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Mid-and-Long-Term Roadmap towards the Decommissioning of TEPCO's Fukushima Daiichi Nuclear Power Station Units 1-4
- What's New
- Special Page explaining ALPS Treated Water
- Current Status of Fukushima Daiichi NPS
- Cooperation with IAEA
- Countermeasures to Manage Contaminated Water
- Environmental Monitoring
- Efforts made for decommissioning
- Progress Status of Fukushima Daiichi NPS (monthly)
- ANRE Special Contents – article on Fukushima Daiichi NPS
- Other Information
- Related Links
What's New
- February 25, 2020
- Monthly progress (January 28, 2021) (PDF 4,708KB)
- January 28, 2021
- Monthly progress(PDF 4,438KB)
- January 28, 2021
- A special page explaining ALPS treated water has been established.
- December 18, 2020
- Monthly progress (November 26, 2020)(PDF 4,235KB)
- December 15, 2020
- Status of countries and regions introduced import measures on Japanese food after the TEPCO’s Fukushima Daiichi Nuclear Power Station accident
- November 20, 2020
- Monthly progress (October 29, 2020)(PDF 4,485KB)
Special Page explaining ALPS Treated Water

Current Status of Fukushima Daiichi NPS
- Summary of Fukushima Daiichi NPS(PDF:2,382KB)
- Monthly progress (including seawater monitoring, fuel removal etc.) (PDF:4,780KB)
- milestone of suppressing contaminated water generated within 2020 has been achieved.
- Unit 3 Fuel removal steadily continues.
- COVID-19 infectious disease countermeasures enhanced to stably sustain decommissioning
- Brochure: Important stories on Decommissioning Fukushima Daiichi Nuclear Power Station. Now and in the future 2019(PDF:12,854KB)
- Outline of the 5th Revision: “the Mid-and-Long term Roadmap” (December 27, 2019) (PDF:1,014KB)
- The 5th Revision: “the Mid-and-Long term Roadmap” (December 27, 2019)(PDF:1,160KB)
Videos: Fukushima Today 2019
Cooperation with IAEA
- IAEA Director General Sees Progress in Fukushima Decommissioning Work
- Japanese Prime Minister Abe Highlights Important Role of IAEA in Talks with Director General Grossi
- IAEA’s evaluation on “Events and highlights on the progress related to recovery operations at Fukushima Daiichi NPS”
- Report in the discharge record and the seawater monitoring results at Fukushima Daiichi NPS
IAEA review mission
The follow-up review mission (April 2, 2020)
- Final report of the follow-up review mission(PDF:293KB)
- (Japanese ver.) Final report of the follow-up review mission(PDF:795KB)
General Conference 2020 – Side event -
- Opening and Introduction (NDF) (PDF:4,451KB)
- Current Status of the Decommissioning Project in FDNPS (TEPCO) (PDF:2,513KB)
- Reflections on Decommissioning in the UK and Japan(NDA) (PDF:904KB)
- Environmental Remediation in Off-site of FDNPS (MOE)(PDF:2,972KB)
- The Latest Mid/Long-term Roadmap with Updated Issues on Treated Water (METI) (PDF:2,953KB)
- Overview of IAEA assistances to Japan related to both on-site and off-site issues (IAEA) (PDF:1,237KB)
Countermeasures to Manage Contaminated Water
Water for cooling fuel debris touches that debris, and thereby becomes highly contaminated water containing highly concentrated radioactive materials.
New contaminated water is generated due to mixing of this highly contaminated water with groundwater and rainwater that flow into buildings.

Environmental Monitoring

- Observation data, Fukushima Daiichi NPS (TEPCO)
- Monitoring information of environmental radioactivity levels (NRA)
- Radiation levels in the prefecture (Fukushima Prefecture)
Efforts made for decommissioning
What is decommissioning of the Fukushima Daiichi Nuclear Power Station?
Efforts are focused primarily on the following 4 types of work.

Decommissioning will be carried out safely and steadily over 30 to 40 years

Current situation at each unit

Detailed analysis results regarding the water quality of the groundwater being pumped out for by-passing and by sub-drains at Fukushima Daiichi NPS
- Water quality of the pumped up groundwater and sub-drains (February 2021)(PDF:221KB)
- Water quality of the pumped up groundwater and sub-drains (January 2021)(PDF:225KB)
- Water quality of the pumped up groundwater and sub-drains (December 2020)(PDF:233KB)
- Water quality of the pumped up groundwater and sub-drains (November 2020)(PDF:238KB)
Progress Status of Fukushima Daiichi NPS (monthly)
ANRE Special Contents – article on Fukushima Daiichi NPS-
- The challenge of retrieving “fuel debris” Article No.3: The frontier of technological development (February 28, 2020)
- The challenge of retrieving “fuel debris” Article No.2: What obstacles will we face? (February 21, 2020)
- The challenge of retrieving “fuel debris” Article No.1: What is fuel debris? (February 14, 2020)
- Fight against contaminated water: The generation of contaminated water steadily reduced to about one-third (August 8, 2019)
Other Information
- Response to the Joint Communication from four UN Special Rapporteurs from the Government of Japan concerning ALPS-treated water at the TEPCO’s Fukushima Daiichi Nuclear Power Station (June 12, 2020)
- Video report: FY2019 Decommissioning and Contaminated Water Management at Fukushima Daiichi NPS (METI/TEPCO) (February 25, 2020)
- Answer to a Note Verbale From the Ministry of Foreign Affairs of the Republic of Korea on 19th August (August 27, 2019)
- Decommissioning, Reconstruction, Rehabilitation, and Food Safety: Rebuilding Post‑Accident Confidence, OECD NEA (March 26, 2019)
- Mid-and-Long-Term Roadmap archives
Related Links
- TEPCO: Tokyo Electric Power Company
- TEPCO:TREATED WATER POTAL SITE
- NDF: Nuclear Damage Compensation and Decomissioning Facilitation Corporation
- NRA: Nuclear Regulation Authority
- MAFF: Ministry of Agriculture, Forestry and Fisheries
- Fukushima Prefecture: Food monitoring site
- IRID: International Research Institute for Nuclear Decommissioning
- JAEA: Japan Atomic Energy Agency
- IAEA: Fukushima Daiichi Status Updates
Division in Charge
Nuclear Accident Response Office, Electricity and Gas Industry Department, Agency for Natural Resources and Energy
Last updated:2021-02-25