Index: Riskeer/MacroStabilityInwards/src/Riskeer.MacroStabilityInwards.CalculatedInput/Converters/SoilProfileConverter.cs
===================================================================
diff -u -r7416a5b8b704dba259475ca259a2ea54054f6dd4 -rf91b60465fec69cf14c1fa0f659393cc235b69e7
--- Riskeer/MacroStabilityInwards/src/Riskeer.MacroStabilityInwards.CalculatedInput/Converters/SoilProfileConverter.cs	(.../SoilProfileConverter.cs)	(revision 7416a5b8b704dba259475ca259a2ea54054f6dd4)
+++ Riskeer/MacroStabilityInwards/src/Riskeer.MacroStabilityInwards.CalculatedInput/Converters/SoilProfileConverter.cs	(.../SoilProfileConverter.cs)	(revision f91b60465fec69cf14c1fa0f659393cc235b69e7)
@@ -87,8 +87,8 @@
                                          UsePop = data.UsePop,
                                          IsAquifer = data.IsAquifer,
                                          ShearStrengthModel = ConvertShearStrengthModel(data.ShearStrengthModel),
-                                         AbovePhreaticLevel = data.AbovePhreaticLevel.Mean,
-                                         BelowPhreaticLevel = data.BelowPhreaticLevel.Mean,
+                                         AbovePhreaticLevel = MacroStabilityInwardsSemiProbabilisticDesignVariableFactory.GetAbovePhreaticLevel(data).GetDesignValue(),
+                                         BelowPhreaticLevel = MacroStabilityInwardsSemiProbabilisticDesignVariableFactory.GetBelowPhreaticLevel(data).GetDesignValue(),
                                          Cohesion = MacroStabilityInwardsSemiProbabilisticDesignVariableFactory.GetCohesion(data).GetDesignValue(),
                                          FrictionAngle = MacroStabilityInwardsSemiProbabilisticDesignVariableFactory.GetFrictionAngle(data).GetDesignValue(),
                                          ShearStrengthRatio = MacroStabilityInwardsSemiProbabilisticDesignVariableFactory.GetShearStrengthRatio(data).GetDesignValue(),
Index: Riskeer/MacroStabilityInwards/src/Riskeer.MacroStabilityInwards.IO/Factories/PersistableSoilCollectionFactory.cs
===================================================================
diff -u -r7416a5b8b704dba259475ca259a2ea54054f6dd4 -rf91b60465fec69cf14c1fa0f659393cc235b69e7
--- Riskeer/MacroStabilityInwards/src/Riskeer.MacroStabilityInwards.IO/Factories/PersistableSoilCollectionFactory.cs	(.../PersistableSoilCollectionFactory.cs)	(revision 7416a5b8b704dba259475ca259a2ea54054f6dd4)
+++ Riskeer/MacroStabilityInwards/src/Riskeer.MacroStabilityInwards.IO/Factories/PersistableSoilCollectionFactory.cs	(.../PersistableSoilCollectionFactory.cs)	(revision f91b60465fec69cf14c1fa0f659393cc235b69e7)
@@ -105,8 +105,8 @@
                 ShearStrengthRatioAndShearStrengthExponentCorrelated = false,
                 ShearStrengthModelTypeAbovePhreaticLevel = GetShearStrengthModelTypeForAbovePhreaticLevel(layerData.ShearStrengthModel),
                 ShearStrengthModelTypeBelowPhreaticLevel = GetShearStrengthModelTypeForBelowPhreaticLevel(layerData.ShearStrengthModel),
-                VolumetricWeightAbovePhreaticLevel = layerData.AbovePhreaticLevel.Mean,
-                VolumetricWeightBelowPhreaticLevel = layerData.BelowPhreaticLevel.Mean,
+                VolumetricWeightAbovePhreaticLevel = MacroStabilityInwardsSemiProbabilisticDesignVariableFactory.GetAbovePhreaticLevel(layerData).GetDesignValue(),
+                VolumetricWeightBelowPhreaticLevel = MacroStabilityInwardsSemiProbabilisticDesignVariableFactory.GetBelowPhreaticLevel(layerData).GetDesignValue(),
                 Dilatancy = 0,
                 DilatancyStochasticParameter = PersistableStochasticParameterFactory.Create(new VariationCoefficientNormalDistribution(2)
                 {
Index: Riskeer/MacroStabilityInwards/test/Riskeer.MacroStabilityInwards.CalculatedInput.Test/Converters/SoilProfileConverterTest.cs
===================================================================
diff -u -r7416a5b8b704dba259475ca259a2ea54054f6dd4 -rf91b60465fec69cf14c1fa0f659393cc235b69e7
--- Riskeer/MacroStabilityInwards/test/Riskeer.MacroStabilityInwards.CalculatedInput.Test/Converters/SoilProfileConverterTest.cs	(.../SoilProfileConverterTest.cs)	(revision 7416a5b8b704dba259475ca259a2ea54054f6dd4)
+++ Riskeer/MacroStabilityInwards/test/Riskeer.MacroStabilityInwards.CalculatedInput.Test/Converters/SoilProfileConverterTest.cs	(.../SoilProfileConverterTest.cs)	(revision f91b60465fec69cf14c1fa0f659393cc235b69e7)
@@ -44,10 +44,10 @@
         public void Convert_SoilProfileNull_ThrowsArgumentNullException()
         {
             // Call
-            void Call() => SoilProfileConverter.Convert(null);
+            TestDelegate call = () => SoilProfileConverter.Convert(null);
 
