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Friday, June 03, 2005

Incinerator restart 'significantly closer'

By HAL MCCUNE of the East Oregonian
hmccune@eastoregonian.com


HERMISTON — An intensive review by a rocket task force organized by the Army has moved the Umatilla Chemical Agent Disposal Facility “significantly closer” to resuming incineration operations, the administrator of the state’s chemical demilitarization program said this morning.

The facility likely will be able to resume processing rockets within a few days, said Dennis Murphey of the state Department of Environmental Quality.

The rocket task force was organized after the DEQ issued a stop-work order May 18, following the third rocket fire in six weeks at the Umatilla Chemical Depot.

In a preliminary report from one arm of the task force, the Corps of Engineers, a review of the structure of the Explosive Containment Room where the fires occurred showed its “structural integrity,” including its ability to contain an explosion, is not compromised by repeated incidents such as the rocket fires.

Those fires involved inadvertent ignition of propellant remaining in the rockets as they were being cut up for incineration, resulting in a low-order explosion and fire.

The review also concluded that the “performance and integrity” of the duct system, blast valves, isolation valves and filters associated with the room remained intact during the incidents.

The fires have an insignificant impact because “the design, construction and protection of the ECRs makes the risk of a room, building or heating, venting, air conditioning fire very low.”

Consequently, an increased frequency of fires in the containment room would not put the public at increased risk during continued disposal of M55 rockets.

No workers were injured or threatened during the fires and there was no danger of a chemical agent release.

A preliminary assessment also indicated that the rockets remain stable in storage and through the routine handling operations that bring them to the disposal process, the U.S. Army Chemical Materials Agency reported.

At this point, all fires have been associated only with rockets involved in the actual shearing/disposal process. Murphey met Thursday in Portland with representatives of the Army and senior officials of the Washington Group, which operates the incinerator facility, to review the progress of the task force.

“Hopefully we’re getting significantly closer” to resuming operations, he said this morning. He characterized the meeting as a “good discussion” that lasted a couple hours and provided an opportunity to review “what their response has been, actions already taken and still under way.”

The Army and Washington Group also have provided the DEQ with a significant amount of documents the state had requested regarding the fires and their investigation, he said.

Murphey said the review since the shutdown has focused on three areas: the safety of the facility in case of future fires, the investigation into the cause of the fires and identification of actions already taken or under consideration to reduce the frequency of the fires or mitigate their consequences.

The task force also has been investigating two similar fires at Pine Bluff Chemical Agent Disposal Facility in Arkansas. Other disposal sites have had rocket fires, but the frequency of the recent fires, in proportion to the number of rockets destroyed, alarmed the Army and DEQ.