// Risk Intelligence
| Risk Score | 7 / 10 High |
| Facility Type | ☢ Nuclear Power Plant |
| Operator / Branch | Dominion Energy |
| Host County | New London County CT |
| Nearest City | Washington DC |
| Primary Risk Radius | 10 miles |
| Secondary Risk Radius | 50 miles |
// Strategic Significance
Millstone Nuclear Power Station on Long Island Sound in southeastern Connecticut operates two reactors and is Connecticut's only nuclear plant providing approximately 50% of the state's electricity. The plant sits on a rocky peninsula on the Sound with direct Atlantic storm exposure. Its 50-mile zone encompasses portions of Rhode Island and reaches into the greater Boston area.
// Civilian Impact Assessment
The 50-mile ingestion zone from Millstone extends across southeastern Connecticut into Rhode Island including Providence and northward toward the Boston area. Long Island Sound below the plant is a major commercial fishing and shellfish harvesting area. Connecticut's reliance on Millstone for half its electricity means any extended shutdown would have major power grid implications.
// Evacuation & Shelter Guidance
10-mile EPZ: Evacuate via CT-156 or US-1. Monitor Connecticut Division of Emergency Management broadcasts. 50-mile zone: Providence RI and southeast Connecticut residents monitor CTDEMHS and RI EMA guidance. Long Island Sound shellfish and fish consumption restrictions would apply immediately.
// Recommended Preparedness Gear
Essential preparedness items for residents within the 10-mile risk zone of Millstone Nuclear Power Station CT.
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.