TEPCO Holdings’ Action in Response to the Government’s Policy on the Handling of ALPS Treated Water
April 16, 2021Tokyo Electric Power Company Holdings, Inc. 
【Digest version】
Attachment 2
※Correction made on April 19, 2021 (P8)
We deeply apologize for the immense burden and deep concern the TEPCO HoldingsFukushima Daiichi Nuclear Power Station accident is causing the local residents and society atlarge. We would also like to offer our apologies for the string of recent incidents that have causedconcern about TEPCO’s nuclear operations and distrust in us as a company.
Recently, the Government of Japan published the “Basic Policy on handling of ALPS treatedwater at the Tokyo Electric Power Company Holdings’ Fukushima Daiichi Nuclear Power Station”(hereinafter government policy) at the 5th Inter-Ministerial Council for Contaminated Water,Treated Water and Decommissioning Issues held on April 13.
We are taking seriously that this government policy on the handling of ALPS treated water wasput forth based on opinions expressed by parties concerned at various opportunities in additionto the discussions held by the Subcommittee on Handling of ALPS Treated Water and theTritiated Water Task Force (hereinafter ALPS Subcommittee).
TEPCO Holdings will work to ensure our response is strictly based on this government policy.
Introduction 
•In releasing ALPS treated water*1 into the sea, we will ensure that the discharged water is safe by conforming to safety standards
based on laws, and relevant international laws and practices, while conducting radiation impacts assessments on people and the
environment*2 . Thus we will secure the safety of the public, the surrounding environment, and of agricultural, foresty and fishery
products.
•In releasing ALPS treated water into the sea, we will enhance and strengthen our sea area monitoring efforts to minimize any
potential adverse impacts on reputation.
•We will secure objectivity and transparency in monitoring, requesting cooperation from experts and the people in the agricultural,
forestry, fishery industry.
•On-site tanks that store ALPS treated water will be continuously monitored for leaks and will be maintained and managed
appropriately in preparation for natural disasters.
•To mitigate concerns and foster understanding domestically and abroad, we will continuously disseminate accurate information
on the impacts of the ALPS treated water on the environment and the results of radiological impact assessment for public and
environment in a transparent manner, which include the concentration of radioactive materials in the ALPS treated water and
assessment results before it is discharged, progress in discharge and the results of sea area monitoring.
•To minimize any potential adverse impacts on reputation, we will do our utmost in supporting industries that may be subject to
potential adverse impacts on reputation at each stage from production, processing, distribution, to consumption (develop new
markets, etc.).
•If reputational damage is incurred as a result of the discharge of ALPS treated water despite these efforts, we will provide swift
and appropriate compensation.
1.TEPCO Holdings’ Approach to the Discharge of ALPS Treated Water
Basic position 
Strengthening andenhancing the scope of monitoring
Information dissemination and minimizing  rumors
Appropriate compensation
•*1 Water that has been purified and treated by devices such as ALPS until radioactive materials other than tritium will surely satisfy the regulatory standards for safety.•*2 Includes any latent effects the ALPS treated water may have on the marine environment 
Preventing leaks from tanks
2.Design and Operation of Necessary Facilities 
Seawater transfer pump
Mixed with seawater 
and dilute sufficiently.
Sample tank 
Strontium 
reduced waterOn-site storage tank
Secondary treated water
WasteDilution
As the water will be diluted with 
large amounts of seawater 
(diluted by more than hundred 
times), the sum of ratios of the  
concentration of each radionuclide other than tritium to the regulatory standard of each is less than 0.01 in the diluted 
water that will be discharged.
Emergency isolation valve 
Emergency measures
Discharge will be stopped if the facilitiescannot perform their expected functionsdue to failure or outages, or if abnormalvalues have been detected in sea areamonitoring.
Secondary treatment
Secondary treatment will be conducted as necessary to ensure that the level of radioactive materials excluding tritium is lower* than the regulatory standard value  for safety
＊Sum of the ratios of each radionuclides other than tritium concentration to the 
regulatory standards for them is less than one 
Sum of ratios of the concentration 
of each radionuclide other than 
tritium to the regulatory standard 
of each is less than one
Sum of ratios of the 
concentration of each 
radionuclide other than 
tritium to the regulatory 
standard of each is 
more than one
Listening closely to the opinions of parties concerned, we will design and operatefacilities necessary for discharge of ALPS treated water into the sea by creating a plan tosteadily implement the government policy while preparing to obtain necessary approvalsfrom the NRA.
