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2024.6.4ALPS treated water dilution/discharge facility
Completion of the Second Discharge of ALPS Treated Water in FY2024
Click here for details2024.5.30TEPCO Holdings’ action on the handling of ALPS treated water
ALPS treated water status update
Click here for details2024.5.17TEPCO Holdings’ action on the handling of ALPS treated water
Commencement of the discharge of ALPS treated water into the sea (second discharge in FY2024)
Click here for details2024.5.15ALPS treated water dilution/discharge facility
Analysis Results of ALPS Treated Water Sampled from the Measurement/Confirmation Facility Tank Group A and the Scheduled Date of the Commencement of the Second Discharge in FY2024
Click here for details2024.5.7ALPS treated water dilution/discharge facility
Completion of the First Discharge of ALPS Treated Water in FY2024
Click here for details2024.4.25TEPCO Holdings’ action on the handling of ALPS treated water
ALPS treated water status update
Click here for details2024.4.19TEPCO Holdings’ action on the handling of ALPS treated water
Commencement of the discharge of ALPS treated water into the sea (first discharge in FY2024)
Click here for details2024.4.17ALPS treated water dilution/discharge facility
Analysis Results of ALPS Treated Water Sampled from the Measurement/Confirmation Facility Tank Group C
Click here for details2024.3.28TEPCO Holdings’ action on the handling of ALPS treated water
ALPS Treated Water Discharge Status Update
Click here for details2024.3.18ALPS treated water dilution/discharge facility
Completion of the Discharge from Measurement/Confirmation Facility Tank Group B (Fourth Discharge)
Click here for details2024.2.29TEPCO Holdings’ action on the handling of ALPS treated water
ALPS Treated Water Discharge Status Update
Click here for details2024.2.28TEPCO Holdings’ action on the handling of ALPS treated water
Commencement of the fourth discharge for FY2023
Click here for details2024.2.26ALPS treated water dilution/discharge facility
Analysis Results of ALPS Treated Water Sampled from the Measurement/Confirmation Facility Tank Group B
Click here for details2024.1.25Marine organisms rearing test
Status of Progress of the Marine Organisms Rearing Test
Click here for details2024.1.25TEPCO Holdings’ action on the handling of ALPS treated water
ALPS Treated Water Discharge Status Update
Click here for details2023.12.25Sea area monitoring
Revision of future monitoring plan for quick tritium measurement
Click here for details2023.12.21Marine organisms rearing test
Status of Progress of the Marine Organisms Rearing Test
Click here for details2023.12.21TEPCO Holdings’ action on the handling of ALPS treated water
ALPS Treated Water Discharge Status Update
Click here for details2023.11.30Marine organisms rearing test
Status of Progress of the Marine Organisms Rearing Test
Click here for details2023.11.30TEPCO Holdings’ action on the handling of ALPS treated water
ALPS Treated Water Discharge Status Update
Click here for details2023.11.20ALPS treated water dilution/discharge facility
Completion of the Discharge from Measurement/Confirmation Facility Tank Group A (Third Discharge)
Click here for details2023.11.2TEPCO Holdings’ action on the handling of ALPS treated water
Commencement of the Second Stage of the third discharge for FY2023
Click here for details2023.11.1TEPCO Holdings’ action on the handling of ALPS treated water
Analysis Results for the Water Stored in the Discharge Vertical Shaft (Upper-stream Storage) as Part of the First Stage of the Third Discharge in FY2023
Click here for details2023.10.31TEPCO Holdings’ action on the handling of ALPS treated water
Commencement of the First Stage of the third discharge for FY2023
Click here for details2023.10.30TEPCO Holdings’ action on the handling of ALPS treated water
Facility inspection results and preparations for the First Stage of the third discharge of FY2023
Click here for details2023.10.26Marine organisms rearing test
Status of Progress of the Marine Organisms Rearing
Click here for details2023.10.26TEPCO Holdings’ action on the handling of ALPS treated water
ALPS Treated Water Discharge Status Update
Click here for details2023.10.23ALPS treated water dilution/discharge facility
Completion of the Discharge from Measurement/Confirmation Facility Tank Group C (Second Discharge)
Click here for details2023.10.19ALPS treated water dilution/discharge facility
Analysis Results of ALPS Treated Water Sampled from the Measurement/Confirmation Facility Tank Group A
Click here for details2023.10.5TEPCO Holdings’ action on the handling of ALPS treated water
Commencement of the Second Stage of the second discharge for FY2023
Click here for details2023.10.4TEPCO Holdings’ action on the handling of ALPS treated water
Analysis Results for the Water Stored in the Discharge Vertical Shaft (Upper-stream Storage) as Part of the First Stage of the Second Discharge in FY2023
Click here for details2023.10.3TEPCO Holdings’ action on the handling of ALPS treated water
Commencement of the First Stage of the second discharge for FY2023
Click here for details2023.9.28Marine organisms rearing test
Status of Progress of the Marine Organisms Rearing Test
Click here for details2023.9.28TEPCO Holdings’ action on the handling of ALPS treated water
