The U.S. Department of Energy (DOE) Richland Operations Office declared an emergency at the Hanford Site at approximately 8:30 a.m. this morning after a cave-in of a 20-foot section of a tunnel that is hundreds of feet long that is used to store contaminated materials. The tunnel is located next to the Plutonium Uranium Extraction Facility, also known as PUREX, which is located in the center of the Hanford Site, in an area known as the 200 East Area. No contamination has been detected following the cave-in. Crews are continuing to survey the area for contamination. Workers are preparing to fill the hole created by the cave-in in order to stabilize the tunnel. All personnel in the vicinity of the PUREX facility were accounted for and there are no reports of injuries.
Actions taken to protect site employees include:
- As a precaution, workers in the vicinity of the PUREX facility as well as the Hanford Site north of the Wye Barricade (southern entrance to the site) were told to shelter in-place for a few hours. The shelter in place order was lifted in stages from noon to approximately 1:30, and employees were sent home early.
- Only personnel essential to minimum safe operations are reporting to work, and non-essential personnel for swing and graveyard shifts were told not to report for work tonight (May 9).
The public can request information regarding the event by calling (509) 376-8116. The media may call (509) 376-3322.
No action is currently required for residents of counties surrounding the Hanford Site.