An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Toxics Release Inventory (TRI) Program

TRI Basic Data Files: Calendar Years 1987-2019

EPA has been collecting Toxics Release Inventory (TRI) data since 1987. Each "Basic" data file accessible from this webpage contains the 100 most-requested data fields from the TRI Reporting Form R and Form A. The data in these files are presented in .csv (comma-separated value) format.

Quantities of dioxin and dioxin-like compounds are reported in grams, while all other chemicals are reported in pounds. For descriptions of each data element and other details about the contents and use of these files, see the TRI Basic Data File Documentation. The TRI Reporting Forms and Instructions document is also a helpful reference.

In each "Basic" data file, you'll find:

  • Facility name, address, latitude and longitude coordinates, and industry sector codes
  • Chemical identification and classification information
  • Quantities of chemicals released on site at the facility
  • Quantities of chemicals transferred to Publicly Owned Treatment Works (POTWs)
  • Quantities of chemicals transferred off site to other locations for release/disposal and further waste management
  • Quantities of chemicals managed through disposal, energy recovery, recycling and treatment; non-production-related waste quantities; production/activity ratio

Select a year from the options below, choose the desired file from the dropdown menu, and click "Go."


This webpage contains the most recent versions of all TRI data files; facilities may revise previous years' TRI submissions if necessary, and any such changes will be reflected in these files. For this reason, data contained in these files may differ from data used to construct the annual TRI National Analysis.