Breadcrumb Home Video content The main stages in drilling a borehole Video content The main stages in drilling a borehole Share Drilling of a borehole in Issoudun so as to be able to constantly measure the level of the Berry water table. 15 June 2015 Groundwater Centre-Val de Loire region Discovering the Earth Sciences Citizen, citizen's group Student Teacher, pupil The main stages of the drilling operation – using the "Down-the-hole hammer" method. Example of a borehole in Issoudun, the objective being to monitor level of the Berry water table (Upper Jurassic limestone). In 2014, the structure was fitted with equipment to constantly measure the water table level. Film produced for the SIGES Centre (Indre, 2014). © BRGM Visit BRGM's YouTube channel More news Press release BRGM and Fleet Space Technologies Sign MoU 3 July 2026 BRGM Infos newsletter BRGM Infos newsletter for July 2026 2 July 2026 News The multi-award-winning Professeur Caillou podcast 24 June 2026 Press release The R’Garonne Project: an initial trial of controlled recharge of the Garonne alluvial aquifer 22 June 2026 All our news
In 2014, the structure was fitted with equipment to constantly measure the water table level. Film produced for the SIGES Centre (Indre, 2014).