Hydroisotop GmbH is a hydrogeochemical consulting company with its own laboratory (39 employees), which has worked in the field of geothermal energy for 40 years. Hydroisotop is i.a. specialized in sampling, analyses and interpretation of deep thermal groundwaters as well as in the evaluation of potential geochemical processes within the primary water cycle in geothermal plants. Within MALEG, Hydroisotop will be responsible for the collection of hydrochemical and operational data, for the initial sampling of thermal water in Unterschleißheim and Turkey and for the analyses of thermal water and gases from the initial samplings and the demonstrator experiments. Further, Hydroisotop will be responsible for the evaluation and interpretation of the hydrochemical and operational data sets.