Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/KernelWrappers/MacroStabilityCommon/ConversionHelperTests.cs
===================================================================
diff -u -r1993 -r1997
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/KernelWrappers/MacroStabilityCommon/ConversionHelperTests.cs	(.../ConversionHelperTests.cs)	(revision 1993)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/KernelWrappers/MacroStabilityCommon/ConversionHelperTests.cs	(.../ConversionHelperTests.cs)	(revision 1997)
@@ -20,16 +20,14 @@
 // All rights reserved.
 
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using Deltares.DamEngine.Calculators.KernelWrappers.MacroStabilityCommon.MacroStabilityIo;
 using Deltares.DamEngine.Data.General;
-using Deltares.DamEngine.Io.XmlInput;
+using Deltares.DamEngine.TestHelpers;
 using Deltares.MacroStability.Data;
 using Deltares.MacroStability.Geometry;
+using KellermanSoftware.CompareNetObjects;
 using NUnit.Framework;
+using Soil = Deltares.DamEngine.Data.Geotechnics.Soil;
 
 namespace Deltares.DamEngine.Calculators.Tests.KernelWrappers.MacroStabilityCommon
 {
@@ -115,5 +113,38 @@
             Assert.AreEqual(gridOrientation, ConversionHelper.ConvertToGridOrientation(mStabGridPosition));
         }
         #endregion
+
+        #region Soil
+        [Test]
+        [Category(Categories.WorkInProgress)]
+        public void GivenMacroStabilitySoilWhenConvertingToDamSoilAndBackThenResultEqualsOriginal()
+        {
+            // Given MacroStability Soil
+            var macroStabilitySoil = new MacroStability.Geometry.Soil()
+            {
+                Name = "MacroStabilitySoil",
+                AbovePhreaticLevel = 1.01,
+                BelowPhreaticLevel = 1.02,
+                Cohesion = 1.03,
+                FrictionAngle = 1.04,
+                Dilatancy = -1.045, // -Phi (FrictionAngle)
+                RRatio = 1.05,
+                RatioCuPc  = 1.06,
+                RheologicalCoefficient = 1.07,
+                StrengthIncreaseExponent = 1.08,
+                UseSoilType = true,
+                BondStressCurve = null
+            };
+
+            // When Converting to DamSoil and back
+            Soil damSoil = ConversionHelper.ConvertToDamSoil(macroStabilitySoil);
+            var actualMacroStabilitySoil = ConversionHelper.ConvertToMacroStabilitySoil(damSoil);
+
+            // Then result equals original
+            var compare = new CompareLogic { Config = { MaxDifferences = 100 } };
+            var result = compare.Compare(macroStabilitySoil, actualMacroStabilitySoil);
+            Assert.AreEqual(0, result.Differences.Count, "Differences found converting/reconverting Soil");
+        }
+        #endregion
     }
 }
Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/MacroStabilityIo/ConversionHelper.cs
===================================================================
diff -u -r1993 -r1997
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/MacroStabilityIo/ConversionHelper.cs	(.../ConversionHelper.cs)	(revision 1993)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/MacroStabilityIo/ConversionHelper.cs	(.../ConversionHelper.cs)	(revision 1997)
@@ -22,8 +22,11 @@
 using System;
 using System.Collections.Generic;
 using Deltares.DamEngine.Data.General;
+using Deltares.DamEngine.Data.Geotechnics;
+using Deltares.DamEngine.Data.Standard;
 using Deltares.MacroStability.Data;
 using Deltares.MacroStability.Geometry;
+using Soil = Deltares.MacroStability.Geometry.Soil;
 
