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Energy boss: Nuclear dump reopens, but work remains

The official reopening Monday of the nation’s only underground nuclear waste repository nearly three years after a radiation leak marks a key step toward cleaning up a decadeslong legacy of bomb-making and research, but the U.S. energy secretary said more needs to be done before a backlog of contaminated material starts heading to the New Mexico desert again.

The radiation release halted work at the Waste Isolation Pilot Plant and derailed a multibillion-dollar cleanup program, raising questions about oversight across the U.S. nuclear weapons complex and causing waste to build up at sites around the country.

Ernest Moniz

Ernest Moniz

Energy Secretary Ernest Moniz told The Associated Press that sweeping changes have been made to improve safety, and that hard work by employees and technological advancements over the past three years should bolster public confidence in cleanup efforts following the 2014 leak.

“We are very, very excited about getting at least a resumption of operations,” he said during an interview late Sunday. “I do want to caution we will not be at full speed yet for a few years.”

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Moniz, Gov. Susana Martinez, members of the state’s congressional delegation and others gathered Monday to formally mark the reopening of the site in southern New Mexico.

Officials shut down the repository in February 2014 after a chemical reaction inside a drum of inappropriately packed waste caused the lid to burst, contaminating some disposal vaults, corridors and air shafts.

Moniz acknowledged that the closure caused a backlog of waste at sites, including northern New Mexico’s Los Alamos National Laboratory, the birthplace of the atomic bomb, and the Savannah River Site in South Carolina, where the basic materials used to fabricate nuclear weapons were produced.

The secretary is hopeful shipments can resume later this year, but work to move the waste underground takes more time now because of the extra clothing, respirators and heavy monitoring devices that workers must wear to protect against the contamination. Limited ventilation also slows the work.

While no schedule has been finalized, officials expect the repository will be accepting about five shipments a week later this year.

The radiation leak also triggered intense state and federal investigations that revealed mismanagement, lax oversight and a failure to follow existing policies.

New Mexico cited the Waste Isolation Pilot Plant and Los Alamos lab – where the drum was packed – for numerous permit violations, while federal investigators detailed a list of corrective actions. Negotiations eventually led to the largest settlement ever between the Energy Department and a state.

“Bottom line: We moved quickly to hold the federal government accountable,” Gov. Martinez said in a statement.

Energy boss: Nuke dump reopens but work remains


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