Index: Riskeer/Integration/src/Riskeer.Integration.Plugin/RiskeerPlugin.cs
===================================================================
diff -u -rc96fb56602a4b48d007208923213ab5efa09699f -r9db0ef475c732008dc2ecda3a485e4f933b704fc
--- Riskeer/Integration/src/Riskeer.Integration.Plugin/RiskeerPlugin.cs	(.../RiskeerPlugin.cs)	(revision c96fb56602a4b48d007208923213ab5efa09699f)
+++ Riskeer/Integration/src/Riskeer.Integration.Plugin/RiskeerPlugin.cs	(.../RiskeerPlugin.cs)	(revision 9db0ef475c732008dc2ecda3a485e4f933b704fc)
@@ -1038,7 +1038,8 @@
 
             yield return new TreeNodeInfo<WaterLevelCalculationsForUserDefinedTargetProbabilityContext>
             {
-                Text = context => noProbabilityValueDoubleConverter.ConvertToString(context.WrappedData.TargetProbability),
+                Text = context => CalculationsDisplayNameHelper.GetUniqueDisplayNameForWaterLevelCalculations(context.AssessmentSection,
+                                                                                                              context.WrappedData.HydraulicBoundaryLocationCalculations),
                 Image = context => RiskeerCommonFormsResources.GenericInputOutputIcon,
                 EnsureVisibleOnCreate = (context, o) => true,
                 OnRemoveConfirmationText = context => Resources.RiskeerPlugin_GetTreeNodeInfos_Confirm_remove_TargetProbability,
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/WaterLevelCalculationsForUserDefinedTargetProbabilityContextTreeNodeInfoTest.cs
===================================================================
diff -u -r7e6c0b97836346830f6d1d4ffea8df72695710cc -r9db0ef475c732008dc2ecda3a485e4f933b704fc
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/WaterLevelCalculationsForUserDefinedTargetProbabilityContextTreeNodeInfoTest.cs	(.../WaterLevelCalculationsForUserDefinedTargetProbabilityContextTreeNodeInfoTest.cs)	(revision 7e6c0b97836346830f6d1d4ffea8df72695710cc)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/WaterLevelCalculationsForUserDefinedTargetProbabilityContextTreeNodeInfoTest.cs	(.../WaterLevelCalculationsForUserDefinedTargetProbabilityContextTreeNodeInfoTest.cs)	(revision 9db0ef475c732008dc2ecda3a485e4f933b704fc)
@@ -42,6 +42,7 @@
 using Rhino.Mocks;
 using Riskeer.Common.Data.AssessmentSection;
 using Riskeer.Common.Data.Calculation;
+using Riskeer.Common.Data.Contribution;
 using Riskeer.Common.Data.Hydraulics;
 using Riskeer.Common.Data.TestUtil;
 using Riskeer.Common.Data.TestUtil.IllustrationPoints;
@@ -105,13 +106,35 @@
         }
 
         [Test]
-        public void Text_WithContext_ReturnsFormattedTargetProbability()
+        [TestCase(0.1, 0.01, 0.025, 0.0025, "1/400")]
+        [TestCase(0.1, 0.01, 0.0025, 0.0025, "1/400 (2)")]
+        [TestCase(0.1, 0.0025, 0.025, 0.0025, "1/400 (2)")]
+        [TestCase(0.0025, 0.00025, 0.025, 0.0025, "1/400 (2)")]
+        [TestCase(0.0025, 0.0025, 0.025, 0.0025, "1/400 (3)")]
+        [TestCase(0.0025, 0.0025, 0.0025, 0.0025, "1/400 (4)")]
+        public void Text_WithContext_ReturnsUniquelyFormattedTargetProbability(double lowerLimitNorm, double signalingNorm,
+                                                                               double userDefinedTargetProbability1,
+                                                                               double userDefinedTargetProbability2,
+                                                                               string expectedText)
         {
             // Setup
+            var calculationsForTargetProbability = new HydraulicBoundaryLocationCalculationsForTargetProbability(userDefinedTargetProbability2);
+
             IAssessmentSection assessmentSection = AssessmentSectionTestHelper.CreateAssessmentSectionStub(mockRepository);
+
+            assessmentSection.Stub(a => a.FailureMechanismContribution).Return(new FailureMechanismContribution(lowerLimitNorm, signalingNorm));
+            assessmentSection.Stub(a => a.WaterLevelCalculationsForLowerLimitNorm).Return(new ObservableList<HydraulicBoundaryLocationCalculation>());
+            assessmentSection.Stub(a => a.WaterLevelCalculationsForSignalingNorm).Return(new ObservableList<HydraulicBoundaryLocationCalculation>());
+            assessmentSection.Stub(a => a.WaterLevelCalculationsForUserDefinedTargetProbabilities).Return(
+                new ObservableList<HydraulicBoundaryLocationCalculationsForTargetProbability>
+                {
+                    new HydraulicBoundaryLocationCalculationsForTargetProbability(userDefinedTargetProbability1),
+                    calculationsForTargetProbability
+                });
+
             mockRepository.ReplayAll();
 
-            var context = new WaterLevelCalculationsForUserDefinedTargetProbabilityContext(new HydraulicBoundaryLocationCalculationsForTargetProbability(0.01),
+            var context = new WaterLevelCalculationsForUserDefinedTargetProbabilityContext(calculationsForTargetProbability,
                                                                                            assessmentSection);
 
             using (var plugin = new RiskeerPlugin())
@@ -122,7 +145,7 @@
                 string text = info.Text(context);
 
                 // Assert
-                Assert.AreEqual("1/100", text);
+                Assert.AreEqual(expectedText, text);
             }
 
             mockRepository.VerifyAll();