Division of Energy Employees Occupational Illness Compensation (DEEOIC)

The Site Exposure Matrices (SEM) website has been updated! This update makes the website current through May 16, 2017. New information is now available for 22 DOE sites including the Nevada Test Site, Rocky Flats Plant, and the Idaho National Laboratory.

DOL received twenty-one (21) public submittals since the last update on November 16, 2016. Information submitted this way was used to update the Oak Ridge Gaseous Diffusion Plant profile and the Y-12 Plant profile. Information provided by the DOL District Offices was used to update SEM data for four DOE sites. Noteworthy during this period, the Nevada Test Site information in SEM increased by over 34 percent. For the first time, Closure profiles were developed and added to SEM for the Rocky Flats Plant. Such profiles will be developed for other DOE sites in the coming months to provide information about the toxic substances used by workers involved with decommissioning, decontamination, demolition and other Closure-related activities.

Since the SEM first became available to the public on March 2010, there have been thirteen revisions of the SEM website. Prior to the release of a new version, the US Department of Energy (DOE) reviews the new and revised information to ensure that no classification issues exist. If necessary, changes are made. For this most recent version, no changes were required (awaiting verification from DOE on this).

*Click here to access the SEM website

Posted July 12, 2017