EPAL is the oldest and largest water supply company in Portugal, constituting the reference company within the water sector in Portugal. Founded in 1868 as CAL - Companhia das Águas de Lisboa, a privately owned concession to supply water to Lisbon, it became a State owned company in 1974, named EPAL. Since 1991, EPAL is a public limited company, wholly owned by Águas de Portugal group.
EPAL provides drinking water to 2.6 million people (about one-quarter of the Portuguese population) in 26 municipalities, including Lisbon, covering a region of around 5.4 km2. With approximately 800 staff, EPAL has assets with a net fixed value of more than 700 million EUR and a capital expenditure program of more than 170 million EUR planned during 2009-2011.