Risk-Screening Environmental Indicators (RSEI) Model

Get EasyRSEI

EasyRSEI is one way to get RSEI results. RSEI results are also available on the RSEI results map and through other EPA websites. See the ways to get RSEI results page for more information.

EasyRSEI is an easy-to-use application that works with Microsoft Access to provide easy access to 28 years of results from EPA's Risk-Screening Environmental Indicators (RSEI) model. With EasyRSEI you can browse through preformatted tables and graphs, and also use the custom query functionality to select and export RSEI results for specific facilities, locations, chemicals and years. You do not need to know how to use Microsoft Access or have Microsoft Access installed on your computer to use EasyRSEI.

This version of EasyRSEI contains preformatted results from RSEI Version 2.3.5. Each new version of RSEI (and EasyRSEI) incorporates the latest Toxics Release Inventory (TRI) data, as well as changes to the input data and the methodology used to process the data and calculate the results.

You may separately download the supporting information, including the methodology, the toxicity spreadsheet, the pchem spreadsheet, and the technical appendices on the RSEI documentation and help page. EasyRSEI online help is also available.

Review how RSEI should be used.

On this page:

For more information on installing EasyRSEI, watch this short EasyRSEI installation video tutorial:


View a larger version of this video on EPA's YouTube channel Exit

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System requirements

  • Approximately 4 GB of free hard disk space
  • At least 2 GB of RAM

If you already have a previous version of EasyRSEI on your computer, you should delete those files before installing the new version. If you performed a full install of a previous version of EasyRSEI, you can use the "Uninstall EasyRSEI" option in your program menu. Otherwise, just delete the files.

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Download instructions for EasyRSEI zipped file

If you do not have administrative rights on your computer, but you have Microsoft Access 2010 or a later version of Microsoft Access installed, use this link:

 EasyRSEI Version 2.3.5 Files for Download(1 pg, 505 MB, 01/18/2017)

  • Click on the link above to download the zipped file.
  • Unzip the files to a local drive (not a network drive). Windows will allow you to open a file without unzipping it, but that will not allow EasyRSEI to work. You must click "Unzip" in the Winzip interface. Make sure that you have the "All files" option selected. Note that your Winzip applcation may look different than the screen below.

Screenshot showing the EasyRSEI Winzip interface

  • Whatever folder you select as your location in Winzip, the unzip will create the folder \easyrsei in that location, and place the files in the easyrsei folder.
  • Right-click on the file "EasyRSEI.accde" in the easyrsei folder and select "Create Shortcut." This will create a shortcut in that folder to open EasyRSEI. Copy the shortcut and paste it onto your desktop. Double-click on the icon on your desktop for easy access to the application.

Note: The above link works for 32-bit versions of Microsoft Access only. If you have a 64-bit version of Microsoft Access installed on your computer, use this link:

EasyRSEI Version 2.3.5 Files for Download for 64-bit Access(1 pg, 505 MB, 01/18/2017)

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Installation instructions for EasyRSEI full installation (admin rights required)

If you do have administrative rights to install a program on your computer, use the link below. You do not need to have Microsoft Access installed on your computer. If you do not have a compatible version of Microsoft Access, the Setup program will install a version of Microsoft Access Runtime, which will allow EasyRSEI to run. This setup will work for both 32-bit and 64-bit computers.

EasyRSEI Setup, Version 2.3.5(1 pg, 902 MB, 01/18/2017)

  • Double-click on EasyRSEI_Setup.exe in your browser once the file has downloaded.
  • Follow the prompts to complete the installation.

User Alert

Once you click on the downloaded setup file, there may be a lag of up to 30 seconds before the installation begins.

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What is new in RSEI Version 2.3.5

Each new version of RSEI incorporates the latest TRI data, as well as changes to the input data and the methodology used to process the data and present the results. The following changes were made in Version 2.3.5:

  • Includes TRI Reporting Years 1988-2015.
  • Toxicity weights have been updated with the most recent toxicity data.
  • Default, industry-level and facility-specific stack heights have been updated with 2011 data from the NEI.
  • Default and industry-level chromium speciation rates (the portion of total chromium released assumed to be hexavalent) have been updated with 2011 data from the NEI.
  • The stream network hydrography has been updated from Version 1 to Version 2 of NHDPlus.
  • Off-site transfers to incineration have been adjusted for potential double counting, beginning with reporting year 1998, when facilities in the commercial hazardous waste treatment sector were first required to report to TRI.

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