Index: Ringtoets/Common/src/Ringtoets.Common.IO/PreconsolidationStress.cs
===================================================================
diff -u
--- Ringtoets/Common/src/Ringtoets.Common.IO/PreconsolidationStress.cs	(revision 0)
+++ Ringtoets/Common/src/Ringtoets.Common.IO/PreconsolidationStress.cs	(revision 6c59d09636a0a170b03797b7bb1f778dd70ac9a7)
@@ -0,0 +1,69 @@
+// Copyright (C) Stichting Deltares 2017. All rights reserved.
+//
+// This file is part of Ringtoets.
+//
+// Ringtoets is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+namespace Ringtoets.Common.IO
+{
+    /// <summary>
+    /// Class containing parameters for preconsolidation stress definitions.
+    /// </summary>
+    public class PreconsolidationStress
+    {
+        /// <summary>
+        /// Gets or sets the X coordinate of the preconsolidation stress location.
+        /// [m]
+        /// </summary>
+        public double XCoordinate { get; set; } = double.NaN;
+
+        /// <summary>
+        /// Gets or sets the Z coordinate of the preconsolidation stress location.
+        /// [m]
+        /// </summary>
+        public double ZCoordinate { get; set; } = double.NaN;
+
+        /// <summary>
+        /// Gets or sets the value of the preconsolidation stress.
+        /// </summary>
+        public double PreconsolidationStressValue { get; set; } = double.NaN;
+
+        /// <summary>
+        /// Gets or sets distribution type of the preconsolidation stress.
+        /// </summary>
+        public long? PreconsolidationStressDistributionType { get; set; }
+
+        /// <summary>
+        /// Gets or sets the mean for the distribution of the preconsolidation stress.
+        /// [kN/m³]
+        /// </summary>
+        public double PreconsolidationStressMean { get; set; } = double.NaN;
+
+        /// <summary>
+        /// Gets or sets the coefficient of variation for the distribution of the preconsolidation stress.
+        /// [kN/m³]
+        /// </summary>
+        public double PreconsolidationStressCoefficientOfVariation { get; set; } = double.NaN;
+
+        /// <summary>
+        /// Gets or sets the shift for the distribution of the  preconsolidation stress.
+        /// [kN/m³]
+        /// </summary>
+        public double PreconsolidationStressShift { get; set; } = double.NaN;
+    }
+}
\ No newline at end of file
Index: Ringtoets/Common/src/Ringtoets.Common.IO/Ringtoets.Common.IO.csproj
===================================================================
diff -u -r96061b4c3b4d8e09c0a2e6d9afe794324256071c -r6c59d09636a0a170b03797b7bb1f778dd70ac9a7
--- Ringtoets/Common/src/Ringtoets.Common.IO/Ringtoets.Common.IO.csproj	(.../Ringtoets.Common.IO.csproj)	(revision 96061b4c3b4d8e09c0a2e6d9afe794324256071c)
+++ Ringtoets/Common/src/Ringtoets.Common.IO/Ringtoets.Common.IO.csproj	(.../Ringtoets.Common.IO.csproj)	(revision 6c59d09636a0a170b03797b7bb1f778dd70ac9a7)
@@ -100,6 +100,7 @@
     <Compile Include="Configurations\Helpers\XElementExtensions.cs" />
     <Compile Include="Configurations\CalculationGroupConfiguration.cs" />
     <Compile Include="Configurations\Import\CombinedXmlSchemaDefinition.cs" />
+    <Compile Include="PreconsolidationStress.cs" />
     <Compile Include="ReferenceLines\IReferenceLineReplaceHandler.cs" />
     <Compile Include="ReferenceLines\ReferenceLineExporter.cs" />
     <Compile Include="ReferenceLines\ReferenceLineMetaImporter.cs" />
Index: Ringtoets/Common/src/Ringtoets.Common.IO/SoilProfile/PreconsolidationStressProperties.cs
===================================================================
diff -u -r96061b4c3b4d8e09c0a2e6d9afe794324256071c -r6c59d09636a0a170b03797b7bb1f778dd70ac9a7
--- Ringtoets/Common/src/Ringtoets.Common.IO/SoilProfile/PreconsolidationStressProperties.cs	(.../PreconsolidationStressProperties.cs)	(revision 96061b4c3b4d8e09c0a2e6d9afe794324256071c)
+++ Ringtoets/Common/src/Ringtoets.Common.IO/SoilProfile/PreconsolidationStressProperties.cs	(.../PreconsolidationStressProperties.cs)	(revision 6c59d09636a0a170b03797b7bb1f778dd70ac9a7)
@@ -70,7 +70,7 @@
                 PreconsolidationStressValue = reader.ReadOrDefault<double?>(readColumn);
 
