Index: Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Data/GrassCoverErosionOutwardsFailureMechanism.cs
===================================================================
diff -u -r1f58fe3574c5bad0bee42c6e02f679a718335ab2 -r867a372d86ee5c12205fe2cbebb94f11044b1a91
--- Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Data/GrassCoverErosionOutwardsFailureMechanism.cs	(.../GrassCoverErosionOutwardsFailureMechanism.cs)	(revision 1f58fe3574c5bad0bee42c6e02f679a718335ab2)
+++ Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Data/GrassCoverErosionOutwardsFailureMechanism.cs	(.../GrassCoverErosionOutwardsFailureMechanism.cs)	(revision 867a372d86ee5c12205fe2cbebb94f11044b1a91)
@@ -23,6 +23,7 @@
 using Ringtoets.Common.Data.Calculation;
 using Ringtoets.Common.Data.FailureMechanism;
 using Ringtoets.GrassCoverErosionOutwards.Data.Properties;
+using Ringtoets.HydraRing.Data;
 using RingtoetsCommonDataResources = Ringtoets.Common.Data.Properties.Resources;
 
 namespace Ringtoets.GrassCoverErosionOutwards.Data
@@ -31,8 +32,8 @@
     /// Model containing input and output needed to perform different levels of the
     /// Grass Cover Erosion Outwards failure mechanism.
     /// </summary>
-    public class GrassCoverErosionOutwardsFailureMechanism : FailureMechanismBase, 
-        IHasSectionResults<GrassCoverErosionOutwardsFailureMechanismSectionResult>
+    public class GrassCoverErosionOutwardsFailureMechanism : FailureMechanismBase,
+                                                             IHasSectionResults<GrassCoverErosionOutwardsFailureMechanismSectionResult>
     {
         private readonly IList<GrassCoverErosionOutwardsFailureMechanismSectionResult> sectionResults;
 
@@ -45,22 +46,46 @@
             sectionResults = new List<GrassCoverErosionOutwardsFailureMechanismSectionResult>();
             GeneralInput = new GeneralGrassCoverErosionOutwardsInput();
             HydraulicBoundariesCalculationGroup = new CalculationGroup(RingtoetsCommonDataResources.FailureMechanism_Calculations_DisplayName, false);
+            GrassCoverErosionOutwardsHydraulicBoundaryLocations = new List<GrassCoverErosionOutwardsHydraulicBoundaryLocation>();
         }
 
+        public override IEnumerable<ICalculation> Calculations
+        {
+            get
+            {
+                yield break;
+            }
+        }
+
         /// <summary>
         /// Gets the general grass cover erosion outwards calculation input parameters that apply to each calculation.
         /// </summary>
         public GeneralGrassCoverErosionOutwardsInput GeneralInput { get; private set; }
 
-        public override IEnumerable<ICalculation> Calculations
+        /// <summary>
+        /// Sets <see cref="GrassCoverErosionOutwardsHydraulicBoundaryLocations"/> based upon the <paramref name="hydraulicBoundaryLocations"/>.
+        /// </summary>
+        /// <param name="hydraulicBoundaryLocations">An <see cref="IEnumerable{T}"/> of <see cref="HydraulicBoundaryLocation"/>.</param>
+        public void SetGrassCoverErosionOutwardsHydraulicBoundaryLocations(IEnumerable<HydraulicBoundaryLocation> hydraulicBoundaryLocations)
         {
-            get
+            GrassCoverErosionOutwardsHydraulicBoundaryLocations.Clear();
+            if (hydraulicBoundaryLocations == null)
             {
-                yield break;
+                return;
             }
+
+            foreach (var hydraulicBoundaryLocation in hydraulicBoundaryLocations)
+            {
+                GrassCoverErosionOutwardsHydraulicBoundaryLocations.Add(new GrassCoverErosionOutwardsHydraulicBoundaryLocation(hydraulicBoundaryLocation));
+            }
         }
 
         /// <summary>
+        /// Gets an <see cref="IEnumerable{T}"/> of <see cref="GrassCoverErosionOutwardsHydraulicBoundaryLocation"/>.
+        /// </summary>
+        public IList<GrassCoverErosionOutwardsHydraulicBoundaryLocation> GrassCoverErosionOutwardsHydraulicBoundaryLocations { get; private set; }
+
+        /// <summary>
         /// Gets the container of all hydraulic boundary calculations.
         /// </summary>
         public CalculationGroup HydraulicBoundariesCalculationGroup { get; private set; }
@@ -76,7 +101,6 @@
         public override void AddSection(FailureMechanismSection section)
         {
             base.AddSection(section);
-
             sectionResults.Add(new GrassCoverErosionOutwardsFailureMechanismSectionResult(section));
         }
 
