Index: dam classic/trunk/src/Dam/Data/DupuitCalculatorFileIO.cs
===================================================================
diff -u -r190 -r222
--- dam classic/trunk/src/Dam/Data/DupuitCalculatorFileIO.cs	(.../DupuitCalculatorFileIO.cs)	(revision 190)
+++ dam classic/trunk/src/Dam/Data/DupuitCalculatorFileIO.cs	(.../DupuitCalculatorFileIO.cs)	(revision 222)
@@ -24,8 +24,6 @@
     using System.Text.RegularExpressions;
     using System.Threading;
 
-    using Geotechnics;
-
     /// <summary>
     /// Exception class for DupuitCalculatorFileIO
     /// </summary>
@@ -489,6 +487,19 @@
 
         }
 
+        private Soil GetDefaultSoil()
+        {
+            var soil = new Soil()
+            {
+                BelowPhreaticLevel = 0.0,
+                AbovePhreaticLevel = 0.0,
+                FrictionAngle = 0.0,
+                Cohesion = 0.0,
+                PermeabKx = 0.0
+            };
+            return soil;
+        }
+
         /// <summary>
         /// Write materials to file
         /// </summary>
@@ -514,13 +525,13 @@
                     Soil soil;
                     if (layerIndex == 0)
                     {
-                        soil = new Soil();
+                        soil = GetDefaultSoil();
                     }
                     else
                     {
                         Geometry2DLayer layerForSoil = adaptedGeometry2DData.GetLayer(layerIndex - 1);
                         int soilIndex = soilList.GetSoilIndexByName(layerForSoil.soilName);
-                        soil = (soilIndex >= 0) ? soilList.Soils[soilIndex] : new Soil();
+                        soil = (soilIndex >= 0) ? soilList.Soils[soilIndex] : GetDefaultSoil();
                     }
 
                     Geometry2DLayer layer = adaptedGeometry2DData.GetLayer(layerIndex);
Index: dam classic/trunk/src/Dam/Tests/PLLinesCreatorDupuitTests.cs
===================================================================
diff -u -r219 -r222
--- dam classic/trunk/src/Dam/Tests/PLLinesCreatorDupuitTests.cs	(.../PLLinesCreatorDupuitTests.cs)	(revision 219)
+++ dam classic/trunk/src/Dam/Tests/PLLinesCreatorDupuitTests.cs	(.../PLLinesCreatorDupuitTests.cs)	(revision 222)
@@ -9,19 +9,14 @@
 //-----------------------------------------------------------------------
 
 using Deltares.Dam.TestHelper;
-using Deltares.Standard.IO;
-using Deltares.Standard.TestUtils;
 
 namespace Deltares.Dam.Tests
 {
-    using System;
-    using System.Collections.Generic;
     using System.IO;
     using Deltares.Dam.Data;
     using NUnit.Framework;
 
     [TestFixture]
-    [Category(Categories.WorkInProgress)] // To be checked; Fails since SVN rev. #25385.3930 Check!!
     public class PLLinesCreatorDupuitTests
     {
         [Test]