Incident Timeline

GLOSSARY of TERMS AND ACRONYMS

                                 GLOSSARY

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The following list of terms and acronyms may facilitate your reading of the events that have taken place at nuclear power plants on the Susquehanna River and elsewhere.

A Chronology of Incidents at TMI Unit-2: 2003-2008

       THREE MILE ISLAND Unit 2: 1979-2008

 

                1979

A Chronology of Incidents at TMI Unit-2: 1979-2003

1979

March 28, 1979, 4:00 a.m. - Beginning of the Three Mile Island (TMI) Unit-2 loss-of-coolant, core melt accident. The plant came within 30 minutes of a full meltdown. The reactor vessel was destroyed, and large amounts of unmonitored radiation was released directly into the community.

March 28, 1979, 4:30 p.m. - Press conference of Lt. Governor William Scranton:

Incident Chronology of Susquehanna Steam Electric Station, 2005-2008

 A chronology of events and incidents at the Susquehanna Steam Electric Station in Berwick, Pa. 

 

Jan. 20, 2005

 

 Susquehanna set plant record by generating 18-million MWH 

Incident Chronologies of Peach Bottom Atomic Power Station, 1992-2004

 A chronology of events and incidents at the Peach Bottom Atomic Power Station, Delta, Pa. 

To read documents, open PDFs:

 

 

Incident Chronology of Peach Bottom Atomic Power Station, 2005-2009

 A Chronology of events and incidents at Peach Bottom Atomic Power Station, Delta, Pa. 

Chronology of Incidents at Peach Bottom Atomic Power Station 1974-2004

 TMI Alert has chronicled safety and environmental incidents at Exelon's Peach Bottom Atomic Power Station in southern York County, Pa., since 1974. 

To view chronologies, open PDFs: 

 

Chronology of Incidents at Susquehanna Steam Electric Station

TMI Alert has chronicled safety and environmental incidents at PPL's Susquehanna Steam Electric Station near Berwick, Pa.

To view chronologies, open PDFs:

 

Chronology of Incidents at TMI Unit 1: 2004-2008

Below is a chronological account of safety incidents at the Three Mile Island nuclear power plant Unit 1 reactor on the Susquehanna River.

A Topical Summary of Problems at TMI Unit 1

Boric Acid Problems:

  • June 29, 1994; January 22, March 5, 1999, & August 29 to October 23, 1999; June 29, 1994; December 8, 2001; and, March 21, April 2 and August 13, 2002.

     

  • Borated Water Storage Tank: May 23, 1994, December 21, 1996; April 25, 1997; and, February 2, 2000.

(Also please refer to "Problems with the Reactor Vessel".)

 

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