Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Services/HydraRingCalculationService.cs
===================================================================
diff -u -r5b3041efe0fd2d334984d6c730815242b30229aa -rfb6c8cb473282ccd9b920afddb33a2284c7274cd
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Services/HydraRingCalculationService.cs	(.../HydraRingCalculationService.cs)	(revision 5b3041efe0fd2d334984d6c730815242b30229aa)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Services/HydraRingCalculationService.cs	(.../HydraRingCalculationService.cs)	(revision fb6c8cb473282ccd9b920afddb33a2284c7274cd)
@@ -41,6 +41,8 @@
         private static Process hydraRingProcess;
         private static IHydraRingCalculationService instance;
 
+        private HydraRingCalculationService() {}
+
         /// <summary>
         /// Gets or sets an instance of <see cref="IHydraRingCalculationService"/>.
         /// </summary>
@@ -57,14 +59,16 @@
         }
 
         /// <summary>
-        /// This method performs a type II calculation via Hydra-Ring:
-        /// Iterate towards a target probability, provided as reliability index.
+        /// Cancels any currently running Hydra-Ring calculation.
         /// </summary>
-        /// <param name="hlcdDirectory">The directory of the HLCD file that should be used for performing the calculation.</param>
-        /// <param name="ringId">The id of the ring to perform the calculation for.</param>
-        /// <param name="uncertaintiesType">The <see cref="HydraRingUncertaintiesType"/> to use while executing the calculation.</param>
-        /// <param name="hydraRingCalculationInput">The input of the calculation to perform.</param>
-        /// <param name="parsers">Parsers that will be invoked after the Hydra-Ring calculation has ran.</param>
+        public static void CancelRunningCalculation()
+        {
+            if (hydraRingProcess != null && !hydraRingProcess.HasExited)
+            {
+                hydraRingProcess.StandardInput.WriteLine("b");
+            }
+        }
+
         public void PerformCalculation(
             string hlcdDirectory,
             string ringId,
@@ -87,17 +91,6 @@
             PerformPostProcessing(hydraRingCalculationInput, parsers.ToList(), hydraRingInitializationService);
         }
 
-        /// <summary>
-        /// Cancels any currently running Hydra-Ring calculation.
-        /// </summary>
-        public static void CancelRunningCalculation()
-        {
-            if (hydraRingProcess != null && !hydraRingProcess.HasExited)
-            {
-                hydraRingProcess.StandardInput.WriteLine("b");
-            }
-        }
-
         private static void PerformPostProcessing(HydraRingCalculationInput hydraRingCalculationInput,
                                                   ICollection<IHydraRingFileParser> parsers,
                                                   HydraRingInitializationService hydraRingInitializationService)