GRS VALTECH is a specialized subsidiary of the SARPI - VEOLIA group, which has been active for nearly 30 years in France and internationally in: - Design, engineering and building, - Engineering and treatment of pollution in underground environments (soil and groundwater), - Management and treatment of liquid effluents, - Management, treatment and recovery of biogas. GRS VALTECH has a unique cutting-edge expertise: dedicated internal teams provide engineering, studies, design, manufacture and operation of our treatment units. A specific know-how that positions us today among the market leaders. Particularly committed to an innovation process, our teams are constantly developing new technologies and adapting existing processes to respond as closely as possible to the specific problems of our customers, in complete safety! We are proud to support our customers each year on nearly 300 projects for all of our activities and thus contribute, alongside them, to the protection of the environment!