Index: Ringtoets/Piping/src/Ringtoets.Piping.IO/Configurations/PipingCalculationConfigurationReader.cs
===================================================================
diff -u -r2539713cb27674daed011f260add32abcaddb958 -rf04205ffb20784bfa07e35b80f7c4d194a298dba
--- Ringtoets/Piping/src/Ringtoets.Piping.IO/Configurations/PipingCalculationConfigurationReader.cs	(.../PipingCalculationConfigurationReader.cs)	(revision 2539713cb27674daed011f260add32abcaddb958)
+++ Ringtoets/Piping/src/Ringtoets.Piping.IO/Configurations/PipingCalculationConfigurationReader.cs	(.../PipingCalculationConfigurationReader.cs)	(revision f04205ffb20784bfa07e35b80f7c4d194a298dba)
@@ -75,7 +75,7 @@
         {
             return new PipingCalculationConfiguration(calculationElement.Attribute(ConfigurationSchemaIdentifiers.NameAttribute).Value)
             {
-                AssessmentLevel = calculationElement.GetDoubleValueFromDescendantElement(PipingCalculationConfigurationSchemaIdentifiers.AssessmentLevelElement),
+                AssessmentLevel = GetWaterLevel(calculationElement),
                 HydraulicBoundaryLocationName = calculationElement.GetStringValueFromDescendantElement(ConfigurationSchemaIdentifiers.HydraulicBoundaryLocationElementOld),
                 SurfaceLineName = calculationElement.GetStringValueFromDescendantElement(PipingCalculationConfigurationSchemaIdentifiers.SurfaceLineElement),
                 EntryPointL = calculationElement.GetDoubleValueFromDescendantElement(PipingCalculationConfigurationSchemaIdentifiers.EntryPointLElement),
@@ -87,5 +87,11 @@
                 Scenario = calculationElement.GetScenarioConfiguration()
             };
         }
+
+        private static double? GetWaterLevel(XElement calculationElement)
+        {
+            return calculationElement.GetDoubleValueFromDescendantElement(PipingCalculationConfigurationSchemaIdentifiers.WaterLevelElement) 
+                   ?? calculationElement.GetDoubleValueFromDescendantElement(PipingCalculationConfigurationSchemaIdentifiers.AssessmentLevelElement);
+        }
     }
 }
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