ABSTRACT

The drinking water supply for the Geneva area comes partly (80%) from the Lake of Geneva and partly (20%) from a large aquifer called Genevois aquifer. During the 1970’s, overpumping lowered the groundwater level by more than 7 m. Artificial recharge has been carried out from the Arve river into the Genevois aquifer in order to maintain the groundwater level and enable water resources management. Located near the Arve river, this artificial recharge plant started its activity in 1980. For the last 20 years the artificial recharge system of Geneva has brought over 200 M m3 of treated water into the Genevois aquifer. The impacts of the recharge on the Genevois aquifer and on the aquifer management are described in this paper.