ALPS Treated Water Discharge Status Update
Click here for details2023.9.21ALPS treated water dilution/discharge facility
Analysis Results of ALPS Treated Water Sampled from the Measurement/Confirmation Facility Tank Group C
Click here for details2023.9.19Information
Addition of quick measurement data from each agency to the website “Overarching Radiation-monitoring data Browsing System (ORBS)”
Click here for details2023.9.11ALPS treated water dilution/discharge facility
Completion of the Discharge from Measurement/Confirmation Facility Tank Group B (First Discharge)
Click here for details2023.9.7ALPS treated water dilution/discharge facility
Status of Measurement/Confirmation Facility Tank Group B Discharge and Discharge Completion Process
Click here for details2023.9.1Sea area monitoring
Tritium concentration analysis results from sea area monitoring (within 3km of the power station (near the discharge outlet))
Click here for details2023.8.31Marine organisms rearing test
Status of Progress of the Marine Organisms Rearing Test
Click here for details2023.8.25Sea area monitoring
Tritium concentration analysis results of seawater pipes and sea area monitoring pertaining to ALPS treated water discharge into the sea
Click here for details2023.8.24TEPCO Holdings’ action on the handling of ALPS treated water
Commencement of the Discharge of ALPS Treated Water into the Sea
Click here for details2023.8.24TEPCO Holdings’ action on the handling of ALPS treated water
Commencement of the Initial Discharge of ALPS Treated Water (Stage 2)
Click here for details2023.8.23TEPCO Holdings’ action on the handling of ALPS treated water
Commencement of preparations for the initial discharge of ALPS-treated water (First Stage)
Click here for details2023.8.22TEPCO Holdings’ action on the handling of ALPS treated water
Commencement of the Discharge of Water Treated with Multi-nuclide Removal Equipment (ALPS Treated Water) into the Sea
Click here for details2023.7.27Marine organisms rearing test
Status of Progress of the Marine Organisms Rearing Test
Click here for details2023.7.27ALPS treated water dilution/discharge facility
ALPS Treated Water Dilution and Discharge Facilities Status and Measures to Ensure Safety
Click here for details2023.6.29ALPS treated water dilution/discharge facility
Status of Progress with the Installation of ALPS Treated Water Dilution/Discharge Facility and Related Facilities
Click here for details2023.6.29Marine organisms rearing test
Status of Progress of the Marine Organisms Rearing Test
Click here for details2023.6.22ALPS treated water dilution/discharge facility
Analysis Results of ALPS Treated Water Sampled from the Measurement/Confirmation Facility at the Fukushima Daiichi Nuclear Power Station
Click here for details2023.5.29Technology to separate tritium from water
Signing of nondisclosure agreement pertaining to feasibility study on technology for separating tritium from ALPS treated water, etc. (the period 2 and 3) and other announcement
Click here for details2023.5.25ALPS treated water dilution/discharge facility
Status of Progress with the Installation of ALPS Treated Water Dilution/Discharge Facility and Related Facilities
Click here for details2023.5.25Marine organisms rearing test
Status of Progress of the Marine Organisms Rearing Test
Click here for details2023.5.18Sea area monitoring
Setting Index (Discharge suspension level) and Other Measures in Sea Area Monitoring regarding the Discharge of ALPS Treated Water into the Sea
Click here for details2023.4.27ALPS treated water dilution/discharge facility
Status of Progress of the installation of ALPS treated water dilution/discharge facility and related facilities
Click here for details2023.4.27Marine organisms rearing test
Status of Progress of the Marine Organisms Rearing Test
Click here for details2023.4.24ALPS treated water dilution/discharge facility
Partial Revision of the "Application Documents for Approval to Amend the Implementation Plan for Fukushima Daiichi Nuclear Power Station Specified Nuclear Facility" Regarding the Handling of ALPS Treated Water
Click here for details2023.3.30Marine organisms rearing test
Status of Progress of the Marine Organisms Rearing Test
Click here for details2023.3.30ALPS treated water dilution/discharge facility
Status of Progress of the installation of ALPS treated water dilution/discharge facility and related facilities
Click here for details2023.3.27ALPS treated water dilution/discharge facility
Sampling from the measurement/confirmation facility that is part of ALPS treated water dilution/discharge facility in the Fukushima Daiichi Nuclear Power Station
Click here for details2023.3.16ALPS treated water dilution/discharge facility
Completion of pre-use inspections of ALPS treated water dilution/discharge facility measurement/confirmation facility at the Fukushima Daiichi Nuclear Power Station and commencement to operate circulation/agitation equipment
Click here for details2023.3.13Information
Launching of Overarching Radiation-monitoring data Browsing System (ORBS)
Click here for details2023.3.9Technology to separate tritium from water
Signing of nondisclosure agreement pertaining to feasibility study on technology for separating tritium from ALPS treated water, etc.
