Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/Merge/AssessmentSectionMergeHandlerTest.cs
===================================================================
diff -u -r4c0cc92421b1790567779ec2ece30570a3a36ec5 -r6c024cb346f6f7f497a596ec3f1193dce605d6ba
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/Merge/AssessmentSectionMergeHandlerTest.cs	(.../AssessmentSectionMergeHandlerTest.cs)	(revision 4c0cc92421b1790567779ec2ece30570a3a36ec5)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/Merge/AssessmentSectionMergeHandlerTest.cs	(.../AssessmentSectionMergeHandlerTest.cs)	(revision 6c024cb346f6f7f497a596ec3f1193dce605d6ba)
@@ -444,14 +444,11 @@
             };
 
             AssessmentSection targetAssessmentSection = CreateAssessmentSection(targetLocations);
-            AssessmentSection sourceAssessmentSection = CreateAssessmentSection(sourceLocations);
+            AssessmentSection sourceAssessmentSection = CreateAssessmentSection(sourceLocations, 0.01);
 
             targetAssessmentSection.WaterLevelCalculationsForUserDefinedTargetProbabilities.Attach(observer);
             targetAssessmentSection.WaveHeightCalculationsForUserDefinedTargetProbabilities.Attach(observer);
 
-            sourceAssessmentSection.WaterLevelCalculationsForUserDefinedTargetProbabilities[0].TargetProbability = 0.01;
-            sourceAssessmentSection.WaveHeightCalculationsForUserDefinedTargetProbabilities[0].TargetProbability = 0.01;
-
             // When
             handler.PerformMerge(targetAssessmentSection, new AssessmentSectionMergeData(
                                      sourceAssessmentSection,
@@ -482,18 +479,18 @@
             mocks.VerifyAll();
         }
 
-        private static AssessmentSection CreateAssessmentSection(HydraulicBoundaryLocation[] locations)
+        private static AssessmentSection CreateAssessmentSection(HydraulicBoundaryLocation[] locations, double targetProbability = 0.1)
         {
             var assessmentSection = new AssessmentSection(AssessmentSectionComposition.Dike);
-            assessmentSection.WaterLevelCalculationsForUserDefinedTargetProbabilities.Add(new HydraulicBoundaryLocationCalculationsForTargetProbability(0.1)
+            assessmentSection.WaterLevelCalculationsForUserDefinedTargetProbabilities.Add(new HydraulicBoundaryLocationCalculationsForTargetProbability(targetProbability)
             {
                 HydraulicBoundaryLocationCalculations =
                 {
                     new HydraulicBoundaryLocationCalculation(locations[0])
                 }
             });
 
-            assessmentSection.WaveHeightCalculationsForUserDefinedTargetProbabilities.Add(new HydraulicBoundaryLocationCalculationsForTargetProbability(0.1)
+            assessmentSection.WaveHeightCalculationsForUserDefinedTargetProbabilities.Add(new HydraulicBoundaryLocationCalculationsForTargetProbability(targetProbability)
             {
                 HydraulicBoundaryLocationCalculations =
                 {
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/WaterLevelCalculationsForUserDefinedTargetProbabilityContextTreeNodeInfoTest.cs
===================================================================
diff -u -rd8ec9b8eec266efcbd1044008022bcf5171efb31 -r6c024cb346f6f7f497a596ec3f1193dce605d6ba
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/WaterLevelCalculationsForUserDefinedTargetProbabilityContextTreeNodeInfoTest.cs	(.../WaterLevelCalculationsForUserDefinedTargetProbabilityContextTreeNodeInfoTest.cs)	(revision d8ec9b8eec266efcbd1044008022bcf5171efb31)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/WaterLevelCalculationsForUserDefinedTargetProbabilityContextTreeNodeInfoTest.cs	(.../WaterLevelCalculationsForUserDefinedTargetProbabilityContextTreeNodeInfoTest.cs)	(revision 6c024cb346f6f7f497a596ec3f1193dce605d6ba)
@@ -549,9 +549,8 @@
 
             const double targetProbability = 0.01;
 
-            var context = new WaterLevelCalculationsForUserDefinedTargetProbabilityContext(new HydraulicBoundaryLocationCalculationsForTargetProbability(0.1)
+            var context = new WaterLevelCalculationsForUserDefinedTargetProbabilityContext(new HydraulicBoundaryLocationCalculationsForTargetProbability(targetProbability)
                                                                                            {
-                                                                                               TargetProbability = targetProbability,
                                                                                                HydraulicBoundaryLocationCalculations =
                                                                                                {
                                                                                                    new HydraulicBoundaryLocationCalculation(hydraulicBoundaryLocation)
@@ -634,9 +633,8 @@
 
             var hydraulicBoundaryLocation = new TestHydraulicBoundaryLocation("locationName");
 
-            var context = new WaterLevelCalculationsForUserDefinedTargetProbabilityContext(new HydraulicBoundaryLocationCalculationsForTargetProbability(0.1)
+            var context = new WaterLevelCalculationsForUserDefinedTargetProbabilityContext(new HydraulicBoundaryLocationCalculationsForTargetProbability(targetProbability)
                                                                                            {
-                                                                                               TargetProbability = targetProbability,
                                                                                                HydraulicBoundaryLocationCalculations =
                                                                                                {
                                                                                                    new HydraulicBoundaryLocationCalculation(hydraulicBoundaryLocation)
@@ -718,9 +716,8 @@
 
             const double targetProbability = 0.01;
 
-            var context = new WaterLevelCalculationsForUserDefinedTargetProbabilityContext(new HydraulicBoundaryLocationCalculationsForTargetProbability(0.1)
+            var context = new WaterLevelCalculationsForUserDefinedTargetProbabilityContext(new HydraulicBoundaryLocationCalculationsForTargetProbability(targetProbability)
                                                                                            {
-                                                                                               TargetProbability = targetProbability,
                                                                                                HydraulicBoundaryLocationCalculations =
                                                                                                {
                                                                                                    new HydraulicBoundaryLocationCalculation(hydraulicBoundaryLocation)
@@ -794,9 +791,8 @@
 
             var calculation = new HydraulicBoundaryLocationCalculation(new TestHydraulicBoundaryLocation("locationName"));
 
-            var context = new WaterLevelCalculationsForUserDefinedTargetProbabilityContext(new HydraulicBoundaryLocationCalculationsForTargetProbability(0.1)
+            var context = new WaterLevelCalculationsForUserDefinedTargetProbabilityContext(new HydraulicBoundaryLocationCalculationsForTargetProbability(0.01)
                                                                                            {
-                                                                                               TargetProbability = 0.01,
                                                                                                HydraulicBoundaryLocationCalculations =
                                                                                                {
                                                                                                    calculation