April 3, 1996
Preliminary Notice of Violation issued to Battelle related to the Delayed Response to a Criticality Safety Alarm at the Pacific Northwest National Laboratory
This refers to the Department of Energy's (DOE) investigation of the circumstances surrounding a seven month delay in responding to a high level alarm for a criticality safe slab tank in the [specified building’s] laboratory vacuum system. The DOE Office of Enforcement and Investigation initiated its investigation on November 27, 1995, after an Occurrence Report issued on October 11, 1995 identified collectively significant related occurrences in the [building’s] laboratory vacuum system. These included, among others, the fact that an engineered safety feature for criticality prevention had been in a high level alarm condition for seven months.