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The Environment Agency has
Geological disposal means permanently disposing of the most hazardous types of radioactive waste in a specially designed facility between 200 and 1,000 metres underground. Harmful quantities of radioactivity will be prevented from reaching the surface by a number of barriers. These include the
The depth of the facility will protect the radioactive waste from the effects of
The UK government has decided that geological disposal is the best available approach for higher activity radioactive waste. This is based on independent advice. Find out more about the UK governments policy on geological disposal. Nuclear Waste Services is responsible for developing a geological disposal facility GDF. A site will be selected in partnership with willing communities. Formal engagement with potential host communities has started. Find out more about Nuclear Waste Services and information on geological disposal. Environment Agencys role in geological disposal
The Environment Agency regulates the disposal of radioactive waste from
Disposal includes
The Environment Agency is responsible for making sure that the developer of a GDF meets the high standards it has set to protect people and the environment. This includes during the design, development, operation and closure of the facility. The Environment Agency considers that the geological disposal of long-lived radioactive waste can provide a safe and sustainable solution. It supports the implementation of geological disposal because radioactive waste stored at the surface would need to be managed for several hundred thousand years. The Environment Agency will not be involved in the decisions to select a potential site for a GDF. Its regulatory role will start after a site or sites has been selected for further investigation. But, during site selection, the Environment Agency will be available to support discussions with communities, local authorities and others considering hosting a GDF. It will provide information and advice on environmental protection. It will also explain how its work will help protect people and the environment now and in the future during the development, operation and closure of a GDF. Joint regulation of Nuclear Waste Services
The Environment Agency will regulate a GDF jointly with the Office for Nuclear Regulation ONR. The ONR is responsible for regulating
By working together, the two regulators will make sure that the developer of a GDF meet the required high standards for
Before regulation starts, the Environment Agency and ONR are scrutinising Nuclear Waste Services work. They are doing this in the early stages of implementing geological disposal so Nuclear Waste Services can understand what it needs to do to
In addition, the regulators have assessed the 2016 generic disposal system safety case, which was prepared by Radioactive Waste Management RWM, the predecessor organisation to Nuclear Waste Services. This aims to give confidence that a GDF can be implemented safely in the UK. It describes and assesses the safety and environmental impacts associated with geological disposal of radioactive waste. The Environment Agency and ONR provide more information about their joint scrutiny work through regular reports such as their annual scrutiny reports and regulatory scrutiny reports.
These provide summaries of work carried out under the joint scrutiny programme. Regulating each stage of development
Regulation will start when the developer wants to begin surface-based site investigations using boreholes. A GDF will need to be regulated for many decades - possibly for more than a hundred years. After a GDF has closed, regulatory control will only end when the operator has met requirements to protect people and the environment in the long term. The Environment Agency will regulate the development of a GDF using staged regulation. The purpose of staged regulation is to make sure that the facility is developed in ways that properly protect people and the environment and do not undermine the long-term performance of the GDF. The developer will need Environment Agency approval before they can start each of these development stages
Throughout each stage the Environment Agency will inspect and check the operator has complied with the environmental permit granted. They will take any enforcement action needed if they identify non-compliances.
The Environment Agency will regularly review the environmental permit to make sure it remains appropriate. Surface-based site investigation
A developer will need to apply for an environmental permit when they want to drill boreholes, for example to find out about the geology and hydrogeology at a proposed location for the GDF. At this stage the Environment Agency would expect the developer to provide information about how they will
The Environment Agency would also expect the developer to provide an initial site evaluation with information about
The Environment Agency will only grant an environmental permit if the developer meets the necessary regulatory requirements. To comply with an environmental permit, the developer will also need to
Underground investigation
The next set of regulatory decisions will be made when the developer wants to carry out underground investigations at a possible site. This will provide further information, for example, about the geology and hydrogeology at the depth they plan to build the GDF. As part of their underground investigations, the developer will need to build access shafts and tunnels.
Its likely they will also need facilities on the surface, for example to provide ventilation and access. The Environment Agency will make decisions about whether to allow underground investigation to begin. At this stage the Environment Agency would expect the developer to provide additional information from site investigations to support their application for an environmental permit. This information may include assessments of the feasibility of building a GDF. The Environment Agency will only grant an environmental permit if the application meets its regulatory requirements. It would also expect a developer to be able to demonstrate that underground investigations will not affect the long-term environmental safety of the candidate site. Building the infrastructure
Building activities could include excavating vaults to dispose of the radioactive waste and tunnels to access the vaults. Construction is also likely to start on the surface facilities where radioactive waste will be received and securely stored before it is transferred underground for disposal. The developer will need an environmental permit to cover this stage of the construction activity. At this stage the developer will need to provide the Environment Agency with a comprehensive and robust Environmental Safety Case. This must demonstrate that a GDF at the site would meet regulatory requirements for disposing of radioactive waste. This evidence will help the Environment Agency decide, in principle, if they could eventually grant an environmental permit to dispose of radioactive waste. Operating the facility disposing of radioactive waste
Before the operator of a GDF can receive the first waste packages they will need an environmental permit to dispose of radioactive waste. They will need to provide evidence that once the facility is closed, people and the environment will be protected in the long term. The environmental permit for the operational stage will include conditions that set the
The operational stage is likely to last 100 years or more. During that time the operator will need to regularly review its environmental safety performance. They will need to submit reports of these reviews to the Environment Agency. The Environment Agency will look at the updated evidence and decide whether the operator is continuing to provide a high standard of protection for people and the environment. If the operator is not meeting its regulatory requirements, the Environment Agency can take enforcement action.
This could include stopping disposal operations until the operator has taken the action needed to comply with their environmental permit. Closing the facility
The operator will need to have plans in place for closing and sealing the GDF before it can start to dispose of any radioactive waste. The Environment Agency will scrutinise these plans to make sure they meet regulatory requirements for the long term protection of people and the environment. The Environment Agency expects the operator to regularly review and update these plans to reflect any new knowledge gained from research, development or demonstration studies. Once the operator wants to close the facility, the plans will support their application for regulatory permission to close the GDF. This includes dismantling and removing the surface facilities. The operator must demonstrate that the way the GDF has been closed and sealed meets the conditions of the environmental permit. The Environment Agency will need to be satisfied that the site will meet standards to protect people and the environment before they will allow the operator to surrender give up their environmental permit. Guidance for the developer
The Environment Agency has published guidance on the principles and requirements that the developer will need to comply with to be granted an environmental permit. The guidance covers the development, operation and eventual closure of a GDF for radioactive waste. Evidence reports
The Environment Agency has also published technical studies related to geological disposal. Public and stakeholder engagement
You will be able to talk to Environment Agency specialists and respond to consultations on guidance and environmental permits for any future GDF. See how the Environment Agency is engaging with the public and stakeholders on geological disposal. You can send feedback on our approach. Email comments to nuclearenvironment-agency.gov.uk. Watch the Environment Agencys animation which explains its role in regulating geological disposal
Animation Regulating the geological disposal of radioactive waste
Contact
For more information about the Environment Agencys role in the regulation of geological disposal email nuclearenvironment-agency.gov.uk.