The path of the water

Drinking water becomes waste water after use. Before this used water can be returned to nature, it must be safely drained from the houses and cleaned.

See mit Bäumen

Water Cycle

Where does our Drinking Water come from?

Klärwerk Ruhleben

Pumping Stations and Sewage Treatment Plants

How wastewater is cleaned before it flows back into the bodies of water.

Abwasserkanal

Sewer System


In the Underground World of Berlin, there are wastewater sewers with an approximately length of 10,900 kilometres. 

Müggelsee

Waste Water Cycle

Six wastewater treatment plants clean sewage from Berlin and the surrounding regions

Klärwerk

Waste: a Valuable Resource

 While environmentally friendly cleaning used to be the primary focus, the recovery of energy and raw materials from wastewater is becoming increasingly important.