Pilgrim Nuclear Power Station (PNPS) is located on the western shore of Cape Cod Bay in the town of Plymouth, Massachusetts. Power operations ceased at Pilgrim on May 31, 2019, and the fuel was permanently removed from the reactor vessel and placed in the spent fuel pool on June 9, 2019.

PNPS is also the site of the generally licensed Pilgrim Independent Spent Fuel Storage Installation (ISFSI). The PNPS and the Pilgrim ISFSI are owned by Holtec International, and the licensed decommissioning operator is Holtec Decommissioning International, LLC (HDI). HDI estimates that it will complete radiological decommissioning and release all portions of the site for unrestricted use except for the Pilgrim ISFSI by September 2027 (resulting in a “partial site release”).

TSSD worked with HDI at Pilgrim from 2022 to 2024 during which time we provided professional services including radiation protection, chemistry, Final Status Survey and site closure support.