NEWS — LOCAL

Monday, December 22, 2003

Depot crew neutralizes Sarin leak

HERMISTON — The third reading in two weeks of GB Sarin chemical agent vapor detected outside of an Umatilla Chemical Depot storage igloo was reported Saturday.

Depot officials stressed that there were no injuries and no danger to the public or environment.

A chemical operations crew found a puddle of liquid GB Sarin chemical agent inside a storage igloo used to store 750-pound bombs shortly after noon Saturday, according to a Depot news release.

One of the 750-pound bombs was isolated as the source of the leak. The bomb was placed inside a large container within the structure, and the puddle of agent was decontaminated.

The same structure was the scene of the two outside detections of GB Sarin on Dec. 8 and Dec. 17, according to Depot officials.

As with the other incidents, the leak Saturday was confined to the Depot’s nerve agent storage area. Those are the only igloos that still contain weapons on the Depot.

The Depot crisis management team was assembled at the depot operations center Saturday and the Depot notified emergency operations centers in Umatilla and Morrow counties, Benton County in Washington and the Confederated Tribes of the Umatilla Indian Reservation.

So-called “leakers,” chemical weapons detected to be leaking vapor, are not unusual at the Umatilla Chemical Depot. Many of the weapons are 60 years old and the munitions are deteriorating. But all the weapons are housed in protective bunkers that are monitored regularly, and until the past two weeks all the leaks have been contained in the igloos.

The Umatilla Chemical Depot stores about 12 percent of the nation’s chemical weapons supply. An incineration complex has been completed there and is undergoing testing. Incineration is expected to begin next year.