## Example of the numerical model at Bratislava, Airport, Slovak Republic

In this case numerical modelling provides a background that enables the company to continue with the remediation works that eliminate the transport of pollutants in the airport area and at the same time they decrease the pollution at the source. Due to hydrogeological properties and the incomplete underground sealing wall, a 3D model is necessary. The 3D model of a groundwater flow uses the BEM and a model of the transport of pollution uses the DRM method.