Index: Ringtoets/Integration/src/Ringtoets.Integration.Service/RingtoetsDataSynchronizationService.cs
===================================================================
diff -u -r3d995a76fbe93cf9801596e6b959e7f5bcde5805 -rebf9ee4894ed003e5756d9c56be1489d54e57695
--- Ringtoets/Integration/src/Ringtoets.Integration.Service/RingtoetsDataSynchronizationService.cs	(.../RingtoetsDataSynchronizationService.cs)	(revision 3d995a76fbe93cf9801596e6b959e7f5bcde5805)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Service/RingtoetsDataSynchronizationService.cs	(.../RingtoetsDataSynchronizationService.cs)	(revision ebf9ee4894ed003e5756d9c56be1489d54e57695)
@@ -27,6 +27,8 @@
 using Ringtoets.Common.Data.Calculation;
 using Ringtoets.GrassCoverErosionInwards.Data;
 using Ringtoets.GrassCoverErosionInwards.Service;
+using Ringtoets.GrassCoverErosionOutwards.Data;
+using Ringtoets.GrassCoverErosionOutwards.Service;
 using Ringtoets.HeightStructures.Data;
 using Ringtoets.HeightStructures.Service;
 using Ringtoets.HydraRing.Data;
@@ -121,17 +123,29 @@
         /// Clears the output of the hydraulic boundary locations within the <see cref="HydraulicBoundaryDatabase"/>.
         /// </summary>
         /// <param name="hydraulicBoundaryDatabase">The <see cref="HydraulicBoundaryDatabase"/> wich contains the locations.</param>
+        /// <param name="assessmentSection">The <see cref="IAssessmentSection"/> which contains the locations of the failure mechanisms.</param>
         /// <returns><c>true</c> when one or multiple locations are affected by clearing the output. <c>false</c> otherwise.</returns>
         /// <exception cref="ArgumentNullException">Thrown when <paramref name="hydraulicBoundaryDatabase"/> is <c>null</c>.</exception>
-        public static bool ClearHydraulicBoundaryLocationOutput(HydraulicBoundaryDatabase hydraulicBoundaryDatabase)
+        public static bool ClearHydraulicBoundaryLocationOutput(HydraulicBoundaryDatabase hydraulicBoundaryDatabase, IAssessmentSection assessmentSection)
         {
             if (hydraulicBoundaryDatabase == null)
             {
                 throw new ArgumentNullException("hydraulicBoundaryDatabase");
             }
+            if (assessmentSection == null)
+            {
+                throw new ArgumentNullException("assessmentSection");
+            }
 
-            var locationAffected = false;
+            var locationsAffected = false;
 
+            var failureMechanism = assessmentSection.GetFailureMechanisms().First(fm => fm.GetType() == typeof(GrassCoverErosionOutwardsFailureMechanism)) as GrassCoverErosionOutwardsFailureMechanism;
+
+            if (failureMechanism != null)
+            {
+                locationsAffected = GrassCoverErosionOutwardsDataSynchronizationService.ClearHydraulicBoundaryLocationOutput(failureMechanism.GrassCoverErosionOutwardsHydraulicBoundaryLocations);
+            }
+
             foreach (var hydraulicBoundaryLocation in hydraulicBoundaryDatabase.Locations
                                                                                .Where(hydraulicBoundaryLocation =>
                                                                                       !double.IsNaN(hydraulicBoundaryLocation.DesignWaterLevel) ||
@@ -141,10 +155,10 @@
                 hydraulicBoundaryLocation.WaveHeight = (RoundedDouble) double.NaN;
                 hydraulicBoundaryLocation.DesignWaterLevelCalculationConvergence = CalculationConvergence.NotCalculated;
                 hydraulicBoundaryLocation.WaveHeightCalculationConvergence = CalculationConvergence.NotCalculated;
-                locationAffected = true;
+                locationsAffected = true;
             }
 
-            return locationAffected;
+            return locationsAffected;
         }
     }
 }
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