Amount discharged
In the near term, discharge amountswill be within the threshold of 22 trillion
Bq/year which is the target discharge
managementvalueforFukushimaDaiichibeforetheaccident.Thisamount will be reviewed as neededbasedonprogressmadeindecommissioning.
［ALPS］
Secondary treatment facilities
Site use plan
Necessary measures to discharge ALPS treated water consistently and to build facilities necessary in decommissioning will be closely studied given the government policy. 
Conceptual diagram of facilities 
for releasing ALPS treated 
water into the sea
Concentration of tritium inside discharged water
The tritium concentration of the discharged water will be
less than 1500 Bq/L. This will be assessed based on the
tritium concentration in the ALPS treated water before
discharge and the amount of water it was diluted by.
Analysis of ALPS treated water
TEPCO will publish the concentration of tritium, 62 nuclides (nuclides subject to removal by ALPS), and carbon-14 in ALPS treated water and the results of assessments as well as the 3rd parties’ 
measurement and assessment results.
•In addition to conducting sea area monitoring according to the monitoring reinforcement plan, we will alsohave third parties take measurements and publish them.•We will ask that the agricultural, forestry, and fishery producers and local government officials participate inand observe our sea area monitoring efforts.•We will respond appropriately to the advice of the new meeting body to be established by the governmentcomprised of experts on the marine environment.
•We will conduct fish feeding trials to provide empirical information about radioactivity in ALPS treated wateras part of environmental monitoring.
3.Environmental Monitoring 
In addition to existing sea area monitoring of Cesium 137, we will be focusing on measuring and assessingtritium.Enhanced sea area monitoring will be started around a year before discharge of ALPS treated water isscheduled to start.
 We will increase the number of locations at which samples are collected and the frequency of analysis in monitoring tritium concentrations.  
 We will analyze for tritium in addition to cesium which is currently being analyzed.  We will increase the number of locations at which samples are collected and the frequency of analysis. 
Seaw a t e r
Fishes andSeaweeds
•Considering not just domestic legislations but also relevant international laws and practices, we plan toreceive reviews by IAEA experts which will cover the safety of the design of facilities and their operationmethods; the plan and implementation status of the sea area monitoring; the capability of the radiationmeasurement of TEPCO; the assessment of radiological impact for the public and the environment, and soon.•TEPCO Holdings will study the specific design of facilities for transfer and dilution process and its operation,and prepare for the assessment of radiological impact for the public and the environment, to provideinformation and explanations to the IAEA
4.Review on the safety by the IAEA
We plan to receive reviews by IAEA experts before and after the start of thedischarge, and reflect appropriately IAEA’s guidance and advisory points to furtherimprove and strengthen our measures.
IAEA review mission observing the field (February 2015) 
IAEA review mission exchanging opinions with the station management (November 2018) 
IAEA review mission observing the field (November 2018) 
5.Response to the Effects of Rumors and Reputational Damage
We will thoroughly implement initiatives to foster understanding among society, providenecessary support to industries that may be affected by rumors in the production, processing,distribution, and consumption stages and counteract any reputational damage.
▐ Actively roll out efforts to communicate to conveyinformationaccurately
 Disseminate information in an accurate and timely mannerdomestically and abroad
 Develop and actively use PR tools such as videos andpamphlets
 Taking advantage of various opportunities such as tours andvisits of Fukushima Daiichi and events, increase the visitingpopulationtotheHamadoriareaandconducttwo-waycommunication.
 Receive visitors from other countries
▐ Implementactivitiestopromotethedistributionofagricultural,forestry,andfisheries product of Fukushima Continue distribution promotion activities of agricultural, forestry,and fishery products of Fukushima in the Tokyo Metropolitan areaand within Fukushima. Strengthen and enhance efforts to cultivatemarkets for Joban-mono (products from the Joban area) to supportthe recovery of fisheries and increase lading.
 Support fishery-related brokers and processors in the Hamadoriarea
 Enhance and expand measures through dialogue and discussionwith Fukushima Prefecture, other neighboring prefectures, andconcerned parties
▐ Provide swift and appropriate  compensation  
 Carefully confirm the actual damage and loss
 Explain concrete compensation standards
 Set up a dedicated inquiry desk/respond as appropriate
Foster understanding and communicate domestically and aboard 
Measures implemented in production/processing/distribution/consumption 
Response if there is any reputational damage 
Minimize any potentialadverse impacts on reputation
Further enhance the Treated Water Portal Site Develop PR tools for explaining tritium, treated water, and the discharge method
【Reference】Communication to Accurately Convey Information 
We will continually and actively disseminate accurate information to further foster understanding domestically and abroad. 
