Index: Riskeer/Integration/src/Riskeer.Integration.Plugin/Merge/AssessmentSectionMergeHandler.cs
===================================================================
diff -u -rae19a21d64c4d6466f0e8e6d6d23225aaca8e0ec -rb3687b70a3ff1795a2b1867bbc273f0b06fc3cac
--- Riskeer/Integration/src/Riskeer.Integration.Plugin/Merge/AssessmentSectionMergeHandler.cs	(.../AssessmentSectionMergeHandler.cs)	(revision ae19a21d64c4d6466f0e8e6d6d23225aaca8e0ec)
+++ Riskeer/Integration/src/Riskeer.Integration.Plugin/Merge/AssessmentSectionMergeHandler.cs	(.../AssessmentSectionMergeHandler.cs)	(revision b3687b70a3ff1795a2b1867bbc273f0b06fc3cac)
@@ -284,7 +284,6 @@
             if (mergeData.MergeGrassCoverErosionOutwards)
             {
                 targetAssessmentSection.GrassCoverErosionOutwards = sourceAssessmentSection.GrassCoverErosionOutwards;
-                UpdateLocationCalculationHydraulicBoundaryLocationReferences(targetAssessmentSection.GrassCoverErosionOutwards, hydraulicBoundaryLocations);
                 UpdateCalculationHydraulicBoundaryLocationReferences<GrassCoverErosionOutwardsFailureMechanism, GrassCoverErosionOutwardsWaveConditionsCalculation, GrassCoverErosionOutwardsWaveConditionsInput>(
                     targetAssessmentSection.GrassCoverErosionOutwards, hydraulicBoundaryLocations);
                 LogMergeMessage(targetAssessmentSection.GrassCoverErosionOutwards);
@@ -377,39 +376,6 @@
             return locations.Single(l => l.Name == location.Name && l.Id == location.Id && l.Location.Equals(location.Location));
         }
 
-        private static void UpdateLocationCalculationHydraulicBoundaryLocationReferences(GrassCoverErosionOutwardsFailureMechanism targetFailureMechanism,
-                                                                                         IEnumerable<HydraulicBoundaryLocation> locations)
-        {
-            HydraulicBoundaryLocationCalculation[] oldWaterLevelForMechanismSpecificFactorizedSignalingNorm = targetFailureMechanism.WaterLevelCalculationsForMechanismSpecificFactorizedSignalingNorm.ToArray();
-            HydraulicBoundaryLocationCalculation[] oldWaterLevelForMechanismSpecificSignalingNorm = targetFailureMechanism.WaterLevelCalculationsForMechanismSpecificSignalingNorm.ToArray();
-            HydraulicBoundaryLocationCalculation[] oldWaterLevelForMechanismSpecificLowerLimitNorm = targetFailureMechanism.WaterLevelCalculationsForMechanismSpecificLowerLimitNorm.ToArray();
-            HydraulicBoundaryLocationCalculation[] oldWaveHeightForMechanismSpecificFactorizedSignalingNorm = targetFailureMechanism.WaveHeightCalculationsForMechanismSpecificFactorizedSignalingNorm.ToArray();
-            HydraulicBoundaryLocationCalculation[] oldWaveHeightForMechanismSpecificSignalingNorm = targetFailureMechanism.WaveHeightCalculationsForMechanismSpecificSignalingNorm.ToArray();
-            HydraulicBoundaryLocationCalculation[] oldWaveHeightForMechanismSpecificLowerLimitNorm = targetFailureMechanism.WaveHeightCalculationsForMechanismSpecificLowerLimitNorm.ToArray();
-            targetFailureMechanism.SetHydraulicBoundaryLocationCalculations(locations);
-
-            ReplaceHydraulicBoundaryLocationCalculationData(oldWaterLevelForMechanismSpecificFactorizedSignalingNorm, targetFailureMechanism.WaterLevelCalculationsForMechanismSpecificFactorizedSignalingNorm);
-            ReplaceHydraulicBoundaryLocationCalculationData(oldWaterLevelForMechanismSpecificSignalingNorm, targetFailureMechanism.WaterLevelCalculationsForMechanismSpecificSignalingNorm);
-            ReplaceHydraulicBoundaryLocationCalculationData(oldWaterLevelForMechanismSpecificLowerLimitNorm, targetFailureMechanism.WaterLevelCalculationsForMechanismSpecificLowerLimitNorm);
-
-            ReplaceHydraulicBoundaryLocationCalculationData(oldWaveHeightForMechanismSpecificFactorizedSignalingNorm, targetFailureMechanism.WaveHeightCalculationsForMechanismSpecificFactorizedSignalingNorm);
-            ReplaceHydraulicBoundaryLocationCalculationData(oldWaveHeightForMechanismSpecificSignalingNorm, targetFailureMechanism.WaveHeightCalculationsForMechanismSpecificSignalingNorm);
-            ReplaceHydraulicBoundaryLocationCalculationData(oldWaveHeightForMechanismSpecificLowerLimitNorm, targetFailureMechanism.WaveHeightCalculationsForMechanismSpecificLowerLimitNorm);
-        }
-
-        private static void ReplaceHydraulicBoundaryLocationCalculationData(IEnumerable<HydraulicBoundaryLocationCalculation> oldCalculations,
-                                                                            IEnumerable<HydraulicBoundaryLocationCalculation> newCalculations)
-        {
-            for (var i = 0; i < newCalculations.Count(); i++)
-            {
-                HydraulicBoundaryLocationCalculation newCalculation = newCalculations.ElementAt(i);
-                HydraulicBoundaryLocationCalculation oldCalculation = oldCalculations.ElementAt(i);
-
-                newCalculation.InputParameters.ShouldIllustrationPointsBeCalculated = oldCalculation.InputParameters.ShouldIllustrationPointsBeCalculated;
-                newCalculation.Output = oldCalculation.Output;
-            }
-        }
-
         #endregion
     }
 }
\ No newline at end of file
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/Merge/AssessmentSectionMergeHandlerTest.cs
===================================================================
diff -u -rae19a21d64c4d6466f0e8e6d6d23225aaca8e0ec -rb3687b70a3ff1795a2b1867bbc273f0b06fc3cac
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/Merge/AssessmentSectionMergeHandlerTest.cs	(.../AssessmentSectionMergeHandlerTest.cs)	(revision ae19a21d64c4d6466f0e8e6d6d23225aaca8e0ec)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/Merge/AssessmentSectionMergeHandlerTest.cs	(.../AssessmentSectionMergeHandlerTest.cs)	(revision b3687b70a3ff1795a2b1867bbc273f0b06fc3cac)
@@ -323,13 +323,6 @@
                 }
             });
 
