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Top > News > Press Releases > Publication of the IAEA Report on the review of
Handling ALPS Treated Water at TEPCO’s Fukushima Daiichi Nuclear Power Station


PRESS RELEASES


PUBLICATION OF THE IAEA REPORT ON THE REVIEW OF HANDLING ALPS TREATED WATER AT
TEPCO’S FUKUSHIMA DAIICHI NUCLEAR POWER STATION

July 18, 2024
Japanese
 1. On July 18, 2024, the IAEA published a report on its second review mission
    conducted in April 2024 after the start of the discharge of the ALPS treated
    water from TEPCO’s Fukushima Daiichi Nuclear Power Station (FDNPS) into the
    sea.
 2. This IAEA review is based on the Terms of Reference (TOR) on reviews of
    safety aspects of handling the ALPS treated water signed in July 2021 with
    the IAEA.
 3. This International safety standards. Therefore, the IAEA can reaffirm the
    fundamental conclusions of its AEA report includes the following major
    conclusions;
    1. The Task Force did not identify anything that is inconsistent with the
       requirements in the relevant safety review as outlined in the 4 July 2023
       Comprehensive Report.
    2. The Task Force confirmed that the equipment and facilities are installed
       and operated in a manner that is consistent with the Implementation Plan
       and the relevant international safety standards.
 4. The independent review by the IAEA, an international organization with
    authority in the field of nuclear energy, is extremely important in ensuring
    reliability and transparency regarding the safety of the discharge of the
    ALPS treated water into the sea and fostering better understanding both
    domestically and internationally. The Government of Japan will continue to
    work firmly to gain further understanding of the ALPS treated water from
    both domestically and internationally.

(Reference1) ALPS treated water

The ALPS treated water is water which is processed by devices such as ALPS
(Advanced Liquid Processing System) to ensure that the concentration of the
radioactive materials other than tritium surely meet the regulatory standards
for safety. In addition, the ALPS treated water is sufficiently diluted by
seawater before the discharges into the sea so that radioactive materials
including tritium is far below the regulatory standards for safety.

(Reference2) Composition of IAEA Task Force

The IAEA Task Force includes 11 international experts, serving in an independent
position, from Argentina, Australia, Canada, China, France, Republic of Korea,
the Marshall Islands, Russia, the United Kingdom, the United States, and
Vietnam.

(Reference3) Related links
 1.  Japan’s ALPS Treated Water Release Continues to Meet International Safety
     Standards, IAEA Task Force Confirms in New Report
 2.  Report on the Mission to Japan conducted in April 2024 (PDF)
 3.  The 1st report (PDF)
     published on April 29th, 2022, describes the details of IAEA’s review
     mission to METI and TEPCO conducted in February 2022, related to eight
     different technical areas, including the characterization of discharge and
     source term, the safety-related aspects of system and processes for
     controlling discharges, and the radiological environmental impact
     assessment.
 4.  The 2nd report (PDF)
     published on June 16th, 2022, describes the details of IAEA’s review
     mission to the Nuclear Regulation Authority conducted in March 2022,
     related to five technical topics, including the responsibilities and
     functions of the government, major principles and safety objectives, and
     authorization process.
 5.  The 3rd report (PDF)
     published on December 29, 2022, describes the IAEA’s planned activities for
     the analysis and data corroboration of source monitoring of the ALPS
     treated water, environmental monitoring, and occupational radiation
     protection for workers at the FDNPS.
 6.  The 4rd report (PDF)
     published on April 5, 2023, describes the details of IAEA’s review mission
     to METI and TEPCO conducted in November 2022, related to eight different
     technical areas, including the characterization of discharge and source
     term, the safety-related aspects of system and processes for controlling
     discharges, and the radiological environmental impact assessment.
 7.  The 5th report (PDF)
     published on May 4, 2023, describes the details of IAEA’s review mission to
     the Nuclear Regulation Authority conducted in January 2023, related to the
     five technical topics, including the responsibilities and function of the
     government, major principles and safety objectives, and authorization
     process.
 8.  The report “First Interlaboratory Comparison on the Determination of
     Radionuclides in ALPS Treated Water” (PDF)
     published on 31May, 2023, summarizes the results of an interlaboratory
     comparison (ILC) on the determination of radionuclides in ALPS treated
     water conducted under the IAEA’s safety review.
 9.  The report “IAEA Comprehensive Report on the Safety Review of the
     ALPS-Treated Water at the Fukushima Daiichi Nuclear Power Station” (PDF)
     published on July 4, 2023, summarizes a series of review which was
     conducted by the IAEA before the start of the discharge of ALPS treated
     water.
 10. The report “ First Review Mission to Japan after the Start of ALPS Treated
     Water Discharge (October 2023)” (PDF)
     published on 30 January, 2024, summarizes the results of first review which
     was conducted by the IAEA after the start of the discharge of the ALPS
     treated water.

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RELATED LINKS

 * The safety of the discharge of ALPS treated water

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