The Umatilla Chemical Depot (UMCD) was one of nine Army installations in the United States that stored chemical weapons. The chemical weapons originally stored at the depot consisted of various munitions and ton containers containing GB or VX nerve agents or HD blister agent. Stockpile disposal operations were successfully concluded using high-temperature incineration technology. This technology has been used by the Army for more than two decades, safely at several sites to successfully dispose of more than 80 percent of the nation’s original chemical weapons. The Army worked to safeguard the local community, and protect the environment, as we stored and disposed of these chemical weapons. Valley began work on the Chemical Warfare Agent Disposal Facility in Umatilla, OR in 1998, taking over the remaining electrical work on the Chemical Incinerator.