The Lempa river is the most important river in El Salvador. A recent study showed that the Lempa is less and less fit for human consumption, for its high level of bacteriums. Added to this threat there are the ramifications of drought. In 2016, the country stated for the first time an hydraulic emergency. Besides the climate change, the current pollution, the mining and other industrial activities from El Salvador and neighbouring countries (Guatemala, Honduras) are pointed.
On March, the Salvadorian parliament voted a ley banning the mineral mining to preserve the water in this little country.