Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/PlLinesToWaternetConverter.cs
===================================================================
diff -u -r5566 -r5567
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/PlLinesToWaternetConverter.cs	(.../PlLinesToWaternetConverter.cs)	(revision 5566)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/PlLinesToWaternetConverter.cs	(.../PlLinesToWaternetConverter.cs)	(revision 5567)
@@ -84,13 +84,17 @@
             waternet.WaternetLineList.Add(waternetLine);
         }
 
+        double x = surfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeToeAtPolder).X;
+        var dummySoil = new Soil("dummy", 0.0, 0.0);
+        SoilProfile1D soilProfile1DDikeToeAtPolder = SoilProfileHelper.DetermineForSurfaceLineCorrected1DProfileAtX(soilProfile1D, surfaceLine, x, dummySoil);
+        
         plLine = plLines.Lines[PlLineType.Pl2];
         headLine = CreateLine<HeadLine>(plLine, headLine2Name);
-        if (headLine != null && !IsBelowSoilProfile(soilProfile1D, plLine) &&
+        if (headLine != null && !IsBelowSoilProfile(soilProfile1DDikeToeAtPolder, plLine) &&
             pressureType == IntrusionVerticalWaterPressureType.SemiTimeDependent && penetrationLength > 0)
         {
             waternet.HeadLineList.Add(headLine);
-            double level = soilProfile1D.BottomAquiferLayer.TopLevel + penetrationLength;
+            double level = soilProfile1DDikeToeAtPolder.BottomAquiferLayer.TopLevel + penetrationLength;
             WaternetLine waternetLine = CreateWaternetLine(level, xLeft, xRight);
             waternetLine.Name = waternetLine2Name;
             waternetLine.HeadLine = headLine;
@@ -99,18 +103,18 @@
 
         plLine = plLines.Lines[PlLineType.Pl3];
         headLine = CreateLine<HeadLine>(plLine, headLine3Name);
-        if (headLine != null && !IsBelowSoilProfile(soilProfile1D, plLine) &&
+        if (headLine != null && !IsBelowSoilProfile(soilProfile1DDikeToeAtPolder, plLine) &&
             pressureType != IntrusionVerticalWaterPressureType.FullHydroStatic)
         {
             waternet.HeadLineList.Add(headLine);
-            double level = soilProfile1D.BottomAquiferLayer.TopLevel;
+            double level = soilProfile1DDikeToeAtPolder.BottomAquiferLayer.TopLevel;
             WaternetLine waternetLine = CreateWaternetLine(level, xLeft, xRight);
             waternetLine.Name = waternetLine3Name;
             waternetLine.HeadLine = headLine;
             waternet.WaternetLineList.Add(waternetLine);
         }
 
-        CreateWaternetLinesForInBetweenAquifers(waternet, soilProfile1D, xLeft, xRight, plLines.Lines[PlLineType.Pl4], pressureType);
+        CreateWaternetLinesForInBetweenAquifers(waternet, soilProfile1DDikeToeAtPolder, xLeft, xRight, plLines.Lines[PlLineType.Pl4], pressureType);
 
         AdjustWaternetLineOfPhreaticLineWhenCoincidingWithOtherWaternetLines(waternet);
 
Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/MacroStabilityCommonHelper.cs
===================================================================
diff -u -r5565 -r5567
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/MacroStabilityCommonHelper.cs	(.../MacroStabilityCommonHelper.cs)	(revision 5565)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/MacroStabilityCommonHelper.cs	(.../MacroStabilityCommonHelper.cs)	(revision 5567)
@@ -433,9 +433,7 @@
         if (damKernelInput.SubSoilScenario.SoilProfile1D != null)
         {
             SurfaceLine2 surfaceLine = damKernelInput.Location.SurfaceLine;
-            SoilProfile1D soilProfile1D = damKernelInput.SubSoilScenario.SoilProfile2D.GetSoilProfile1D(
-                damKernelInput.Location.SurfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeToeAtPolder).X);
-            return PlLinesToWaternetConverter.CreateWaternetBasedOnPlLines(plLines, soilProfile1D, surfaceLine, penetrationLength, pressureType);
+            return PlLinesToWaternetConverter.CreateWaternetBasedOnPlLines(plLines, damKernelInput.SubSoilScenario.SoilProfile1D, surfaceLine, penetrationLength, pressureType);
         }
 
         SoilProfile2D soilProfile2D = damKernelInput.SubSoilScenario.SoilProfile2D;