See II.2.4

The context of the market is the study relating to the subsoil of the Euregio Meuse Rhin site for the application of the Einstein Telescope in which the University is involved through several preparatory projects. The purpose of this contract is to carry out a geophysical study by microgravimetry consisting in studying the variations of the local gravity chamber by a measurement on the surface of the ground at several points of an area in order to establish the density distribution of the subsoil (excess or defects of mass). The goal is to allow a characterization of the Booze-Val-Dieu structure, and the potential faults or geological structures surrounding it. This study is part of the E-TEST project coordinated by the University of Liège, funded by the European Cross-border Cooperation Programme INTERREG EMR and co-funded by the Walloon Region. The study area is located on several municipalities, regions and countries and covers an area of 15km by 15km. The contract is estimated at 400,000 Euros including VAT and paid entirely on subsidy through the Interreg E-TETS (OTP) project.