Index: Ringtoets/Piping/src/Ringtoets.Piping.Primitives/RingtoetsPipingSurfaceLine.cs
===================================================================
diff -u -rb2b9fdf365e70928a05c57966eeed30d9050e528 -r34023112e9d57acf92ed6a713d6e2d1df8548098
--- Ringtoets/Piping/src/Ringtoets.Piping.Primitives/RingtoetsPipingSurfaceLine.cs	(.../RingtoetsPipingSurfaceLine.cs)	(revision b2b9fdf365e70928a05c57966eeed30d9050e528)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Primitives/RingtoetsPipingSurfaceLine.cs	(.../RingtoetsPipingSurfaceLine.cs)	(revision 34023112e9d57acf92ed6a713d6e2d1df8548098)
@@ -23,6 +23,7 @@
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.Linq;
+using Core.Common.Base;
 using Core.Common.Base.Data;
 using Core.Common.Base.Geometry;
 using Ringtoets.Piping.Primitives.Exceptions;
@@ -33,7 +34,7 @@
     /// <summary>
     /// Definition of a surfaceline for piping.
     /// </summary>
-    public class RingtoetsPipingSurfaceLine
+    public class RingtoetsPipingSurfaceLine : Observable
     {
         private const int numberOfDecimalPlaces = 2;
         private Point2D[] localGeometry;
@@ -350,6 +351,25 @@
                                new RoundedDouble(numberOfDecimalPlaces, localCoordinate.Y));
         }
 
+        /// <summary>
+        /// Updates the <see cref="RingtoetsPipingSurfaceLine"/> with the properties of 
+        /// <paramref name="fromSurfaceLine"/>.
+        /// </summary>
+        /// <param name="fromSurfaceLine">The <see cref="RingtoetsPipingSurfaceLine"/>
+        /// to get the property values from.</param>
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="fromSurfaceLine"/>
+        /// is <c>null</c>.</exception>
+        public void Update(RingtoetsPipingSurfaceLine fromSurfaceLine)
+        {
+            if (fromSurfaceLine == null)
+            {
+                throw new ArgumentNullException(nameof(fromSurfaceLine));
+            }
+
+            Name = fromSurfaceLine.Name;
+            SetGeometry(fromSurfaceLine.Points);
+        }
+
         public override string ToString()
         {
             return Name;
Index: Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/RingtoetsPipingSurfaceLineTest.cs
===================================================================
diff -u -r11f0867b39150ae5fac83dc178a89fee46d27611 -r34023112e9d57acf92ed6a713d6e2d1df8548098
--- Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/RingtoetsPipingSurfaceLineTest.cs	(.../RingtoetsPipingSurfaceLineTest.cs)	(revision 11f0867b39150ae5fac83dc178a89fee46d27611)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/RingtoetsPipingSurfaceLineTest.cs	(.../RingtoetsPipingSurfaceLineTest.cs)	(revision 34023112e9d57acf92ed6a713d6e2d1df8548098)
@@ -21,6 +21,7 @@
 
 using System;
 using System.Linq;
+using Core.Common.Base;
 using Core.Common.Base.Data;
 using Core.Common.Base.Geometry;
 using Core.Common.TestUtil;
@@ -43,6 +44,7 @@
             var surfaceLine = new RingtoetsPipingSurfaceLine();
 
             // Assert
+            Assert.IsInstanceOf<Observable>(surfaceLine);
             Assert.AreEqual(string.Empty, surfaceLine.Name);
             CollectionAssert.IsEmpty(surfaceLine.Points);
             Assert.IsNull(surfaceLine.StartingWorldPoint);
@@ -179,12 +181,12 @@
             RoundedPoint2DCollection actual = surfaceLine.ProjectGeometryToLZ();
 
             // Assert
-            var length = Math.Sqrt(2*2 + 3*3);
-            const double secondCoordinateFactor = (2.0*1.0 + 3.0*2.0)/(2.0*2.0 + 3.0*3.0);
+            var length = Math.Sqrt(2 * 2 + 3 * 3);
+            const double secondCoordinateFactor = (2.0 * 1.0 + 3.0 * 2.0) / (2.0 * 2.0 + 3.0 * 3.0);
             var expectedCoordinatesX = new[]
             {
                 0.0,
-                secondCoordinateFactor*length,
+                secondCoordinateFactor * length,
                 length
             };
             CollectionAssert.AreEqual(expectedCoordinatesX, actual.Select(p => p.X).ToArray(), new DoubleWithToleranceComparer(actual.GetAccuracy()));
@@ -724,6 +726,48 @@
             Assert.AreEqual(new Point2D(double.NaN, double.NaN), localPoint);
         }
 
+        [Test]
+        public void Update_WithNullModel_ThrowsArgumentNullException()
+        {
+            // Setup
+            var surfaceLine = new RingtoetsPipingSurfaceLine();
+
+            // Call
+            TestDelegate call = () => surfaceLine.Update(null);
+
+            // Assert
+            string paramName = Assert.Throws<ArgumentNullException>(call).ParamName;
+            Assert.AreEqual("fromSurfaceLine", paramName);
+        }
+
+        [Test]
+        public void Update_ModelWithUpdatedProperties_PropertiesUpdated()
+        {
+            // Setup
+            var surfaceLine = new RingtoetsPipingSurfaceLine();
+
+            const string expectedName = "Other name";
+            Point3D[] expectedGeometry = 
+            {
+                new Point3D(0, 1, 2),
+                new Point3D(3, 4, 5),
+                new Point3D(6, 7, 8)
+            };
+
+            var surfaceLineToUpdateFrom = new RingtoetsPipingSurfaceLine
+            {
+                Name = expectedName
+            };
+            surfaceLineToUpdateFrom.SetGeometry(expectedGeometry);
+
+            // Call
+            surfaceLine.Update(surfaceLineToUpdateFrom);
+
+            // Assert
+            Assert.AreEqual(expectedName, surfaceLine.Name);
+            CollectionAssert.AreEqual(expectedGeometry, surfaceLine.Points);
+        }
+
         private static void CreateTestGeometry(Point3D testPoint, RingtoetsPipingSurfaceLine surfaceLine)
         {
             var random = new Random(21);
Index: Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/StochasticSoilModelTest.cs
===================================================================
diff -u -r34f1b5a53b9c554d1a0a35365da4f8d258117304 -r34023112e9d57acf92ed6a713d6e2d1df8548098
--- Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/StochasticSoilModelTest.cs	(.../StochasticSoilModelTest.cs)	(revision 34f1b5a53b9c554d1a0a35365da4f8d258117304)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/StochasticSoilModelTest.cs	(.../StochasticSoilModelTest.cs)	(revision 34023112e9d57acf92ed6a713d6e2d1df8548098)
@@ -113,7 +113,7 @@
         [Test]
         public void Update_ModelWithUpdatedProperties_PropertiesUpdated()
         {
-            // Assert
+            // Setup
             var model = new StochasticSoilModel(1234, "name", "segment");
             model.Geometry.AddRange(new[]
             {