Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProject.cs
===================================================================
diff -u -r1514 -r1540
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProject.cs	(.../DamProject.cs)	(revision 1514)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProject.cs	(.../DamProject.cs)	(revision 1540)
@@ -395,7 +395,7 @@
                 // read list from old DB and put them in a dictonary by name
                 var soilList = geoDatabase.ReadSoils(dike.SoilList.Soils);
                 Dictionary<string, Soil> soils = soilList.Soils.ToDictionary(s => s.Name);
-
+                CleanDikeAquiferDictionary(dike);
                 foreach (Soil soil in dike.SoilList.Soils)
                 {
                     var newSoil = soils[soil.Name];
@@ -420,6 +420,20 @@
             }
         }
 
+        private static void CleanDikeAquiferDictionary(Dike dike)
+        {
+            var newDict = new Dictionary<Soil, bool>();
+            foreach (var soil in dike.SoilList.Soils)
+            {
+                if (dike.SoilList.AquiferDictionary.ContainsKey(soil))
+                {
+                    newDict[soil] = dike.SoilList.AquiferDictionary[soil];
+                }
+            }
+            dike.SoilList.AquiferDictionary.Clear();
+            dike.SoilList.AquiferDictionary = newDict;            
+        }
+
         /// <summary>
         /// Update soil database references:
         /// Soildatabase should always be in the project path