Yesterday, the Nuclear Regulatory Commission (NRC) posted an event notification for Pilgrim Nuclear Power Station regarding the failure of two “check valves” in its “High Pressure Coolant Injection” (HPCI) steam exhaust line. These valve failures resulted in a pathway being created for radioactivity to get outside primary containment if an accident were to occur.

Pilgrim, due to shut down permanently in 2019, powered down last month for its last refueling. The 45-year old plant is having these valve malfunctions even before it has come back online.

Pilgrim is already placed in Column 4 by the NRC, ranking it as one of the two worst operating plants in the county. Decommissioning and cleanup should not be delayed – the NRC should not allow Pilgrim to restart.

Today, the Union of Concerned Scientists (UCS) published a “backgrounder” document on this latest problem reported at Pilgrim. Read USC’s Backgrounder for a better understanding of what went wrong →