Category Archives: GE Mark I reactor

New problem at Fukushima: Groundwater leaking into contaminated plant and how to dispose of it

Posted on May 4, 2013 by

 The New York Times reported April 29: Two years after a triple meltdown that grew into the world’s second worst nuclear disaster, the Fukushima Daiichi nuclear power plant is faced with a new crisis: a flood of highly radioactive wastewater … Continue reading →

Posted in Fukushima, GE Mark I reactor, Meltdown, Plant shutdowns, Radiation leak | Tagged , , , , | Leave a comment

Event Reports: Reactor scrams in Louisiana, Alabama and Massachusetts, Fitness for Duty violations in Alabama and Illinois

Posted on May 24, 2012 by

Another busy week at the NRC Event Reports page: 1. Monday afternoon, Unit 1 at the River Bend nuclear power plant in Louisiana shut down automatically after low condensor vacuum resulted in a turbine trip. Following the scram, water level in … Continue reading →

Posted in Browns Ferry, Dresden, Event Reports, Fitness for Duty, GE Mark I reactor, Nuclear Regulatory Commission, Pilgrim, Plant shutdowns, Reactor problems, River Bend | Tagged , , , , , , , , , , , | Leave a comment

Event Reports: Fire at Mississippi nuke, a supervisor on drugs at Florida facility and an Arkansas TV station issues an inaccurate emergency alert

Posted on April 13, 2012 by

Here’s some items from today’s NRC Event Reports: 1. Yesterday evening, a fire broke out in ‘A’ Main Condensor at the Grand Gulf nuclear power plant in Mississippi. The on-site fire brigade was dispatched to fight the blaze and the … Continue reading →

Posted in Arkansas Nuclear, Drugs at work, Entergy, Event Reports, Fire, Fitness for Duty, GE Mark I reactor, Grand Gulf, Nuclear Regulatory Commission, Turkey Point | Tagged , , , , , , , , , , | 1 Comment

Event Reports: Fires in South Carolina and Florida, a lightning strike in Mississippi and a reactor shutdown in Illinois

Posted on April 4, 2012 by

It was a busy Tuesday on the Nuclear Regulatory Commission’s Event Reports page: 1. Yesterday morning, a fire broke was reported in the Plant Vital Battery Room for Unit 2 at the Catawba nuclear power plant in South Carolina. The fire broke … Continue reading →

Posted in Catawba, Event Reports, Fire, GE Mark I reactor, Grand Gulf, Hydrogen leak, Nuclear Regulatory Commission, Quad Cities, Turkey Point | Tagged , , , , , , | 1 Comment

New study: Radiation readings around Fukushima still dangerously high

Posted on February 26, 2012 by

The Japan Times reported yesterday: High levels of radiation, including a rate of 470 millisieverts per year at one location, have been detected in municipalities near the Fukushima No. 1 nuclear power plant, according to an interim Environment Ministry report. … Continue reading →

Posted in Evacuation plans, Fukushima, GE Mark I reactor, Japan, Meltdown, Radiation exposure, Radiation leak, Reactor problems | Tagged , , , | Leave a comment

Event Reports: Safety display systems out at Georgia nuke, manual reactor scram at Mississippi plant

Posted on February 21, 2012 by

A couple of items from today’s NRC Event Reports: 1. The Hatch nuclear power plant in Georgia reported to the NRC that a hard drive crash on Saturday had rendered inoperable both the Safety Parameter Display System (SPDS) and the Emergency … Continue reading →

Posted in Coolant leak, Event Reports, GE Mark I reactor, Grand Gulf, Hatch, Nuclear Regulatory Commission, Plant shutdowns, Reactor problems | Tagged , , , , , , , | 1 Comment

CNN to air story on older US nuclear reactors tonight

Posted on February 19, 2012 by

CNN will air an investigative report tonight on the 23 U.S. nuclear power plants that use the GE Mark I design, the type and age system that failed at Fukushima. (The picture above is of a 2007 cooling tower failure … Continue reading →

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Event Report: Alabama nuke might not be able to shut down in event of fire

Posted on February 9, 2012 by

Browns Ferry nuclear power plant told the NRC this morning that a recent review had cast doubts on the ability of the facility’s reactors to shut down in the event of a fire in a particular location. According to the … Continue reading →

Posted in Browns Ferry, Event Reports, GE Mark I reactor, Nuclear Regulatory Commission, Reactor problems, Tennessee Valley Authority | Tagged , , , , , , | Leave a comment

Pipes at damaged Fukushima reactor freeze, leak‏

Posted on January 30, 2012 by

The Japan Times reported today: Two more water leaks were found at the Fukushima No. 1 power plant Monday in addition to 14 found Sunday that prompted Tokyo Electric Power Co. to halt the cooling of reactor 4′s spent-fuel pool … Continue reading →

Posted in Coolant leak, Fukushima, GE Mark I reactor, Japan, Radiation leak, Reactor problems | Tagged , , , | Leave a comment

Event Report: Stuck valve knocks out safety system at New Jersey nuke

Posted on January 12, 2012 by

During maintenance testing yesterday, operators at the Hope Creek nuclear power plant in New Jersey discovered that the turbine governor valve for the Unit 1 reactor would not close, “rendering the speed and flow control system for the turbine inoperable.” … Continue reading →

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