• The results indicate that only a combined modelling strategy considering deterministic and stochastic distribution of effective parameters will allow to perform large-scale predictive modelling
  
   
• Such an approach prerequisites the development of a corresponding numerical code
  
   
• The up-scaling of the effective parameter set which was evaluated from the small and intermediate scale (e.g. spatial variance and correlation length of permeability and bulk porosity) remains uncertain
  
   
• To overcome this lack more large scale hydrogeological investigations are necessary
  
   
• Non linear sorption and desorption kinetics combined with chemical reaction characterise the near field of a source, whereas, in the far field the matrix diffusion and the KD concept will ensure a sufficient prediction capability.
  
   

Effective Field Parameters (EFP)