The Pontevedra river hosts two very polluting companies which have been dumping their waste into the river for many years: ENCE, a pulp mill and biomass energy producer and ELNOSA, a chemical company which produces chlorine-derivatives. There are 963,511 potentially affected people (local population of Pontevedra). These companies were supposed to leave the river by 2018, but the Spanish government extended the permission to stay for another 75 years.