Index: Riskeer/Piping/src/Riskeer.Piping.IO/Configurations/PipingCalculationConfigurationWriter.cs
===================================================================
diff -u -r5d8ffd1f0445f320e08b0ca7d715249c5fe35618 -rcfbb499d8f6eecdb1790f25c4c0fd875ba5ae73f
--- Riskeer/Piping/src/Riskeer.Piping.IO/Configurations/PipingCalculationConfigurationWriter.cs	(.../PipingCalculationConfigurationWriter.cs)	(revision 5d8ffd1f0445f320e08b0ca7d715249c5fe35618)
+++ Riskeer/Piping/src/Riskeer.Piping.IO/Configurations/PipingCalculationConfigurationWriter.cs	(.../PipingCalculationConfigurationWriter.cs)	(revision cfbb499d8f6eecdb1790f25c4c0fd875ba5ae73f)
@@ -69,12 +69,7 @@
         /// <exception cref="InvalidOperationException">Thrown when the <paramref name="writer"/> is closed.</exception>
         private static void WriteCalculationElements(XmlWriter writer, PipingCalculationConfiguration configuration)
         {
-            WriteElementWhenContentAvailable(writer,
-                                             PipingCalculationConfigurationSchemaIdentifiers.WaterLevelElement,
-                                             configuration.AssessmentLevel);
-            WriteElementWhenContentAvailable(writer,
-                                             ConfigurationSchemaIdentifiers.HydraulicBoundaryLocationElement,
-                                             configuration.HydraulicBoundaryLocationName);
+            WriteCalculationTypeElements(writer, configuration);
 
             WriteElementWhenContentAvailable(writer,
                                              PipingCalculationConfigurationSchemaIdentifiers.SurfaceLineElement,
@@ -98,6 +93,40 @@
         }
 
         /// <summary>
+        /// Writes the calculation type specific elements of the <paramref name="configuration"/> in XML format to file.
+        /// </summary>
+        /// <param name="writer">The writer to use for writing.</param>
+        /// <param name="configuration">The calculation configuration to write.</param>
+        /// <exception cref="InvalidOperationException">Thrown when the <paramref name="writer"/> is closed.</exception>
+        private static void WriteCalculationTypeElements(XmlWriter writer, PipingCalculationConfiguration configuration)
+        {
+            if (configuration.CalculationType == PipingCalculationConfigurationType.SemiProbabilistic)
+            {
+                WriteSemiProbabilisticCalculationElements(writer, configuration);
+            }
+        }
+
+        /// <summary>
+        /// Writes the semi-probabilistic elements of the <paramref name="configuration"/> in XML format to file.
+        /// </summary>
+        /// <param name="writer">The writer to use for writing.</param>
+        /// <param name="configuration">The calculation configuration to write.</param>
+        /// <exception cref="InvalidOperationException">Thrown when the <paramref name="writer"/> is closed.</exception>
+        private static void WriteSemiProbabilisticCalculationElements(XmlWriter writer, PipingCalculationConfiguration configuration)
+        {
+            writer.WriteStartElement(PipingCalculationConfigurationSchemaIdentifiers.SemiProbabilistic);
+
+            WriteElementWhenContentAvailable(writer,
+                                             PipingCalculationConfigurationSchemaIdentifiers.WaterLevelElement,
+                                             configuration.AssessmentLevel);
+            WriteElementWhenContentAvailable(writer,
+                                             ConfigurationSchemaIdentifiers.HydraulicBoundaryLocationElement,
+                                             configuration.HydraulicBoundaryLocationName);
+
+            writer.WriteEndElement();
+        }
+
+        /// <summary>
         /// Writes the stochasts elements of the <paramref name="configuration"/> in XML format to file.
         /// </summary>
         /// <param name="writer">The writer to use for writing.</param>
Index: Riskeer/Piping/test/Riskeer.Piping.IO.Test/test-data/PipingCalculationConfigurationWriter/folderWithSubfolderAndCalculation.xml
===================================================================
diff -u -re9ac8660f203ae4e88f4360340ffef47c0de0656 -rcfbb499d8f6eecdb1790f25c4c0fd875ba5ae73f
--- Riskeer/Piping/test/Riskeer.Piping.IO.Test/test-data/PipingCalculationConfigurationWriter/folderWithSubfolderAndCalculation.xml	(.../folderWithSubfolderAndCalculation.xml)	(revision e9ac8660f203ae4e88f4360340ffef47c0de0656)
+++ Riskeer/Piping/test/Riskeer.Piping.IO.Test/test-data/PipingCalculationConfigurationWriter/folderWithSubfolderAndCalculation.xml	(.../folderWithSubfolderAndCalculation.xml)	(revision cfbb499d8f6eecdb1790f25c4c0fd875ba5ae73f)
@@ -2,8 +2,10 @@
 <configuratie versie="1">
   <map naam="PK001_0001">
     <berekening naam="PK001_0001 W1-6_0_1D1">
-      <waterstand>10</waterstand>
-      <hblocatie>PUNT_KAT_18</hblocatie>
+      <semi-probabilistisch>
+        <waterstand>10</waterstand>
+        <hblocatie>PUNT_KAT_18</hblocatie>
+      </semi-probabilistisch>
       <profielschematisatie>PK001_0001</profielschematisatie>
       <intredepunt>0.1</intredepunt>
       <uittredepunt>0.2</uittredepunt>
@@ -26,6 +28,7 @@
     </berekening>
     <map naam="PK001_0002">
       <berekening naam="Sparse">
+        <semi-probabilistisch />
         <stochasten />
       </berekening>
     </map>