                 readColumn = PreconsolidationStressTableDefinitions.PreconsolidationStressDistribution;
-                PreconsolidationStressDistribution = reader.ReadOrDefault<long?>(readColumn);
+                PreconsolidationStressDistributionType = reader.ReadOrDefault<long?>(readColumn);
                 readColumn = PreconsolidationStressTableDefinitions.PreconsolidationStressMean;
                 PreconsolidationStressMean = reader.ReadOrDefault<double?>(readColumn);
                 readColumn = PreconsolidationStressTableDefinitions.PreconsolidationStressCoefficientOfVariation;
@@ -91,42 +91,41 @@
         /// Gets the value representing the X coordinate of the preconsolidation stress location.
         /// [m]
         /// </summary>
-        public double? XCoordinate { get; set; }
+        public double? XCoordinate { get; }
 
         /// <summary>
         /// Gets the value representing the Z coordinate of the preconsolidation stress location.
         /// [m]
         /// </summary>
-        public double? ZCoordinate { get; set; }
+        public double? ZCoordinate { get; }
 
         /// <summary>
         /// Gets the value representing the stress of the preconsolidation stress location.
         /// [kN/m�]
         /// </summary>
-        public double? PreconsolidationStressValue { get; set; }
+        public double? PreconsolidationStressValue { get; }
 
         /// <summary>
-        /// Gets the distribution of the preconsolidation stress.
-        /// [kN/m�]
+        /// Gets the distribution type of the preconsolidation stress.
         /// </summary>
-        public double? PreconsolidationStressDistribution { get; set; }
+        public double? PreconsolidationStressDistributionType { get; }
 
         /// <summary>
-        /// Gets the value representing the mean of the distribution of the preconsolidation stress.
+        /// Gets the value representing the mean of the distribution for the preconsolidation stress.
         /// [kN/m�]
         /// </summary>
-        public double? PreconsolidationStressMean { get; set; }
+        public double? PreconsolidationStressMean { get; }
 
         /// <summary>
-        /// Gets the value representing the coefficient of variation of the distribution of the preconsolidation stress.
+        /// Gets the value representing the coefficient of variation of the distribution for the preconsolidation stress.
         /// [kN/m�]
         /// </summary>
-        public double? PreconsolidationStressCoefficientOfVariation { get; set; }
+        public double? PreconsolidationStressCoefficientOfVariation { get; }
 
