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TREATED WATER PORTAL SITE

TEPCO is prioritizing safety while steadily moving forward with each and every task needed to decommission the Fukushima Daiichi Nuclear Power Station and reduce risks as we aim to "balance recovery with decommissioning." We are making every effort to convey accurate information about initiatives pertaining to ALPS treated water, etc. which is part of the decommissioning process, so as to obtain the understanding of society as a whole.

What is ALPS Treated Water?
Attention: Open Call for Tritium Separation Technology

information

2023.7.7

Certificate of Completion Received for the Pre-Use Inspections of ALPS Treated Water Dilution/Discharge Facility and Related Facilities at the Fukushima Daiichi Nuclear Power Station
Please click here for details

2023.7.6

IAEA Director General Rafael Mariano Grossi’s visit to the Fukushima Daiichi Nuclear Power Station (2023.7.5)
Please click here for details

2023.7.4

Release of Comprehensive Report on the International Atomic Energy Agency’s safety review of the ALPS Treated Water
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Click here for a list of announcements
What TEPCO would like to convey regarding ALPS treated water
The Handling ALPS Treated Water
Sea Area Monitoring
About Tritium
Marine Organisms Rearing Test
Measurement/confirmationFacility Conditions(analysis results)
Q&A
Current ALPS Treated Water, etc. Conditions
ALPS Treated Water, etc. strage
Links/data
The Handling ALPS Treated Water
About Tritium
Sea Area Monitoring
Marine Organisms Rearing Test
Measurement/confirmationFacility Conditions(analysis results)
Q&A
Current ALPS Treated Water, etc. Conditions
ALPS Treated Water, etc. strage
Links/data

What is ALPS Treated Water?

  • 1. Water treated with multi-nuclide removal equipment (ALPS) so that the concentrations of radioactive materials other than tritium sufficiently satisfy regulatory standards for safety (sum of the ratios to regulatory concentration limits excluding tritium, is less than 1) shall be referred to as, “ALPS treated water.”

  • 2. Water that has been purified with multi-nuclide removal equipment (ALPS), but for which the concentrations of radioactive materials do not meet regulatory standards for safety (sum of the ratios to regulatory concentration limits excluding tritium, is 1 or higher) shall be referred to as, "Treated water to be re-purified."

  • 3. The term “ALPS treated water, etc.” shall be used when referring to both types of water defined in 1. and 2. above.

Attention: Open Call for Tritium Separation Technology

In relation to the open call for “Technology to separate Tritium from Water Treated with Multi-Nuclide Removal Equipment (ALPS)”, it was reported that there was acts such as demanding money based on a false information that their proposal has been adopted.
TEPCO Group Companies, Mitsubishi Research Institute (MRI), a third party organization, and the relevant ministries will NOT demand for any money related to this open call.