13 Truncated Plurigaussian Simulations to Characterize Aquifer Heterogeneity / G. Mariethoz, P. Renard, F. Cornaton, O. Jaquet 25 Using Semivariogram Parameter Uncertainty in Hydrogeological Applications / E. Pardo-Igúzquiza, M. Chica-Olmo, M.J. Garcia- Soldado, J.A. Luque-Espinar 35 Modeling Interaction of Fluid and Salt in an AquiferLagoon System /