June 10, 1977 Waterford, Connecticut, hydrogen gas explosion

February 20, 1996 Waterford, Connecticut, US Leaking valve forces shutdown Millstone Nuclear Power Plant Units 1 and 2, multiple equipment failures found 0 ?1

June 10, 1977 Waterford, Connecticut, USA Hydrogen gas explosion damages three buildings and forces shutdown of Millstone-1 Boiling Water Reactor 0 15