             // Assert
-            var exception = Assert.Throws<ArgumentNullException>(Call);
+            var exception = Assert.Throws<ArgumentNullException>(call);
             Assert.AreEqual("soilProfile", exception.ParamName);
         }
 
Index: Riskeer/MacroStabilityInwards/test/Riskeer.MacroStabilityInwards.CalculatedInput.TestUtil/CalculatorInputAssert.cs
===================================================================
diff -u -r7416a5b8b704dba259475ca259a2ea54054f6dd4 -rf91b60465fec69cf14c1fa0f659393cc235b69e7
--- Riskeer/MacroStabilityInwards/test/Riskeer.MacroStabilityInwards.CalculatedInput.TestUtil/CalculatorInputAssert.cs	(.../CalculatorInputAssert.cs)	(revision 7416a5b8b704dba259475ca259a2ea54054f6dd4)
+++ Riskeer/MacroStabilityInwards/test/Riskeer.MacroStabilityInwards.CalculatedInput.TestUtil/CalculatorInputAssert.cs	(.../CalculatorInputAssert.cs)	(revision f91b60465fec69cf14c1fa0f659393cc235b69e7)
@@ -133,8 +133,8 @@
                 Assert.AreEqual(WaterPressureInterpolationModel.Automatic, actual[i].WaterPressureInterpolationModel);
                 Assert.AreEqual(ConvertShearStrengthModel(expectedData.ShearStrengthModel), actual[i].ShearStrengthModel);
 
-                Assert.AreEqual(expectedData.AbovePhreaticLevel.Mean, actual[i].AbovePhreaticLevel);
-                Assert.AreEqual(expectedData.BelowPhreaticLevel.Mean, actual[i].BelowPhreaticLevel);
+                Assert.AreEqual(MacroStabilityInwardsSemiProbabilisticDesignVariableFactory.GetAbovePhreaticLevel(expectedData).GetDesignValue(), actual[i].AbovePhreaticLevel);
+                Assert.AreEqual(MacroStabilityInwardsSemiProbabilisticDesignVariableFactory.GetBelowPhreaticLevel(expectedData).GetDesignValue(), actual[i].BelowPhreaticLevel);
                 Assert.AreEqual(MacroStabilityInwardsSemiProbabilisticDesignVariableFactory.GetCohesion(expectedData).GetDesignValue(), actual[i].Cohesion);
                 Assert.AreEqual(MacroStabilityInwardsSemiProbabilisticDesignVariableFactory.GetFrictionAngle(expectedData).GetDesignValue(), actual[i].FrictionAngle);
                 Assert.AreEqual(MacroStabilityInwardsSemiProbabilisticDesignVariableFactory.GetStrengthIncreaseExponent(expectedData).GetDesignValue(), actual[i].StrengthIncreaseExponent);
Index: Riskeer/MacroStabilityInwards/test/Riskeer.MacroStabilityInwards.IO.TestUtil/PersistableDataModelTestHelper.cs
===================================================================
diff -u -r7416a5b8b704dba259475ca259a2ea54054f6dd4 -rf91b60465fec69cf14c1fa0f659393cc235b69e7
--- Riskeer/MacroStabilityInwards/test/Riskeer.MacroStabilityInwards.IO.TestUtil/PersistableDataModelTestHelper.cs	(.../PersistableDataModelTestHelper.cs)	(revision 7416a5b8b704dba259475ca259a2ea54054f6dd4)
+++ Riskeer/MacroStabilityInwards/test/Riskeer.MacroStabilityInwards.IO.TestUtil/PersistableDataModelTestHelper.cs	(.../PersistableDataModelTestHelper.cs)	(revision f91b60465fec69cf14c1fa0f659393cc235b69e7)
@@ -178,8 +178,8 @@
                 Assert.AreEqual(MacroStabilityInwardsSemiProbabilisticDesignVariableFactory.GetStrengthIncreaseExponent(layerData).GetDesignValue(), soil.StrengthIncreaseExponent);
                 AssertStochasticParameter(layerData.StrengthIncreaseExponent, soil.StrengthIncreaseExponentStochasticParameter);
 
-                Assert.AreEqual(layerData.AbovePhreaticLevel.Mean, soil.VolumetricWeightAbovePhreaticLevel);
-                Assert.AreEqual(layerData.BelowPhreaticLevel.Mean, soil.VolumetricWeightBelowPhreaticLevel);
+                Assert.AreEqual(MacroStabilityInwardsSemiProbabilisticDesignVariableFactory.GetAbovePhreaticLevel(layerData).GetDesignValue(), soil.VolumetricWeightAbovePhreaticLevel);
+                Assert.AreEqual(MacroStabilityInwardsSemiProbabilisticDesignVariableFactory.GetBelowPhreaticLevel(layerData).GetDesignValue(), soil.VolumetricWeightBelowPhreaticLevel);
 
                 Assert.IsFalse(soil.CohesionAndFrictionAngleCorrelated);
                 Assert.IsFalse(soil.ShearStrengthRatioAndShearStrengthExponentCorrelated);