On the other hand, failure of the aquifer State of origin to exercise due diligence in reducing the pollution to acceptable levels would entitle the affected State to claim that the State of origin had breached its obligation to do so.
另一方面，如制造污染的含水层国未能作出应有的努力将污染减少到可以接受的水平，则受害国有权宣布污染国违反了其应尽的义务。