A company Official at Northwest Pipeline has revealed that the natural gas explosion that occurred on March 31 at their Plymouth plant in Washington was caused by a rupture on the gas vessel. This information was revealed by the vice president of the company Ed Brewer during a meeting.
Before the gas is liquefied, it is stored in a vessel that removes the carbon dioxide. The rupture of the vessel was caused by shrapnel that made a gash in the storage tank.
The explosion resulted in the injury of five persons and a forced evacuation. Questions were raised during the meeting about the effectiveness of the evacuation procedure. One suggestion was offered to install a warning siren.
Initial reports from the Benton County Sheriff stated that a small amount of gas leaked from tank and evaporated into the atmosphere.