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Athens tapping   water from 150 km away

Athens is located on the Attica peninsula in the   central-southern part of Greece. Most of Attica’s water resources are not   available for potable use. Surface sources are buried under concrete and   groundwater aquifers are polluted (under the city) or salinised (those on the   coast).

To obtain its water supply, Athens has resorted to a   number of surface hydraulic works and transfers. The main water source for   the city is the artificial reservoir at the Mornos river (built in 1980)   which is supplemented by a regulating reservoir at the Evinos river (2002).   The older branch of the hydrosystem consists of the pumping station drawing   at Lake Yliki (installed in 1958) and a number of boreholes in its vicinity   and along the conveyance aqueduct. The first artificial reservoir for the   city, the Marathon reservoir (built in 1928), now serves for storage and   regulation of network supply (Kallis & Coccossis, 2002).

The rivers and lakes from which water is extracted to   supply Athens are situated at fairly long distances. The Marathon Reservoir   lies approximately 42 km away from the centre of Athens, while the Mornos   Reservoir (main current water supply source) is at 150 km northwest of the   city.