Index: Riskeer/MacroStabilityInwards/src/Riskeer.MacroStabilityInwards.KernelWrapper/Kernels/UpliftVan/UpliftVanKernelWrapper.cs
===================================================================
diff -u -rca9e457de56679e8bdbba7953235b02543cbfac3 -r6bc65102a16d453d3e9f031aac2827130eef2b38
--- Riskeer/MacroStabilityInwards/src/Riskeer.MacroStabilityInwards.KernelWrapper/Kernels/UpliftVan/UpliftVanKernelWrapper.cs	(.../UpliftVanKernelWrapper.cs)	(revision ca9e457de56679e8bdbba7953235b02543cbfac3)
+++ Riskeer/MacroStabilityInwards/src/Riskeer.MacroStabilityInwards.KernelWrapper/Kernels/UpliftVan/UpliftVanKernelWrapper.cs	(.../UpliftVanKernelWrapper.cs)	(revision 6bc65102a16d453d3e9f031aac2827130eef2b38)
@@ -98,17 +98,18 @@
 
         public void SetSoilProfile(SoilProfile2D soilProfile)
         {
-            kernelModel.StabilityModel.ConstructionStages.ForEachElementDo(cs => cs.SoilProfile = soilProfile);
+            GetDailyConstructionStage().SoilProfile = soilProfile;
+            GetExtremeConstructionStage().SoilProfile = soilProfile;
         }
 
         public void SetWaternetDaily(WtiStabilityWaternet waternetDaily)
         {
-            kernelModel.StabilityModel.ConstructionStages.First().GeotechnicsData.CurrentWaternet = waternetDaily;
+            GetDailyConstructionStage().GeotechnicsData.CurrentWaternet = waternetDaily;
         }
 
         public void SetWaternetExtreme(WtiStabilityWaternet waternetExtreme)
         {
-            kernelModel.StabilityModel.ConstructionStages.ElementAt(1).GeotechnicsData.CurrentWaternet = waternetExtreme;
+            GetExtremeConstructionStage().GeotechnicsData.CurrentWaternet = waternetExtreme;
         }
 
         public void SetMoveGrid(bool moveGrid)
@@ -152,18 +153,12 @@
 
         public void SetFixedSoilStresses(IEnumerable<FixedSoilStress> soilStresses)
         {
-            kernelModel.StabilityModel.ConstructionStages.ForEachElementDo(cs =>
-            {
-                cs.SoilStresses.AddRange(soilStresses);
-            });
+            GetDailyConstructionStage().SoilStresses.AddRange(soilStresses);
         }
 
         public void SetPreConsolidationStresses(IEnumerable<PreConsolidationStress> preConsolidationStresses)
         {
-            kernelModel.StabilityModel.ConstructionStages.ForEachElementDo(cs =>
-            {
-                cs.PreconsolidationStresses.AddRange(preConsolidationStresses);
-            });
+            GetDailyConstructionStage().PreconsolidationStresses.AddRange(preConsolidationStresses);
         }
 
         public void SetAutomaticForbiddenZones(bool automaticForbiddenZones)
@@ -203,6 +198,16 @@
             }
         }
 
+        private ConstructionStage GetDailyConstructionStage()
+        {
+            return kernelModel.StabilityModel.ConstructionStages.First();
+        }
+
+        private ConstructionStage GetExtremeConstructionStage()
+        {
+            return kernelModel.StabilityModel.ConstructionStages.ElementAt(1);
+        }
+
         /// <summary>
         /// Pre processes the <see cref="StabilityModel"/>.
         /// </summary>
Index: Riskeer/MacroStabilityInwards/test/Riskeer.MacroStabilityInwards.KernelWrapper.Test/Kernels/UpliftVan/UpliftVanKernelWrapperTest.cs
===================================================================
diff -u -re2da467f67f436ca9923eb99821e3750d72c9cc1 -r6bc65102a16d453d3e9f031aac2827130eef2b38
--- Riskeer/MacroStabilityInwards/test/Riskeer.MacroStabilityInwards.KernelWrapper.Test/Kernels/UpliftVan/UpliftVanKernelWrapperTest.cs	(.../UpliftVanKernelWrapperTest.cs)	(revision e2da467f67f436ca9923eb99821e3750d72c9cc1)
+++ Riskeer/MacroStabilityInwards/test/Riskeer.MacroStabilityInwards.KernelWrapper.Test/Kernels/UpliftVan/UpliftVanKernelWrapperTest.cs	(.../UpliftVanKernelWrapperTest.cs)	(revision 6bc65102a16d453d3e9f031aac2827130eef2b38)
@@ -272,9 +272,12 @@
                 Assert.AreEqual(1, constructionStage.MultiplicationFactorsCPhiForUpliftList.Count);
                 Assert.AreEqual(1.2, constructionStage.MultiplicationFactorsCPhiForUpliftList[0].UpliftFactor);
                 Assert.AreEqual(0.0, constructionStage.MultiplicationFactorsCPhiForUpliftList[0].MultiplicationFactor);
-                CollectionAssert.AreEqual(fixedSoilStresses, constructionStage.SoilStresses);
-                CollectionAssert.AreEqual(preConsolidationStresses, constructionStage.PreconsolidationStresses);
             }
+
+            CollectionAssert.AreEqual(fixedSoilStresses, constructionStages.First().SoilStresses);
+            CollectionAssert.AreEqual(preConsolidationStresses, constructionStages.First().PreconsolidationStresses);
+            CollectionAssert.IsEmpty(constructionStages.Last().SoilStresses);
+            CollectionAssert.IsEmpty(constructionStages.Last().PreconsolidationStresses);
         }
 
         private static UpliftVanKernelWrapper CreateValidKernel(Soil soil)