         /// <summary>
         /// Gets the value representing the shift of the distribution for the preconsolidation stress.
         /// [kN/m�]
         /// </summary>
-        public double? PreconsolidationStressShift { get; set; }
+        public double? PreconsolidationStressShift { get; }
     }
 }
\ No newline at end of file
Index: Ringtoets/Common/test/Ringtoets.Common.IO.Test/Ringtoets.Common.IO.Test.csproj
===================================================================
diff -u -r96061b4c3b4d8e09c0a2e6d9afe794324256071c -r6c59d09636a0a170b03797b7bb1f778dd70ac9a7
--- Ringtoets/Common/test/Ringtoets.Common.IO.Test/Ringtoets.Common.IO.Test.csproj	(.../Ringtoets.Common.IO.Test.csproj)	(revision 96061b4c3b4d8e09c0a2e6d9afe794324256071c)
+++ Ringtoets/Common/test/Ringtoets.Common.IO.Test/Ringtoets.Common.IO.Test.csproj	(.../Ringtoets.Common.IO.Test.csproj)	(revision 6c59d09636a0a170b03797b7bb1f778dd70ac9a7)
@@ -113,6 +113,7 @@
     <Compile Include="SoilProfile\CriticalProfilePropertiesTest.cs" />
     <Compile Include="SoilProfile\LayerPropertiesTest.cs" />
     <Compile Include="SoilProfile\PreconsolidationStressPropertiesTest.cs" />
+    <Compile Include="SoilProfile\PreconsolidationStressTest.cs" />
     <Compile Include="SoilProfile\SegmentPointReaderTest.cs" />
     <Compile Include="SoilProfile\SoilDatabaseConstraintsReaderTest.cs" />
     <Compile Include="SoilProfile\SoilDatabaseQueryBuilderTest.cs" />
Index: Ringtoets/Common/test/Ringtoets.Common.IO.Test/SoilProfile/PreconsolidationStressPropertiesTest.cs
===================================================================
diff -u -r96061b4c3b4d8e09c0a2e6d9afe794324256071c -r6c59d09636a0a170b03797b7bb1f778dd70ac9a7
--- Ringtoets/Common/test/Ringtoets.Common.IO.Test/SoilProfile/PreconsolidationStressPropertiesTest.cs	(.../PreconsolidationStressPropertiesTest.cs)	(revision 96061b4c3b4d8e09c0a2e6d9afe794324256071c)
+++ Ringtoets/Common/test/Ringtoets.Common.IO.Test/SoilProfile/PreconsolidationStressPropertiesTest.cs	(.../PreconsolidationStressPropertiesTest.cs)	(revision 6c59d09636a0a170b03797b7bb1f778dd70ac9a7)
@@ -70,7 +70,7 @@
             double xCoordinate = random.NextDouble();
             double zCoordinate = random.NextDouble();
             double preconsolidationStressValue = random.NextDouble();
-            long preconsolidationStressDistribution = random.Next();
+            long preconsolidationStressDistributionType = random.Next();
             double preconsolidationStressMean = random.Next();
             double preconsolidationStressCoefficientOfVariation = random.Next();
             double preconsolidationStressShift = random.Next();
@@ -80,7 +80,7 @@
             reader.Expect(r => r.ReadOrDefault<double?>(PreconsolidationStressTableDefinitions.PreconsolidationStressXCoordinate)).Return(xCoordinate);
             reader.Expect(r => r.ReadOrDefault<double?>(PreconsolidationStressTableDefinitions.PreconsolidationStressZCoordinate)).Return(zCoordinate);
             reader.Expect(r => r.ReadOrDefault<double?>(PreconsolidationStressTableDefinitions.PreconsolidationStressValue)).Return(preconsolidationStressValue);
-            reader.Expect(r => r.ReadOrDefault<long?>(PreconsolidationStressTableDefinitions.PreconsolidationStressDistribution)).Return(preconsolidationStressDistribution);
+            reader.Expect(r => r.ReadOrDefault<long?>(PreconsolidationStressTableDefinitions.PreconsolidationStressDistribution)).Return(preconsolidationStressDistributionType);
             reader.Expect(r => r.ReadOrDefault<double?>(PreconsolidationStressTableDefinitions.PreconsolidationStressMean)).Return(preconsolidationStressMean);
             reader.Expect(r => r.ReadOrDefault<double?>(PreconsolidationStressTableDefinitions.PreconsolidationStressCoefficientOfVariation)).Return(preconsolidationStressCoefficientOfVariation);
             reader.Expect(r => r.ReadOrDefault<double?>(PreconsolidationStressTableDefinitions.PreconsolidationStressShift)).Return(preconsolidationStressShift);
@@ -93,7 +93,7 @@
             Assert.AreEqual(xCoordinate, properties.XCoordinate);
             Assert.AreEqual(zCoordinate, properties.ZCoordinate);
             Assert.AreEqual(preconsolidationStressValue, properties.PreconsolidationStressValue);
-            Assert.AreEqual(preconsolidationStressDistribution, properties.PreconsolidationStressDistribution);
+            Assert.AreEqual(preconsolidationStressDistributionType, properties.PreconsolidationStressDistributionType);
             Assert.AreEqual(preconsolidationStressMean, properties.PreconsolidationStressMean);
             Assert.AreEqual(preconsolidationStressCoefficientOfVariation, properties.PreconsolidationStressCoefficientOfVariation);
             Assert.AreEqual(preconsolidationStressShift, properties.PreconsolidationStressShift);
Index: Ringtoets/Common/test/Ringtoets.Common.IO.Test/SoilProfile/PreconsolidationStressTest.cs
===================================================================
diff -u
--- Ringtoets/Common/test/Ringtoets.Common.IO.Test/SoilProfile/PreconsolidationStressTest.cs	(revision 0)
+++ Ringtoets/Common/test/Ringtoets.Common.IO.Test/SoilProfile/PreconsolidationStressTest.cs	(revision 6c59d09636a0a170b03797b7bb1f778dd70ac9a7)
@@ -0,0 +1,45 @@
+// Copyright (C) Stichting Deltares 2017. All rights reserved.
+//
+// This file is part of Ringtoets.
+//
+// Ringtoets is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using NUnit.Framework;
+
+namespace Ringtoets.Common.IO.Test.SoilProfile
+{
+    [TestFixture]
+    public class PreconsolidationStressTest
+    {
+        [Test]
+        public void Constructor_ReturnsDefaultValues()
+        {
+            // Call
+            var stress = new PreconsolidationStress();
+
+            // Assert
+            Assert.IsNaN(stress.XCoordinate);
+            Assert.IsNaN(stress.ZCoordinate);
+            Assert.IsNaN(stress.PreconsolidationStressValue);
+            Assert.IsNull(stress.PreconsolidationStressDistributionType);
+            Assert.IsNaN(stress.PreconsolidationStressMean);
+            Assert.IsNaN(stress.PreconsolidationStressCoefficientOfVariation);
+            Assert.IsNaN(stress.PreconsolidationStressShift);
+        }
+    }
+}
\ No newline at end of file