In Nepal kam das für Wasserversorgung und Abwasser verantwortliche Department of Water Supply and Sewerage zu dem Schluss, dass 85 % seiner traditionellen Wasserversorgungssysteme schwerwiegend mit Bakterien, Eisen, Mangan und Ammoniak verseucht seien.
In Nepal, the Department of Water Supply and Sewerage has concluded that 85% of its traditional water-supply systems are seriously contaminated with bacteria, iron, manganese, and ammonia.