Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Data/LogNormalHydraRingVariable.cs
===================================================================
diff -u
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Data/LogNormalHydraRingVariable.cs	(revision 0)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Data/LogNormalHydraRingVariable.cs	(revision 3d5e3ba31a910e7712b77eb49f112069ae1bf396)
@@ -0,0 +1,93 @@
+// Copyright (C) Stichting Deltares 2016. 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.HydraRing.Calculation.Data
+{
+    /// <summary>
+    /// Class for LogNormal Hydra-Ring variable related data.
+    /// </summary>
+    public class LogNormalHydraRingVariable : HydraRingVariable2
+    {
+        private readonly double parameter1;
+        private readonly double parameter2;
+        private readonly double parameter3;
+
+        /// <summary>
+        /// Creates a new instance of <see cref="LogNormalHydraRingVariable"/>.
+        /// </summary>
+        /// <param name="variableId">The Hydra-Ring id corresponding to the variable that is considered.</param>
+        /// <param name="deviationType">The deviation type in case the variable is random.</param>
+        /// <param name="parameter1">The parameter1 value of the variable.</param>
+        /// <param name="parameter2">The parameter2 value of the variable.</param>
+        /// <param name="parameter3">The parameter3 value of the variable.</param>
+        public LogNormalHydraRingVariable(int variableId, HydraRingDeviationType deviationType, double parameter1, double parameter2, double parameter3) 
+            : base(variableId, deviationType)
+        {
+            this.parameter1 = parameter1;
+            this.parameter2 = parameter2;
+            this.parameter3 = parameter3;
+        }
+
+        public override double Parameter1
+        {
+            get
+            {
+                return parameter1;
+            }
+        }
+
+        public override double? Parameter2
+        {
+            get
+            {
+                return DeviationType == HydraRingDeviationType.Standard
+                           ? parameter2
+                           : base.Parameter2;
+            }
+        }
+
+        public override double? Parameter3
+        {
+            get
+            {
+                return parameter3;
+            }
+        }
+
+        public override double CoefficientOfVariation
+        {
+            get
+            {
+                return DeviationType == HydraRingDeviationType.Variation
+                           ? parameter2
+                           : base.CoefficientOfVariation;
+            }
+        }
+
+        public override HydraRingDistributionType DistributionType
+        {
+            get
+            {
+                return HydraRingDistributionType.LogNormal;
+            }
+        }
+    }
+}
\ No newline at end of file
Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Ringtoets.HydraRing.Calculation.csproj
===================================================================
diff -u -r6fa6777d83fb74d42f0584ec98f04f1fbede993c -r3d5e3ba31a910e7712b77eb49f112069ae1bf396
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Ringtoets.HydraRing.Calculation.csproj	(.../Ringtoets.HydraRing.Calculation.csproj)	(revision 6fa6777d83fb74d42f0584ec98f04f1fbede993c)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Ringtoets.HydraRing.Calculation.csproj	(.../Ringtoets.HydraRing.Calculation.csproj)	(revision 3d5e3ba31a910e7712b77eb49f112069ae1bf396)
@@ -91,6 +91,7 @@
     <Compile Include="Data\Input\Overtopping\OvertoppingCalculationInput.cs" />
     <Compile Include="Data\Input\Structures\StructuresOvertoppingCalculationInput.cs" />
     <Compile Include="Data\Input\WaveConditions\WaveConditionsTrapezoidCalculationInput.cs" />
+    <Compile Include="Data\LogNormalHydraRingVariable.cs" />
     <Compile Include="Data\NormalHydraRingVariable.cs" />
     <Compile Include="Data\Output\ExceedanceProbabilityCalculationAlphaOutput.cs" />
     <Compile Include="Data\Output\ExceedanceProbabilityCalculationOutput.cs" />
Index: Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Data/LogNormalHydraRingVariableTest.cs
===================================================================
diff -u
--- Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Data/LogNormalHydraRingVariableTest.cs	(revision 0)
+++ Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Data/LogNormalHydraRingVariableTest.cs	(revision 3d5e3ba31a910e7712b77eb49f112069ae1bf396)
@@ -0,0 +1,50 @@
+// Copyright (C) Stichting Deltares 2016. 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;
+using Ringtoets.HydraRing.Calculation.Data;
+
+namespace Ringtoets.HydraRing.Calculation.Test.Data
+{
+    [TestFixture]
+    public class LogNormalHydraRingVariableTest
+    {
+        [Test]
+        [TestCase(HydraRingDeviationType.Standard, 3.3, 0)]
+        [TestCase(HydraRingDeviationType.Variation, null, 3.3)]
+        public void Constructor_ExpectedValues(HydraRingDeviationType deviationType, double? expectedParameter2, double expectedCoefficientOfVariation)
+        {
+            // Call
+            var hydraRingVariable = new LogNormalHydraRingVariable(1, deviationType, 2.2, 3.3, 4.4);
+
+            // Assert
+            Assert.IsInstanceOf<HydraRingVariable2>(hydraRingVariable);
+            Assert.AreEqual(1, hydraRingVariable.VariableId);
+            Assert.AreEqual(HydraRingDistributionType.LogNormal, hydraRingVariable.DistributionType);
+            Assert.AreEqual(deviationType, hydraRingVariable.DeviationType);
+            Assert.AreEqual(2.2, hydraRingVariable.Parameter1);
+            Assert.AreEqual(expectedParameter2, hydraRingVariable.Parameter2);
+            Assert.AreEqual(4.4, hydraRingVariable.Parameter3);
+            Assert.IsNull(hydraRingVariable.Parameter4);
+            Assert.AreEqual(expectedCoefficientOfVariation, hydraRingVariable.CoefficientOfVariation);
+        }
+    }
+}
\ No newline at end of file
Index: Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Ringtoets.HydraRing.Calculation.Test.csproj
===================================================================
diff -u -r6fa6777d83fb74d42f0584ec98f04f1fbede993c -r3d5e3ba31a910e7712b77eb49f112069ae1bf396
--- Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Ringtoets.HydraRing.Calculation.Test.csproj	(.../Ringtoets.HydraRing.Calculation.Test.csproj)	(revision 6fa6777d83fb74d42f0584ec98f04f1fbede993c)
+++ Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Ringtoets.HydraRing.Calculation.Test.csproj	(.../Ringtoets.HydraRing.Calculation.Test.csproj)	(revision 3d5e3ba31a910e7712b77eb49f112069ae1bf396)
@@ -90,6 +90,7 @@
     <Compile Include="Data\Input\Overtopping\OvertoppingCalculationInputTest.cs" />
     <Compile Include="Data\Input\Structures\StructuresOvertoppingCalculationInputTest.cs" />
     <Compile Include="Data\Input\WaveConditions\WaveConditionsTrapezoidCalculationInputTest.cs" />
+    <Compile Include="Data\LogNormalHydraRingVariableTest.cs" />
     <Compile Include="Data\NormalHydraRingVariableTest.cs" />
     <Compile Include="Data\Output\OvertoppingCalculationWaveHeightOutputTest.cs" />
     <Compile Include="Data\Output\ExceedanceProbabilityCalculationAlphaOutputTest.cs" />