The Defense Nuclear Facilities Safety Board was in Los Alamos last month to meet with NNSA and lab officials and tour transuranic waste operations at Area G and review seismic upgrades the Plutonium Facility.
In a memorandum dated Aug. 19, addressed to technical director T.J. Dwyer, a number of infractions were uncovered.
At the Plutonium facility, a criticality safety infraction was declared. Nuclear criticality safety is dedicated to the prevention of accidents resulting from an inadvertent, self-sustaining nuclear chain reaction.