Index: Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Data.Test/GrassCoverErosionOutwardsFailureMechanismTest.cs
===================================================================
diff -u -r1f58fe3574c5bad0bee42c6e02f679a718335ab2 -r867a372d86ee5c12205fe2cbebb94f11044b1a91
--- Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Data.Test/GrassCoverErosionOutwardsFailureMechanismTest.cs	(.../GrassCoverErosionOutwardsFailureMechanismTest.cs)	(revision 1f58fe3574c5bad0bee42c6e02f679a718335ab2)
+++ Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Data.Test/GrassCoverErosionOutwardsFailureMechanismTest.cs	(.../GrassCoverErosionOutwardsFailureMechanismTest.cs)	(revision 867a372d86ee5c12205fe2cbebb94f11044b1a91)
@@ -23,6 +23,7 @@
 using Core.Common.Base.Geometry;
 using NUnit.Framework;
 using Ringtoets.Common.Data.FailureMechanism;
+using Ringtoets.HydraRing.Data;
 
 namespace Ringtoets.GrassCoverErosionOutwards.Data.Test
 {
@@ -44,6 +45,7 @@
             Assert.AreEqual("Berekeningen", failureMechanism.HydraulicBoundariesCalculationGroup.Name);
             Assert.IsFalse(failureMechanism.HydraulicBoundariesCalculationGroup.IsNameEditable);
             CollectionAssert.IsEmpty(failureMechanism.HydraulicBoundariesCalculationGroup.Children);
+            CollectionAssert.IsEmpty(failureMechanism.GrassCoverErosionOutwardsHydraulicBoundaryLocations);
         }
 
         [Test]
@@ -80,5 +82,41 @@
             CollectionAssert.IsEmpty(failureMechanism.Sections);
             CollectionAssert.IsEmpty(failureMechanism.SectionResults);
         }
+        
+        [Test]
+        public void SetGrassCoverErosionOutwardsHydraulicBoundaryLocations_ValidHydraulicBoundaryLocations_SetsGrassCoverErosionOutwardsHydraulicBoundaryLocations()
+        {
+            // Setup
+            var failureMechanism = new GrassCoverErosionOutwardsFailureMechanism();
+            var hydraulicBoundaryLocation = new HydraulicBoundaryLocation(1,"",2,3);
+
+            // Call
+            failureMechanism.SetGrassCoverErosionOutwardsHydraulicBoundaryLocations(new[] { hydraulicBoundaryLocation });
+
+           // Assert
+            Assert.AreEqual(1, failureMechanism.GrassCoverErosionOutwardsHydraulicBoundaryLocations.Count);
+            var firstGrassCoverErosionOutwardsHydraulicBoundaryLocation = failureMechanism.GrassCoverErosionOutwardsHydraulicBoundaryLocations.First();
+            Assert.AreSame(hydraulicBoundaryLocation, firstGrassCoverErosionOutwardsHydraulicBoundaryLocation.HydraulicBoundaryLocation);
+        }
+
+        [Test]
+        public void SetGrassCoverErosionOutwardsHydraulicBoundaryLocations_HydraulicBoundaryLocationsNull_ClearsGrassCoverErosionOutwardsHydraulicBoundaryLocations()
+        {
+            // Setup
+            var failureMechanism = new GrassCoverErosionOutwardsFailureMechanism();
+            var hydraulicBoundaryLocation = new HydraulicBoundaryLocation(1,"",2,3);
+            failureMechanism.SetGrassCoverErosionOutwardsHydraulicBoundaryLocations(new[] { hydraulicBoundaryLocation });
+
+            // Precondition
+            Assert.AreEqual(1, failureMechanism.GrassCoverErosionOutwardsHydraulicBoundaryLocations.Count);
+            var firstGrassCoverErosionOutwardsHydraulicBoundaryLocation = failureMechanism.GrassCoverErosionOutwardsHydraulicBoundaryLocations.First();
+            Assert.AreSame(hydraulicBoundaryLocation, firstGrassCoverErosionOutwardsHydraulicBoundaryLocation.HydraulicBoundaryLocation);
+
+            // Call
+            failureMechanism.SetGrassCoverErosionOutwardsHydraulicBoundaryLocations(null);
+
+            // Assert
+            CollectionAssert.IsEmpty(failureMechanism.GrassCoverErosionOutwardsHydraulicBoundaryLocations);
+        }
     }
 }
\ No newline at end of file