UMATILLA, Or-- For the second time this year the Umatilla Chemical Weapons Depot is hiring more security guards.

The depot is hiring more guards because they are about to start another mission. They need more security while they dispose of a mustard chemical agent. About four million pounds of the chemical is stored there in large steel containers.

Before they start this campaign they need to get approval from the Oregon Department of Environmental Quality.

Salaries for security range between $24k to $40k. Guards will patrol the depot and protect the military chemicals. Leaders at the depot say it's an opportunity for veterans coming out of the service to continue using some of their skills.

"It's a foot in the door if they would like to continue federal employment when the depot is finished with the mission of getting rid of the chemical weapons," said Jim Hackett, Public Affairs Office.

Those who want to apply must be a U.S. citizen, pass a background check and medical exams. The depot is accepting applications until June 15.