Our office has just completed two exploration drillings in Thônex, on behalf of the Industrial Services of Geneva. This work has allowed to clarify the local geology and hydrogeology, which until now were largely unknown beyond the surface water table. The first drilling, entirely cored, reached the underlying tertiary rocks at a depth of 103 m. It brings precious punctual information and allows to complete the hydrogeological characteristics of the Puplinge aquifer that our office has been studying for more than a year.
The short movie below illustrates the different steps of the project, from the installation of the site machinery to the drilling, the core sampling and the pumping tests. Dropstone is very pleased to actively contribute to the priority of Geneva’s energy policy and to the development of geothermal energy as a clean, local and renewable energy source (www.geothermies.ch).
Thanks to our cartographer and skilled drone pilot Javier Morales for these images.