Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.IO/Configurations/MacroStabilityInwardsCalculationConfigurationReader.cs
===================================================================
diff -u -r8d246ac6328e6e649ff6e78dfe3fac210d789ba0 -r7bdfcad00be09dbecb36fc412f7ba420ce0d6e52
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.IO/Configurations/MacroStabilityInwardsCalculationConfigurationReader.cs	(.../MacroStabilityInwardsCalculationConfigurationReader.cs)	(revision 8d246ac6328e6e649ff6e78dfe3fac210d789ba0)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.IO/Configurations/MacroStabilityInwardsCalculationConfigurationReader.cs	(.../MacroStabilityInwardsCalculationConfigurationReader.cs)	(revision 7bdfcad00be09dbecb36fc412f7ba420ce0d6e52)
@@ -82,10 +82,8 @@
             var configuration = new MacroStabilityInwardsCalculationConfiguration(
                 calculationElement.Attribute(ConfigurationSchemaIdentifiers.NameAttribute).Value)
             {
-                AssessmentLevel = calculationElement.GetDoubleValueFromDescendantElement(
-                    MacroStabilityInwardsCalculationConfigurationSchemaIdentifiers.AssessmentLevelElement),
-                HydraulicBoundaryLocationName = calculationElement.GetStringValueFromDescendantElement(
-                    ConfigurationSchemaIdentifiers.HydraulicBoundaryLocationElement),
+                AssessmentLevel = GetAssessmentLevel(calculationElement),
+                HydraulicBoundaryLocationName = calculationElement.GetHydraulicBoundaryLocationName(),
                 SurfaceLineName = calculationElement.GetStringValueFromDescendantElement(
                     MacroStabilityInwardsCalculationConfigurationSchemaIdentifiers.SurfaceLineElement),
                 StochasticSoilModelName = calculationElement.GetStringValueFromDescendantElement(
@@ -131,6 +129,12 @@
             return configuration;
         }
 
+        private static double? GetAssessmentLevel(XElement calculationElement)
+        {
+            return calculationElement.GetDoubleValueFromDescendantElement(MacroStabilityInwardsCalculationConfigurationSchemaIdentifiers.WaterLevelElement)
+                   ?? calculationElement.GetDoubleValueFromDescendantElement(MacroStabilityInwardsCalculationConfigurationSchemaIdentifiers.AssessmentLevelElement);
+        }
+
         /// <summary>
         /// Sets the minimum level phreatic line related properties to <paramref name="configuration"/>.
         /// </summary>