// Risk Intelligence
| Risk Score | 7 / 10 High |
| Facility Type | ☢ Nuclear Power Plant |
| Operator / Branch | Holtec International (decommissioning) |
| Host County | Plymouth County MA |
| Nearest City | Nationwide, US |
| Primary Risk Radius | 10 miles |
| Secondary Risk Radius | 50 miles |
// Strategic Significance
Pilgrim Nuclear Power Station in Plymouth Massachusetts closed in 2019 after 47 years of operation and is now undergoing decommissioning. Plymouth sits on Cape Cod Bay on the Massachusetts coast near the site of the Mayflower landing. The plant is undergoing accelerated decommissioning with Holtec International. The 50-mile ingestion zone encompasses much of southeastern Massachusetts including the Cape Cod peninsula.
// Civilian Impact Assessment
The greater Boston metropolitan area's southern suburbs fall within the 50-mile ingestion zone of Pilgrim Nuclear. Cape Cod Bay below the plant is a critical fishing and recreational area. The Cape Cod peninsula's summer population — which can exceed 500000 people — creates complex emergency management scenarios. Spent fuel storage will remain on site during the decades-long decommissioning process.
// Evacuation & Shelter Guidance
10-mile EPZ: Plymouth area residents evacuate via MA-3 or MA-44. Monitor Massachusetts Emergency Management Agency broadcasts. 50-mile zone: Greater Boston southern suburbs monitor MEMA guidance. Cape Cod Bay fish and recreation restrictions would apply. Cape Cod evacuation routes are limited creating potential bottlenecks during summer population surges.
// Recommended Preparedness Gear
Essential preparedness items for residents within the 10-mile risk zone of Pilgrim Nuclear Power Station MA.
72-Hour Emergency Food Kit View on Amazon → Water Filtration System View on Amazon → Portable Generator View on Amazon →* ThreatMap USA participates in the Amazon Associates Program.