 namespace Deltares.DamEngine.Calculators.KernelWrappers.MacroStabilityCommon.MacroStabilityIo
 {
@@ -110,7 +113,7 @@
         /// <summary>Converts to MStabGridPosition.</summary>
         /// <param name="gridOrientation">The grid orientation.</param>
         /// <returns></returns>
-        public static  MStabGridPosition ConvertToMStabGridPosition(GridOrientation gridOrientation)
+        public static MStabGridPosition ConvertToMStabGridPosition(GridOrientation gridOrientation)
         {
             var translationTable = new Dictionary<GridOrientation, MStabGridPosition>()
             {
@@ -133,5 +136,95 @@
             return translationTable[mStabGridPosition];
         }
         #endregion
+
+        #region Soil
+        /// <summary>Converts to MacroStability soil.</summary>
+        /// <param name="soil">The Dam soil.</param>
+        /// <returns>The MacroStability Soil.</returns>
+        public static Soil ConvertToMacroStabilitySoil(Data.Geotechnics.Soil soil)
+        {
+            var macroStabilitySoil = new Soil()
+            {
+                Name = soil.Name,
+                AbovePhreaticLevel = soil.AbovePhreaticLevel,
+                BelowPhreaticLevel = soil.BelowPhreaticLevel,
+                Cohesion = soil.Cohesion,
+                FrictionAngle = soil.FrictionAngle,
+                RRatio = 0.0, // TODO find the correct parameter
+                RatioCuPc = soil.RatioCuPc,
+                RheologicalCoefficient = 0.0, // TODO find the correct parameter
+                StrengthIncreaseExponent = 0.0, // TODO find the correct parameter
+                UseSoilType = true, // TODO find the correct parameter
+                BondStressCurve = null // TODO find the correct parameter
+            };
+            switch (soil.DilatancyType)
+            {
+                case DilatancyType.MinusPhi:
+                    macroStabilitySoil.Dilatancy = -macroStabilitySoil.FrictionAngle; // -Phi (FrictionAngle)
+                    break;
+                case DilatancyType.Phi:
+                    macroStabilitySoil.Dilatancy = macroStabilitySoil.FrictionAngle; // Phi (FrictionAngle)
+                    break;
+                case DilatancyType.Zero:
+                    macroStabilitySoil.Dilatancy = 0.0; // Zero
+                    break;
+            }
+            return macroStabilitySoil;
+        }
+        /// <summary>Converts to Dam soil.</summary>
+        /// <param name="soil">The MacroStability soil.</param>
+        /// <returns>The Dam soil.</returns>
+        /// <exception cref="System.FormatException"></exception>
+        public static Data.Geotechnics.Soil ConvertToDamSoil(Soil soil)
+        {
+            double tolerance = 0.00001;
+            var damSoil = new Data.Geotechnics.Soil()
+            {
+                Name = soil.Name,
+                AbovePhreaticLevel = soil.AbovePhreaticLevel,
+                BelowPhreaticLevel = soil.BelowPhreaticLevel,
+                Cohesion = soil.Cohesion,
+                FrictionAngle = soil.FrictionAngle,
+                // RRatio = 1.01
+                RatioCuPc = soil.RatioCuPc,
+                // RheologicalCoefficient = 1.07,
+                // StrengthIncreaseExponent = 1.08,
+                // UseSoilType = true,
+
+                // Following parameters are not available in MacroStability soil and will not be translated
+                //CuBottom = 0.00,
+                //DiameterD70 = 0.00,
+                //CuTop = 0.00,
+                //DiameterD90 = 0.00,
+                //DryUnitWeight = 0.00,
+                //Ocr = 0.00,
+                //PermeabKx = 0.00,
+                //PoP = 0.00,
+                //ShearStrengthModel = ShearStrengthModel.CPhi,
+                //SlopeRestProfile = 0.00,
+                //SoilType = SoilType.Clay,
+                //UseDefaultShearStrengthModel = false,
+                //UsePop = true,
+                //WhitesConstant = 0.00,
+            };
+            if (soil.Dilatancy.AlmostEquals(soil.FrictionAngle, tolerance))
+            {
+                damSoil.DilatancyType = DilatancyType.Phi;
+            }
+            else if (soil.Dilatancy.AlmostEquals(-soil.FrictionAngle, tolerance))
+            {
+                damSoil.DilatancyType = DilatancyType.MinusPhi;
+            }
+            else if (soil.Dilatancy.AlmostEquals(0.0, tolerance))
+            {
+                damSoil.DilatancyType = DilatancyType.Zero;
+            }
+            else
+            {
+                throw new FormatException(string.Format("Cannot determine DilatancyType; Dilatancy = {0}, FrictionAngle = {1}", soil.Dilatancy, soil.FrictionAngle));
+            }
+            return damSoil;
+        }
+        #endregion
     }
 }
Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/MacroStabilityIo/FillWtiFromDamEngine.cs
===================================================================
diff -u -r1993 -r1997
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/MacroStabilityIo/FillWtiFromDamEngine.cs	(.../FillWtiFromDamEngine.cs)	(revision 1993)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/MacroStabilityIo/FillWtiFromDamEngine.cs	(.../FillWtiFromDamEngine.cs)	(revision 1997)
@@ -87,10 +87,15 @@
 
         private static void TransferSoilModel(DamProjectData damProjectData, IList<Soil> soils)
         {
-            soils.Add(new Soil());
+            foreach (Data.Geotechnics.Soil soil in damProjectData.Dike.SoilList.Soils)
+            {
+                Soil macroStabilitySoil = ConversionHelper.ConvertToMacroStabilitySoil(soil);
+                soils.Add(macroStabilitySoil);
+            }
         }
 
 
+
         private static void TransferSurfaceLine()
         {