This Thursday, the work and results of the study that Amphos21 has carried out for the Catalan Water Agency were presented. It is about the groundwater flow model of the fluviovolcanic aquifer of La Garrotxa and has been presented at Casal dels Volcans in Olot with technicians from the Agency, the director and technicians of the Natural Park of the Volcanic Zone of La Garrotxa and technicians of the Environment and Public Health Consortium of Garrotxa SIGMA.