Share This!
 
Nuclear Power Information Tracker MapList Definitions About This Feature

U.S. Nuclear Reactors

Reactor:
Three Mile Island Unit 1
Location:

Londonderry Township, Pennsylvania
Local population: 263,701 (10-mile radius)

Type:

Pressurized Water Reactor

Status:

Operating
Licensed to operate from 04/19/74-04/19/34

Owner:

AmerGen Energy Company

Safety Issues:

Flooding Hazard, Groundwater Leaks Reported, Heightened NRC Attention, Year Plus Outages


Google map copyright

Related Links & Documents

12/07/2006   UCS questioned NRC Region I about an inaccurate report AmerGen made to the NRC about a stuck open relief valve during an event when no relief valve, in fact, stuck open. Download the pdf

09/18/2006   UCS documented the factors leading to the year-plus reactor outage that began in February 1979 and was extended by the partial meltdown on Unit 2 in this case study for our Walking a Nuclear Tightrope report. 
See details | Download the pdf (1.5 kb)

06/07/2006   UCS thanked AmerGen for providing us with a briefing and tour of post 9/11 security upgrades implemented at Three Mile Island. Download the pdf

07/29/2005   UCS provided TMI Alert the results from the solicited review of the corrective action program at Three Mile Island. Download the pdf

06/17/2005   UCS raised policy concerns to the NRC Commissioners related to "slime" found in the containment sump of the Three Mile Island Unit 2 reactor following its 1979 accident. Download the pdf