What Is the Mile Island
The Mile Island refers to the Three Mile Island facility, a pressurized water reactor located on an island in the Susquehanna River near Harrisburg, Pennsylvania. The site became widely known for its role in the history of commercial nuclear power in the United States.
Key Events and Operational History
In March 1979, Unit 2 at Three Mile Island experienced a partial core meltdown following a combination of equipment failures and human error. The incident led to the most significant regulatory changes in U.S. nuclear history, including stricter operator training, improved emergency planning, and enhanced oversight by the Nuclear Regulatory Commission.
Relevance and Current Status
Today, the site is primarily associated with decommissioning activities and long-term waste storage. The remaining Unit 1 continued operating until September 2019, when its owner announced the plant would close due to economic factors. For detailed information on the plant’s history and decommissioning timeline, visit the NRC fact sheet.
