Index: Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Data/ClosingStructuresInput.cs
===================================================================
diff -u -rd8060bb8ac069ffc11a45d46814ca9387bbe7230 -r412feeeb79d170c32d29b318b153c7a96cf1bebc
--- Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Data/ClosingStructuresInput.cs	(.../ClosingStructuresInput.cs)	(revision d8060bb8ac069ffc11a45d46814ca9387bbe7230)
+++ Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Data/ClosingStructuresInput.cs	(.../ClosingStructuresInput.cs)	(revision 412feeeb79d170c32d29b318b153c7a96cf1bebc)
@@ -109,25 +109,25 @@
             ThresholdHeightOpenWeir = new NormalDistribution
             {
                 Mean = RoundedDouble.NaN,
-                StandardDeviation = (RoundedDouble)0.1
+                StandardDeviation = RoundedDouble.NaN
             };
 
             AreaFlowApertures = new LogNormalDistribution
             {
                 Mean = RoundedDouble.NaN,
-                StandardDeviation = (RoundedDouble)0.01
+                StandardDeviation = RoundedDouble.NaN
             };
 
             LevelCrestStructureNotClosing = new NormalDistribution
             {
                 Mean = RoundedDouble.NaN,
-                StandardDeviation = (RoundedDouble)0.05
+                StandardDeviation = RoundedDouble.NaN
             };
 
             InsideWaterLevel = new NormalDistribution
             {
                 Mean = RoundedDouble.NaN,
-                StandardDeviation = (RoundedDouble)0.1
+                StandardDeviation = RoundedDouble.NaN
             };
 
             IdenticalApertures = 0;