// Risk Intelligence
| Risk Score | 7 / 10 High |
| Facility Type | ☢ Nuclear Power Plant |
| Operator / Branch | Constellation Energy |
| Host County | Wayne County NY |
| Nearest City | Washington DC |
| Primary Risk Radius | 10 miles |
| Secondary Risk Radius | 50 miles |
// Strategic Significance
Ginna Nuclear Power Plant on Lake Ontario east of Rochester is the smallest commercial nuclear reactor in the United States by generating capacity. It is also one of the oldest operating plants having begun commercial operation in 1970. Despite its small size its location on Lake Ontario means any release would affect Great Lakes drinking water. Rochester falls within the 50-mile ingestion zone.
// Civilian Impact Assessment
Rochester New York is within the 50-mile ingestion zone of Ginna Nuclear. Lake Ontario below the plant supplies drinking water to Rochester and other communities. The Great Lakes ecosystem means Lake Ontario contamination would affect water quality across the connected lake system downstream through the St. Lawrence River to the Atlantic Ocean.
// Evacuation & Shelter Guidance
10-mile EPZ: Evacuate via NY-104 east toward Rochester. Monitor NYSEMO broadcasts. 50-mile zone: Rochester area residents monitor NYSEMO guidance. Lake Ontario fish and drinking water restrictions would apply. Avoid Lake Ontario recreational activities during any release alert.
// Recommended Preparedness Gear
Essential preparedness items for residents within the 10-mile risk zone of Ginna Nuclear Power Plant NY.
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.