Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.KernelWrapper/Creators/Input/SoilProfileCreator.cs
===================================================================
diff -u -rd3d8ce69baae082c576e3e3a3fedff5b5b57a1e9 -r44219345a24b6fe20ec684d2a0fc61a84abee67f
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.KernelWrapper/Creators/Input/SoilProfileCreator.cs	(.../SoilProfileCreator.cs)	(revision d3d8ce69baae082c576e3e3a3fedff5b5b57a1e9)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.KernelWrapper/Creators/Input/SoilProfileCreator.cs	(.../SoilProfileCreator.cs)	(revision 44219345a24b6fe20ec684d2a0fc61a84abee67f)
@@ -21,6 +21,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Linq;
 using Deltares.WTIStability.Data.Geo;
 using Deltares.WTIStability.Data.Standard;
@@ -66,7 +67,7 @@
                     IsAquifer = layerWithSoil.Key.IsAquifer,
                     Soil = layerWithSoil.Value,
                     GeometrySurface = CreateGeometrySurface(layerWithSoil.Key),
-                    WaterpressureInterpolationModel = WaterpressureInterpolationModel.Automatic
+                    WaterpressureInterpolationModel = ConvertWaterPressureInterpolationModel(layerWithSoil.Key.WaterPressureInterpolationModel)
                 });
             }
 
@@ -163,5 +164,34 @@
 
             return geometryData;
         }
+
+        /// <summary>
+        /// Converts a <see cref="UpliftVanWaterPressureInterpolationModel"/> into a <see cref="WaterpressureInterpolationModel"/>.
+        /// </summary>
+        /// <param name="waterPressureInterpolationModel">The <see cref="UpliftVanWaterPressureInterpolationModel"/> to convert.</param>
+        /// <returns>A <see cref="WaterpressureInterpolationModel"/> based on <paramref name="waterPressureInterpolationModel"/>.</returns>
+        /// <exception cref="InvalidEnumArgumentException">Thrown when <paramref name="waterPressureInterpolationModel"/>
+        /// is an invalid value.</exception>
+        /// <exception cref="NotSupportedException">Thrown when <paramref name="waterPressureInterpolationModel"/>
+        /// is a valid value but unsupported.</exception>
+        private static WaterpressureInterpolationModel ConvertWaterPressureInterpolationModel(UpliftVanWaterPressureInterpolationModel waterPressureInterpolationModel)
+        {
+            if (!Enum.IsDefined(typeof(UpliftVanWaterPressureInterpolationModel), waterPressureInterpolationModel))
+            {
+                throw new InvalidEnumArgumentException(nameof(waterPressureInterpolationModel),
+                                                       (int) waterPressureInterpolationModel,
+                                                       typeof(UpliftVanWaterPressureInterpolationModel));
+            }
+
+            switch (waterPressureInterpolationModel)
+            {
+                case UpliftVanWaterPressureInterpolationModel.Automatic:
+                    return WaterpressureInterpolationModel.Automatic;
+                case UpliftVanWaterPressureInterpolationModel.Hydrostatic:
+                    return WaterpressureInterpolationModel.Hydrostatic;
+                default:
+                    throw new NotSupportedException();
+            }
+        }
     }
 }
\ No newline at end of file
Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.KernelWrapper.Test/Creators/Input/SoilProfileCreatorTest.cs
===================================================================
diff -u -re3dfe9525dcd4383d8c98a3c9f24626dd5f8324b -r44219345a24b6fe20ec684d2a0fc61a84abee67f
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.KernelWrapper.Test/Creators/Input/SoilProfileCreatorTest.cs	(.../SoilProfileCreatorTest.cs)	(revision e3dfe9525dcd4383d8c98a3c9f24626dd5f8324b)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.KernelWrapper.Test/Creators/Input/SoilProfileCreatorTest.cs	(.../SoilProfileCreatorTest.cs)	(revision 44219345a24b6fe20ec684d2a0fc61a84abee67f)
@@ -21,6 +21,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Linq;
 using Core.Common.Base.Data;
 using Core.Common.TestUtil;
@@ -63,9 +64,43 @@
         }
 
         [Test]
-        public void Create_WithAllData_ReturnSoilProfile2D()
+        public void Create_InvalidWaterPressureInterpolationModel_ThrowInvalidEnumArgumentException()
         {
             // Setup
+            var layer = new UpliftVanSoilLayer(
+                new[]
+                {
+                    new Point2D(0, 0),
+                    new Point2D(1, 1)
+                }, Enumerable.Empty<Point2D[]>(),
+                new UpliftVanSoilLayer.ConstructionProperties
+                {
+                    WaterPressureInterpolationModel = (UpliftVanWaterPressureInterpolationModel) 99
+                });
+
+            var soilProfile = new UpliftVanSoilProfile(new[]
+            {
+                layer
+            }, Enumerable.Empty<UpliftVanPreconsolidationStress>());
+
+            // Call
+            TestDelegate test = () => SoilProfileCreator.Create(soilProfile, new Dictionary<UpliftVanSoilLayer, Soil>
+            {
+                {
+                    layer, new Soil()
+                }
+            });
+
+            // Assert
+            string message = $"The value of argument 'waterPressureInterpolationModel' ({99}) is invalid for Enum type '{typeof(UpliftVanWaterPressureInterpolationModel).Name}'.";
+            TestHelper.AssertThrowsArgumentExceptionAndTestMessage<InvalidEnumArgumentException>(test, message);
+        }
+
+        [TestCase(UpliftVanWaterPressureInterpolationModel.Automatic, WaterpressureInterpolationModel.Automatic)]
+        [TestCase(UpliftVanWaterPressureInterpolationModel.Hydrostatic, WaterpressureInterpolationModel.Hydrostatic)]
+        public void Create_WithAllData_ReturnSoilProfile2D(UpliftVanWaterPressureInterpolationModel upliftVanWaterPressureInterpolationModel, WaterpressureInterpolationModel waterpressureInterpolationModel)
+        {
+            // Setup
             var random = new Random(11);
             double preconsolidationStressXCoordinate = random.Next();
             double preconsolidationStressZCoordinate = random.Next();
@@ -97,7 +132,8 @@
                 outerRing, holes,
                 new UpliftVanSoilLayer.ConstructionProperties
                 {
-                    IsAquifer = true
+                    IsAquifer = true,
+                    WaterPressureInterpolationModel = upliftVanWaterPressureInterpolationModel
                 });
 
             var soil = new Soil();
@@ -132,7 +168,7 @@
             Assert.AreSame(soil, surface.Soil);
             Assert.IsFalse(string.IsNullOrEmpty(surface.Name)); // Unused property
             Assert.AreEqual(layer.IsAquifer, surface.IsAquifer);
-            Assert.AreEqual(WaterpressureInterpolationModel.Automatic, surface.WaterpressureInterpolationModel);
+            Assert.AreEqual(waterpressureInterpolationModel, surface.WaterpressureInterpolationModel);
 
             var point1 = new WTIStabilityPoint2D(0, 0);
             var point2 = new WTIStabilityPoint2D(10, 10);