-            HydraulicBoundaryLocationCalculation[] sourceWaterLevelForMechanismSpecificFactorizedSignalingNorm = sourceAssessmentSection.GrassCoverErosionOutwards.WaterLevelCalculationsForMechanismSpecificFactorizedSignalingNorm.ToArray();
-            HydraulicBoundaryLocationCalculation[] sourceWaterLevelForMechanismSpecificSignalingNorm = sourceAssessmentSection.GrassCoverErosionOutwards.WaterLevelCalculationsForMechanismSpecificSignalingNorm.ToArray();
-            HydraulicBoundaryLocationCalculation[] sourceWaterLevelForMechanismSpecificLowerLimitNorm = sourceAssessmentSection.GrassCoverErosionOutwards.WaterLevelCalculationsForMechanismSpecificLowerLimitNorm.ToArray();
-            HydraulicBoundaryLocationCalculation[] sourceWaveHeightForMechanismSpecificFactorizedSignalingNorm = sourceAssessmentSection.GrassCoverErosionOutwards.WaveHeightCalculationsForMechanismSpecificFactorizedSignalingNorm.ToArray();
-            HydraulicBoundaryLocationCalculation[] sourceWaveHeightForMechanismSpecificSignalingNorm = sourceAssessmentSection.GrassCoverErosionOutwards.WaveHeightCalculationsForMechanismSpecificSignalingNorm.ToArray();
-            HydraulicBoundaryLocationCalculation[] sourceWaveHeightForMechanismSpecificLowerLimitNorm = sourceAssessmentSection.GrassCoverErosionOutwards.WaveHeightCalculationsForMechanismSpecificLowerLimitNorm.ToArray();
-
             // When
             handler.PerformMerge(targetAssessmentSection, new AssessmentSectionMergeData(
                                      sourceAssessmentSection,
@@ -373,26 +366,6 @@
 
             var grassOutwardsCalculation = (GrassCoverErosionOutwardsWaveConditionsCalculation) targetAssessmentSection.GrassCoverErosionOutwards.Calculations.Single();
             Assert.AreSame(targetLocations[0], grassOutwardsCalculation.InputParameters.HydraulicBoundaryLocation);
-
-            AssertHydraulicBoundaryCalculations(sourceWaterLevelForMechanismSpecificFactorizedSignalingNorm,
-                                                targetAssessmentSection.GrassCoverErosionOutwards.WaterLevelCalculationsForMechanismSpecificFactorizedSignalingNorm,
-                                                targetLocations);
-            AssertHydraulicBoundaryCalculations(sourceWaterLevelForMechanismSpecificSignalingNorm,
-                                                targetAssessmentSection.GrassCoverErosionOutwards.WaterLevelCalculationsForMechanismSpecificSignalingNorm,
-                                                targetLocations);
-            AssertHydraulicBoundaryCalculations(sourceWaterLevelForMechanismSpecificLowerLimitNorm,
-                                                targetAssessmentSection.GrassCoverErosionOutwards.WaterLevelCalculationsForMechanismSpecificLowerLimitNorm,
-                                                targetLocations);
-
-            AssertHydraulicBoundaryCalculations(sourceWaveHeightForMechanismSpecificFactorizedSignalingNorm,
-                                                targetAssessmentSection.GrassCoverErosionOutwards.WaveHeightCalculationsForMechanismSpecificFactorizedSignalingNorm,
-                                                targetLocations);
-            AssertHydraulicBoundaryCalculations(sourceWaveHeightForMechanismSpecificSignalingNorm,
-                                                targetAssessmentSection.GrassCoverErosionOutwards.WaveHeightCalculationsForMechanismSpecificSignalingNorm,
-                                                targetLocations);
-            AssertHydraulicBoundaryCalculations(sourceWaveHeightForMechanismSpecificLowerLimitNorm,
-                                                targetAssessmentSection.GrassCoverErosionOutwards.WaveHeightCalculationsForMechanismSpecificLowerLimitNorm,
-                                                targetLocations);
         }
 
         [Test]