About 75 % of Berlin's drinking water is bank filtrate or artificially recharged groundwater. At the same time, Berlin's treated wastewater is being discharged partially upstream of bank filtration sites.
ZIEGLER, D.H. (2001): Untersuchungen zur nachhaltigen Wirkung der Uferfiltration im Wasserkreislauf Berlin. Dissertation. Berlin: Fakultät III - Prozesswirtschaften der Technischen Universität BerlinLanguage: German