should use the most recent version of each). This RSEI version is v.2.3.12 (TRI reporting year 2022). For zip files containing the data tables for older versions, please see the RSEI file transfer protocol (ftp) site. Note that for the Geographic Microdata, "Other Geographies" includes Census block groups, Census tracts, and zone improvement plan (ZIP) code files.

Additional information can be found in the RSEI methodology document and in the Geographic Microdata documentation.