The city of Valdivia obtains most of its water supply from Calle-Calle River near Cuesta Soto. Decreasing precipitation has caused the river to be contaminated with saline water from the coast.
The city of Valdivia gets most of its water from the nearby Calle-Calle River at Cuesta Soto. Due to decreased rainfall, the river is now contaminated with saltwater from the ocean.