New phase of deep repository project begins with geophysical (seismic) surveys

Today, the contract for "Geophysical (Seismic) Surveys at Representative Sites" concluded between the Ignalina Nuclear Power Plant (hereinafter INPP) and Ltd. Geobaltic has entered into force. Ltd. Geobaltic, which specialises in geophysical surveys, employs highly qualified professionals. This is expected to ensure the representativeness of the surveys and the smooth progress of the planned surveys. The term of the contract is 12 months.

"Conducting geophysical (seismic) surveys is an important starting point in a deep burial ground (DGB) project. The survey will help to gather more detailed information on potentially suitable formations for the construction of the burial site from a geological point of view.

"Conducting geophysical (seismic) surveys is an important starting point in a deep repository (DR) project. The survey will help to gather more detailed information on potentially geologically suitable formations for repository construction. Based on the results of these investigations a programme of further investigations necessary for the selection of the repository site, which will allow to optimally plan and implement further phases of the project. We would like to point out that the GR project and its implementation today is the only way in the world that is sustainable for the final management of radioactive waste. The progress of this project demonstrates an advanced and responsible approach of the state to radioactive waste management without shifting this responsibility to future generations," - said Audrius Kamienas, INPP Director General.

In accordance with the recommendations of the International Atomic Energy Agency and the studies conducted by the Lithuanian Geological Survey, three sites were selected for geophysical (seismic) surveys. The sites selected for the survey best reflect the depositional conditions of the geological formations and the tectonic structure of the area suitable for potential GRs, considering the availability of sufficient public land. Based on these criteria, the municipalities of Kazlų Rūda, Alytus and Varėna districts, and Švenčionys district have been selected as suitable sites for the study. It is important to note that this study will focus on a more detailed investigation of potentially suitable formations and at the elaboration of the information already available on them. Following these studies, the best potential sites for the installation of GRs will be sought throughout Lithuania.

The studies will analyse the available data, conduct field work at the sites (seismic surveys), systematise and interpret newly acquired data, and analyse the tectonic framework. The results of the geophysical (seismic) surveys at representative sites will enable the selection of an optimal geophysical (seismic) survey methodology for the evaluation of potential deep repository sites and the planning of the further geophysical (seismic) surveys necessary for the selection of a repository site based on the geological criteria of deep repository site selection. We would like to remind you that the construction of the GR is envisaged by Nuclear Power Facilities Decommissioning and Radioactive Waste Management Development Program 2021-2030, approved by the Government of Republic of Lithuania on February 3, 2021. The GR project under this programme has the main objective of ensuring the safety of the public and the environment through the final management of long-lived radioactive waste. 

More information on the ongoing project can be found here. 

Associative photo (@covra.nl  gallery) is used for the article