We will communicate the discharge method, inspection system, measurements and monitoring results accurately in a timely and easy-to-understand manner. We will also continuously improve our communication based on feedback.
We will continue to encourage media and experts to cover and visit Fukushima Daiichi so that accurate information on ALPS treated water based on scientific evidence is disseminated in various forms.We will also disseminate information in a timely and appropriate manner using websites and social media.
We will ensure two-way communication where we sincerely engagewith the stakeholders’ concerns and opinions gathered through tours, events, visits, and other opportunities. We will apply the insights gained in running the decommissioning business. 
We will disseminate information in an accurate and timely manner through the website and social media. 
We will aim to foster the international society's understanding of our efforts by receiving visits from abroad.
Disseminate accurate information overseas 
Disseminate information through media, and through websites and social media
Two-way communication at every opportunity 
Treated Water Portal Site
A station visit 
【Reference】 Response if Reputational Damage is Incurred (Compensation) 
If reputational damage is incurred as a result of ALPS treated water discharge despitemeasures to minimize any potential adverse impacts on reputation※, we will swiftly and
appropriately compensate for the damages.
Basic approach ・We will compensate for damages resulting from the discharge of ALPS treated water without putting a restriction beforehand on the 
compensation period, area or industry that can be compensated. 
・When confirming the extent of damage, we will carefully listen to circumstances of each individual case and will respond appropriately. We will respond flexibly to minimize the impacts on the persons to 
which the damage was sustained by infer the amount of damage using 
rational means. 
・We will carefully explain specific standards for compensation in 
response to the concerns of stakeholders and endeavor to reach an understanding. We will set up a dedicated inquiry desk to pick up on 
concerns. We will listen and engage with each concern, considering the situation of each parties concerned. 
※Correction made on April 19, 2021Error : rumorsCorrection : any potential adverse impacts on reputation
•We have not been able to confirm the existence of tritium separation technology that can beused on ALPS treated water at Fukushima Daiichi; the ALPS Subcommittee and the IAEA areof the same view.
•We will consider a new scheme involving a third party that will widely investigate and receiveproposals regarding the feasibility of tritium separation technology, and will actively verify andadopt those technologies if they are found to be feasible.
6.Investigation Regarding Tritium Separation Technology
We will continue to keep a close eye on new technological developments in tritium separationtechnology.
T E P C OH D
Third party 
Investigation（around once a year）Proposal（as appropriate）Confirm technical feasibility 
Will confirm technical feasiblyand provide advice as necessary.
Take proposals/investigate 
Demonstration experiment
Specific design 
TEPCO Holdings is committed to steadily completing the decommissioning of Fukushima Daiichi Nuclear Power Station putting safetyabove all else. We will provide a concreate plan based on the Mid-and-Long Term Roadmap※1 and the government policy on thehandling of ALPS treated water under the great principle of balancing recovery and decommissioning. Furthermore, we will work tocommunicate swiftly, accurately, and objectively to deepen the siting region and society’s understanding of our handling of the ALPStreated water and other decommissioning efforts without causing concern, and do our utmost to respond to adverse impacts onreputation.We will continuously disseminate information at each stage from preparing to discharge ALPS treated water into the sea, start ofdischarge, to after discharge, and will engage in dialogue with parties concerned.
In addition to striving to recover trust in our business endeavors, as the party responsible for the Fukushima Daiichi Nuclear PowerStation Accident, TEPCO will move steadily forward with the decommissioning of the Fukushima Daiichi Nuclear Power Station,contaminated water and treated water countermeasures, while prioritizing safety. a year before
Conclusion
Subcommittee on Handling of ALPS Treated Water 
Government TEPCOTEPCONRA
＜Reference> Plan going forward 
Around a year before discharge)Strengthen sea area monitoring 
Preparatory works 
Discussion by experts  
Suggestion to the government (report) 
Receiving opinions from wide range of parties concerned
Decide on the basic policy 
April 2021
Decide on concrete ways by which to handle ALPS treated water ※
Receive approval from the NRA 
Apply for approval of changes to the implementation plan 
Approx. 2 years 
Start discharge ※
※3 Carefully start with releasing small amounts of ALPS treated water 
Continue sea area monitoring 
※1 “TEPCO Holdings Mid-and-Long-Term Roadmap towards Decommissioning of the Fukushima Daiichi Nuclear Power Station
※2 Including radiological impact assessment for public and environment