NRC CAL – NOV (White)

On March 26, 2013, the NRC issued a Notice of Violation to Northern States Power Company, Minnesota for a violation of 10 CFR 50.54, "Conditions of Licenses," and risk significant planning standards 10 CFR 50.47(b)(4) and (b)(8) associated with a White Significance Determination Process finding. The finding involved the failure to recognize that the 1R-50 shield building high range vent gas radiation detector at Prairie Island Nuclear Generating Plant (Prairie Island) was a single piece of equipment necessary for emergency preparedness action levels and failure to recognize its importance to the emergency preparedness program. Specifically, from July 24, 2011, to May 18, 2012, the 1R-50 high range detector was inoperable, which degraded Prairie Island's ability on Unit 1 to classify and declare general emergencies or site area emergencies. Prairie Island did not take timely corrective actions to restore the monitor, which is a piece of equipment necessary to support the emergency preparedness program.