EN
This dissertation is a trace elements (cadmium, lead, copper, zinc and nickel) analysis in oligocene water intake in Warsow distric Ursynów. The series of aquifers have got stable physical and chemical composition of waters. Oligocene water is also distinguished by god quality. Hydrogeomorphology of the Mazovian Basin directly infl uence on geochemical background. This correlation is a reason for analysing trace elements in oligocene water. Trace elements analysis were taken by atomic absorption spectrometry methods. The analysis showed that contentration of this elements were in the right ballpark standard. Due to huge meaning of oligocene water, it needs continued protection and regular inspections.