Index: Ringtoets/Integration/src/Ringtoets.Integration.Service/RingtoetsDataSynchronizationService.cs
===================================================================
diff -u -rcf55284bcecdef7b9ef6cbd0d5a00c27870e4f85 -ra1bba29ba0d84061cca88da8324957087d564db9
--- Ringtoets/Integration/src/Ringtoets.Integration.Service/RingtoetsDataSynchronizationService.cs	(.../RingtoetsDataSynchronizationService.cs)	(revision cf55284bcecdef7b9ef6cbd0d5a00c27870e4f85)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Service/RingtoetsDataSynchronizationService.cs	(.../RingtoetsDataSynchronizationService.cs)	(revision a1bba29ba0d84061cca88da8324957087d564db9)
@@ -74,7 +74,7 @@
 
             var changedObservables = new List<IObservable>();
 
-            foreach (var failureMechanism in assessmentSection.GetFailureMechanisms())
+            foreach (IFailureMechanism failureMechanism in assessmentSection.GetFailureMechanisms())
             {
                 var pipingFailureMechanism = failureMechanism as PipingFailureMechanism;
                 var grassCoverErosionInwardsFailureMechanism = failureMechanism as GrassCoverErosionInwardsFailureMechanism;
@@ -153,7 +153,7 @@
 
             var changedObservables = new List<IObservable>();
 
-            foreach (var failureMechanism in failureMechanisms)
+            foreach (IFailureMechanism failureMechanism in failureMechanisms)
             {
                 var pipingFailureMechanism = failureMechanism as PipingFailureMechanism;
                 var grassCoverErosionInwardsFailureMechanism = failureMechanism as GrassCoverErosionInwardsFailureMechanism;
@@ -560,7 +560,7 @@
                 .ToArray();
             foreach (GrassCoverErosionInwardsCalculation calculation in calculationWithRemovedDikeProfile)
             {
-                foreach (var calculationWithRemovedOutput in RingtoetsCommonDataSynchronizationService.ClearCalculationOutput(calculation))
+                foreach (IObservable calculationWithRemovedOutput in RingtoetsCommonDataSynchronizationService.ClearCalculationOutput(calculation))
                 {
                     changedObservables.Add(calculationWithRemovedOutput);
                 }