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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

Current Status of Fukushima Daiichi NPS

Videos: Fukushima Today 2019

Cooperation with IAEA

IAEA review mission

The follow-up review mission (April 2, 2020)

General Conference 2020 – Side event -

ALPS treated Water Issue

“ALPS treated water” (this term is not equivalent to “contaminated water” also mentioned) is being continuously treated and stored in tanks.

ALPS treated Water Q&A

Here, we will answer the questions of ALPS-treated water.
If you have questions, please check the answer!

“Treated water” and “contaminated water”
Q1: What is “treated water”?
Q2: What is “contaminated water”?

<Handling of the treated water>
Q3: Why is disposal of ALPS treated water needed?
Q4: Why are two options suggested by the expert committee feasible?
Q5: Is it possible to store or discharge treated water outside of Fukushima Daiichi NPS (FDNPS)?
Q6: Is it possible to store in intermediate storage facilities?
Q7: What are the steps toward the handling of treated water?

<Characteristics of the treated water>
Q8: What is tritium?
Q9: Can tritium be removed?
Q10: Does the treated water contain radioactive materials other than tritium?

<Radiation impact of the treated water>
Q11: How much is the radiation impact of treated water release?
Q12: What regulatory standards are applicable to the discharge from Fukushima Daiichi NPS (FDNPS)?

<Countermeasures for possible reputational damage>
Q13: What kind of countermeasures will be taken for possible reputational damage?

※For more detailed information, please check the following material.

Team for Contaminated Water and Decommissioning Issues

The Subcommittee on Handling ALPS Treated Water (Japanese)

Tritiated Water Task Force (2013-2016)

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

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

Progress Status of Fukushima Daiichi NPS (monthly)

ANRE Special Contents – article on Fukushima Daiichi NPS-

Other Information

Division in Charge

Nuclear Accident Response Office, Electricity and Gas Industry Department, Agency for Natural Resources and Energy

Last updated:2020-11-20