Click here for details2023.2.22Marine organisms rearing test
Status of Progress of the Marine Organisms Rearing Test
Click here for details2023.2.22
Status of Progress of the installation of ALPS treated water dilution/discharge facility and related facilities
Click here for details2023.2.20ALPS treated water dilution/discharge facility
Partial Revision of the "Application Documents for Approval to Amend the Implementation Plan for Fukushima Daiichi Nuclear Power Station Specified Nuclear Facility" Regarding the Handling of ALPS Treated Water
Click here for details2023.2.20Radiological impact assessment
*Radiological Environmental Impact Assessment Report Regarding the Discharge of ALPS Treated Water into the Sea (Construction stage) (From 264 page)
Click here for details2023.2.14ALPS treated water dilution/discharge facility
Partial Revisions of the "Application Documents for Approval to Amend the Implementation Plan for Fukushima Daiichi Nuclear Power Station Specified Nuclear Facility" Regarding the Handling of ALPS Treated Water
Click here for details2023.2.14Radiological impact assessment
*Radiological Environmental Impact Assessment Report Regarding the Discharge of ALPS Treated Water into the Sea (Construction stage) (From 272 page)
Click here for details2023.1.26ALPS treated water dilution/discharge facility
Status of Progress of the installation of ALPS treated water dilution/discharge facility and related facilities
Click here for details2022.12.22Sea area monitoring
Status of Sea Area Monitoring for the Handling of ALPS Treated Water
Click here for details2022.12.22ALPS treated water dilution/discharge facility
Status of Progress of the installation of ALPS treated water dilution/discharge facility and related facilities
Click here for details2022.12.1Sea area monitoring
Examining the tritium analysis values of fish during sea area monitoring in preparation for the discharge of ALPS treated water into the sea
Click here for details2022.11.24ALPS treated water dilution/discharge facility
Announcement regarding the installation work of Fukushima Daiichi Nuclear Power Station ALPS treated water dilution/discharge facility and related facilities
Click here for details2022.11.18ALPS treated water dilution/discharge facility
Installation of Discharge Outlet Caisson
Click here for details2022.11.14ALPS treated water dilution/discharge facility
Submission of the "Application Documents for Approval to Amend the Implementation Plan for Fukushima Daiichi Nuclear Power Station Specified Nuclear Facility" Regarding the Handling of ALPS Treated Water
*Including "Attachment 3 : Radiological Environmental Impact Assessment Regarding the Discharge of ALPS Treated Water into the Sea (Construction stage)"
Click here for details*Including "Attachment 3 : Radiological Environmental Impact Assessment Regarding the Discharge of ALPS Treated Water into the Sea (Construction stage)"
2022.11.14Radiological impact assessment
*Radiological Environmental Impact Assessment Report Regarding the Discharge of ALPS Treated Water into the Sea (Construction stage) (From 218 page)
Click here for details2022.10.27ALPS treated water dilution/discharge facility
Status of Progress of the installation of ALPS treated water dilution/discharge facility and related facilities
Click here for details2022.9.29Marine organisms rearing test
Start of the Marine Organisms Rearing Tests
Click here for details2022.9.12Marine organisms rearing test
Progress in preparations for the marine organisms rearing test
Click here for details2022.8.3ALPS treated water dilution/discharge facility
Installation of ALPS Treated Water Dilution/Discharge Facility and Related Facilities Given the Approval of the Amendment of the Implementation Plan and the Prior Consent based on the Agreement to Ensure Safety in Decommissioning
Click here for details2022.7.21Marine organisms rearing test
Progress in the marine organisms rearing test (Start of rearing practice in the mockup tanks)
Click here for details2022.7.15ALPS treated water dilution/discharge facility
Partial Revision (third revision) of the “Application Documents for Approval to Amend the Implementation Plan for Fukushima Daiichi Nuclear Power Station Specified Nuclear Facility” Regarding the Handling of ALPS Treated Water
Click here for details2022.7.15Radiological impact assessment
*Radiological Impact Assessment Report Regarding the Discharge of ALPS Treated Water into the Sea (Design stage / Revised version) (From 241 page)
Click here for details2022.7.14Marine organisms rearing test
Progress in preparations for the marine organisms rearing test
Click here for details2022.6.13Technology to separate tritium from water
Secondary assessment of proposals from Period 2 and primary assessment of proposals from Period 3 on technology for separating tritium from ALPS treated water, etc.
Click here for details2022.5.26ALPS treated water dilution/discharge facility
(Report) Improvements in the Surroundings of ALPS Treated Water Dilution/Discharge Facilities at the Fukushima Daiichi Nuclear Power Station
Click here for details2022.5.26Sea area monitoring
Status of Sea Area Monitoring for the Handling of ALPS Treated Water
Click here for details2022.5.13ALPS treated water dilution/discharge facility
Partial Revision (second revision) of the "Application Documents for Approval to Amend the Implementation Plan for Fukushima Daiichi Nuclear Power Station Specified Nuclear Facility" Regarding the Handling of ALPS Treated Water
Click here for details2022.5.13Radiological impact assessment
*Radiological Impact Assessment Report Regarding the Discharge of ALPS Treated Water into the Sea (Design stage / Revised version)
Click here for details2022.4.28ALPS treated water dilution/discharge facility
Revision of the "Application Documents for Approval to Amend the Implementation Plan for Fukushima Daiichi Nuclear Power Station Specified Nuclear Facility" Regarding the Handling of ALPS Treated Water
Click here for details