Index: Application/Ringtoets/test/Application.Ringtoets.Storage.Test/Update/PipingSoilLayerUpdateExtensionsTest.cs
===================================================================
diff -u -r8ed108b83f575f6cb7dc1b89224606894a4bcb7a -rcb6877f670bacc7a6a896ab132d592eeef1107b5
--- Application/Ringtoets/test/Application.Ringtoets.Storage.Test/Update/PipingSoilLayerUpdateExtensionsTest.cs	(.../PipingSoilLayerUpdateExtensionsTest.cs)	(revision 8ed108b83f575f6cb7dc1b89224606894a4bcb7a)
+++ Application/Ringtoets/test/Application.Ringtoets.Storage.Test/Update/PipingSoilLayerUpdateExtensionsTest.cs	(.../PipingSoilLayerUpdateExtensionsTest.cs)	(revision cb6877f670bacc7a6a896ab132d592eeef1107b5)
@@ -139,7 +139,7 @@
                 StorageId = 1,
                 IsAquifer = true,
                 AbovePhreaticLevel = 4.4,
-                BelowPhreaticLevel = null,
+                BelowPhreaticLevelMean = double.NaN,
                 DryUnitWeight = 5.5,
                 Color = Color.DarkKhaki,
                 MaterialName = "NewName"