Latest Events


Austria, 14 Mar 2015, INES: 1

Found category 4 source, shutter of the source container partly open

On 14th March 2015 Italian border control detected increased radiation levels at an Austrian railcar at the Austrian border station. The railcar transported scrap metal. Austrian radiation experts found a Cs-137 category 4 source with 2.5 GBq activity. The shutter of the source container was partly...
Reported by Federal Ministry of Agriculture, Forestry, Environment and Water Management of Austria on 24 Apr 2015 Last update on 24 Apr 2015


Japan, 22 Feb 2015, INES: n/a

Possible Flow of Contaminated Water to the Outside of the Controlled Area

Monitoring instruments (Lines A and B) at the side gutter drainage sounded a “High” alarm at 10:00, followed by an ‘Extremely High’ alarm at 10:10 on 22 February, 2015. Peak values were 5.63 kBq/L at 10:30 for Line A, and 7.23 kBq/L at 10:40 for Line B. The “High” alarm was set at 1.5 kBq/L, and...
Reported by Nuclear Regulation Authority of Japan on 16 Apr 2015 Last update on 16 Apr 2015


Japan, 17 Dec 2014, INES: n/a

Leakage of Water Treated by the Multi-Nuclide Removal Facility (ALPS)

On 17 December 2014, TEPCO found that treated water being transferred to the J6 Tank Area was leaking from an open end of a branch pipe connected to the main pipe. While having an open end, the valve on the branch pipe was open. Closing the valve on the branch pipe stopped the leakage. The...
Reported by Nuclear Regulation Authority of Japan on 16 Apr 2015 Last update on 16 Apr 2015


Japan, 17 Sep 2014, INES: n/a

Discovery of a Crack in a Connection Valve between Tanks for Concentrated Water Treated by Reverse Osmosis

On 4 September, 2014, TEPCO found that the concentrated water* treated by Reverse Osmosis (RO) was leaking from a connection valve between A5 tank and A6 tank in the G4 South Tank Area. The leaked water was remaining within the dike surrounding the area. The radioactivities of the leaked water...
Reported by Nuclear Regulation Authority of Japan on 16 Apr 2015 Last update on 16 Apr 2015


Japan, 02 Jun 2014, INES: n/a

Leakage of Contaminated Water from Two Notch Tanks

On 2 June, 2014, NRA’s resident inspector found that contaminated water was leaking from the bolt portion of the two tanks in 4,000 tons notch tank group in the contaminated water tank area. The water leakage was stopped by means of lowering the water level of the leaking tank by transferring the...
Reported by Nuclear Regulation Authority of Japan on 16 Apr 2015 Last update on 16 Apr 2015


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