Press Release
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

April 28, 2022

Tokyo Electric Power Company Holdings, Inc.

Considering the Basic Policy on handling of ALPS treated water at the Tokyo Electric Power Company Holdings' Fukushima Daiichi Nuclear Power Station decided by the Japanese government in April 2021, TEPCO had been reviewing the details of the design and operation of facilities for securing safety regarding the handling of ALPS treated water at the Fukushima Daiichi Nuclear Power Station, listening to opinions of the people in the region and parties concerned. And, on December 21, 2021, we submitted the "Application Documents for Approval to Amend the Implementation Plan for Fukushima Daiichi Nuclear Power Station Specified Nuclear Facility" for the basic design of ALPS treated water dilution/discharge facility and related facilities to the Nuclear Regulation Authority.

(Announced on December 21, 2021)

Thereafter, the Nuclear Regulation Authority pointed out items pertaining to the implementation plan on the discharge of ALPS treated water during review meetings. In light of the items that were brought up, today, TEPCO submitted a partially revised "Application Documents for Approval to Amend the Implementation Plan for Fukushima Daiichi Nuclear Power Station Specified Nuclear Facility" to the Nuclear Regulation Authority.

We will continue to thoroughly implement measures related to the handling of ALPS treated water based on the Japanese government's basic policy while continuing to carefully listen to the opinions from parties concerned so as to further ensure safety.

<Attachment>

• Attachment 1: Partial Revision of the Application for approval to amend the Implementation Plan for Fukushima Daiichi Nuclear Power Station as Specified Nuclear Facility(44.5KB)
• Attachment 2: Partial revisions to the Application Document for Approval to Amend the Implementation Plan Regarding the Handling of ALPS Treated Water [Overview](3.22MB)
• Attachment 3: Revision of the Radiological Impact Assessment Report Regarding the Discharge of ALPS Treated Water into the Sea (Design stage)(3.03MB)