Index: Ringtoets/StabilityStoneCover/src/Ringtoets.StabilityStoneCover.Service/StabilityStoneCoverWaveConditionsCalculationService.cs
===================================================================
diff -u -rc96deb3a33a6779c640b20b1c866bb93530fad02 -ra81fb4d326ce43c7f94d464aba21611a4582cd22
--- Ringtoets/StabilityStoneCover/src/Ringtoets.StabilityStoneCover.Service/StabilityStoneCoverWaveConditionsCalculationService.cs	(.../StabilityStoneCoverWaveConditionsCalculationService.cs)	(revision c96deb3a33a6779c640b20b1c866bb93530fad02)
+++ Ringtoets/StabilityStoneCover/src/Ringtoets.StabilityStoneCover.Service/StabilityStoneCoverWaveConditionsCalculationService.cs	(.../StabilityStoneCoverWaveConditionsCalculationService.cs)	(revision a81fb4d326ce43c7f94d464aba21611a4582cd22)
@@ -127,19 +127,35 @@
 
             double norm = assessmentSection.FailureMechanismContribution.Norm;
             string preprocessorDirectory = assessmentSection.HydraulicBoundaryDatabase.EffectivePreprocessorDirectory();
-            TotalWaterLevelCalculations = calculation.InputParameters.GetWaterLevels(calculation.InputParameters.AssessmentLevel).Count() * 2;
+            RoundedDouble normativeAssessmentLevel = assessmentSection.GetNormativeAssessmentLevel(calculation.InputParameters.HydraulicBoundaryLocation);
 
+            TotalWaterLevelCalculations = calculation.InputParameters.GetWaterLevels(normativeAssessmentLevel).Count() * 2;
+
             try
             {
                 log.InfoFormat(Resources.StabilityStoneCoverWaveConditionsCalculationService_Calculate_Calculation_for_blocks_started);
-                IEnumerable<WaveConditionsOutput> blocksOutputs = CalculateWaveConditions(calculation.InputParameters, aBlocks, bBlocks, cBlocks, norm, hlcdFilePath, preprocessorDirectory);
+                IEnumerable<WaveConditionsOutput> blocksOutputs = CalculateWaveConditions(calculation.InputParameters,
+                                                                                          normativeAssessmentLevel,
+                                                                                          aBlocks,
+                                                                                          bBlocks,
+                                                                                          cBlocks,
+                                                                                          norm,
+                                                                                          hlcdFilePath,
+                                                                                          preprocessorDirectory);
                 log.InfoFormat(Resources.StabilityStoneCoverWaveConditionsCalculationService_Calculate_Calculation_for_blocks_finished);
 
                 IEnumerable<WaveConditionsOutput> columnsOutputs = null;
                 if (!Canceled)
                 {
                     log.InfoFormat(Resources.StabilityStoneCoverWaveConditionsCalculationService_Calculate_Calculation_for_columns_started);
-                    columnsOutputs = CalculateWaveConditions(calculation.InputParameters, aColumns, bColumns, cColumns, norm, hlcdFilePath, preprocessorDirectory);
+                    columnsOutputs = CalculateWaveConditions(calculation.InputParameters,
+                                                             normativeAssessmentLevel,
+                                                             aColumns,
+                                                             bColumns,
+                                                             cColumns,
+                                                             norm,
+                                                             hlcdFilePath,
+                                                             preprocessorDirectory);
                     log.InfoFormat(Resources.StabilityStoneCoverWaveConditionsCalculationService_Calculate_Calculation_for_columns_finished);
                 }