Index: Ringtoets/StabilityStoneCover/src/Ringtoets.StabilityStoneCover.Service/StabilityStoneCoverWaveConditionsCalculationActivity.cs
===================================================================
diff -u -rbea6e87ff7f6b40ff9fcce4d46ccb55bb3b47535 -r9bf880dc73a6626c77988dc2b5e3fa3763ce2329
--- Ringtoets/StabilityStoneCover/src/Ringtoets.StabilityStoneCover.Service/StabilityStoneCoverWaveConditionsCalculationActivity.cs	(.../StabilityStoneCoverWaveConditionsCalculationActivity.cs)	(revision bea6e87ff7f6b40ff9fcce4d46ccb55bb3b47535)
+++ Ringtoets/StabilityStoneCover/src/Ringtoets.StabilityStoneCover.Service/StabilityStoneCoverWaveConditionsCalculationActivity.cs	(.../StabilityStoneCoverWaveConditionsCalculationActivity.cs)	(revision 9bf880dc73a6626c77988dc2b5e3fa3763ce2329)
@@ -103,6 +103,11 @@
 
                            foreach (var waterLevel in calculation.InputParameters.WaterLevels)
                            {
+                               if (State == ActivityState.Canceled)
+                               {
+                                   break;
+                               }
+
                                log.Info(string.Format(Resources.StabilityStoneCoverWaveConditionsCalculationActivity_OnRun_Subject_0_blocks_for_waterlevel_1_started_time_2_,
                                                       calculation.Name,
                                                       waterLevel,
@@ -130,6 +135,11 @@
                                                       waterLevel,
                                                       DateTimeService.CurrentTimeAsString));
 
+                               if (State == ActivityState.Canceled)
+                               {
+                                   break;
+                               }
+
                                log.Info(string.Format(Resources.StabilityStoneCoverWaveConditionsCalculationActivity_OnRun_Subject_0_columns_for_waterlevel_1_started_time_2_,
                                                       calculation.Name,
                                                       waterLevel,