Category Archives: Coolant leak

Update on Peach Bottom feedwater issue: NRC approves increase in maximum power after next refueling outage

The NRC’s timing couldn’t be worse. As I told you earlier today, the Peach Bottom nuclear power plant in Pennsylvania reported that the Emergency Service Water system that provides cooling water in the event of an accident was inoperable. The … Continue reading

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Event Report: Peach Bottom gets NRC approval to continue operating, despite leak in safety system

The Peach Bottom nuclear power plant in Pennsylvania reported that both trains of the Emergency Service Water (ESW) system were inoperable “due to a pin-hole, through wall piping leak.” The leak was discovered Saturday afternoon, and affects the safety of … Continue reading

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Duke Energy admits that plant operators “didn’t take all possible precautions” to prevent leak that shut down South Carolina nuke

South Carolina’s Morning News Online reported today: Site operators didn’t take all possible precautions to prevent a radioactive water leak that led to shutdown of a South Carolina nuclear reactor, officials with Duke Energy said Thursday, also saying they’d learn … Continue reading

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Event Report: Maryland nuke leaking coolant, forced to limit output

According to an Event Report filed yesterday with the Nuclear Regulatory Commission, operators at the Calvert Cliffs nuclear power plant were forced to reduce output from the Unit 1 reactor due to the discovery Thursday night of a pressure boundary … Continue reading

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New cooling system leak affecting the spent fuel pool at Fukushima reactor 5

The Asahi Shimbun reported today: A leak of radioactive water was found in the piping of water used to cool the spent fuel pool in the undamaged No. 5 reactor building of the Fukushima No. 1 nuclear power plant, its … Continue reading

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French nuclear reactor shuts down following two small fires; Subsequent investigation reveals on-going reactor coolant leak

The Wall Street Journal reported earier today: French state-controlled utility Electricité de France SA said late Thursday that a leak was detected at one of its nuclear reactors in northwestern France, after two small fires were extinguished at the site … Continue reading

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Update: TEPCO tests find fatal levels of radiation, almost no water in Unit 2 reactor

Central Florida News carried an Associated Press story today on the latest from Fukushima Daiichi Unit 2: A new probe at Japan’s crippled nuclear power plant has found fatal radiation levels and hardly any cooling water inside one of the … Continue reading

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Water level continues to fall at Fukushima reactor

The Japan Times reported today: The water cooling the core of the crippled Fukushima power plant’s No. 2 reactor is only 60 cm deep, Tokyo Electric Power Co. said Monday, all but confirming experts’ fears that the unit is breached … Continue reading

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Event Reports: A reactor trip in New Jersey, bad welds and an earthquake in Virginia and continued Fitness for Duty problem at nuke construction site in Georgia

Four items from today’s NRC Event Reports: 1. On Friday afternoon, the Unit 2 reactor at the Salem nuclear power plant in New Jersey experienced an automatic reactor trip. During the incident, two reactor coolant pumps were unavailable, due to a pair … Continue reading

Posted in Coolant leak, Earthquake, Event Reports, Expansion, Fitness for Duty, North Anna, Nuclear Regulatory Commission, Plant shutdowns, Reactor problems, Salem, Southern Co., Vogtle | Tagged , , , , , , , , , , , | 2 Comments

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

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