Index: Ringtoets/Piping/src/Ringtoets.Piping.IO/Readers/PipingConfigurationReader.cs
===================================================================
diff -u -rf01130d610fadc513e82f78093100fdd55c4b173 -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/src/Ringtoets.Piping.IO/Readers/PipingConfigurationReader.cs	(.../PipingConfigurationReader.cs)	(revision f01130d610fadc513e82f78093100fdd55c4b173)
+++ Ringtoets/Piping/src/Ringtoets.Piping.IO/Readers/PipingConfigurationReader.cs	(.../PipingConfigurationReader.cs)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -255,7 +255,9 @@
 
         private static XElement GetStochastChildElement(XElement parentElement, string stochastName)
         {
-            return parentElement.Elements(PipingConfigurationSchemaIdentifiers.StochastElement)
+            return parentElement.Elements(PipingConfigurationSchemaIdentifiers.StochastsElement)
+                                .FirstOrDefault()?
+                                .Elements(PipingConfigurationSchemaIdentifiers.StochastElement)
                                 .FirstOrDefault(e => e.Attribute(PipingConfigurationSchemaIdentifiers.NameAttribute)?.Value == stochastName);
         }
     }
Index: Ringtoets/Piping/src/Ringtoets.Piping.IO/Readers/XMLPipingConfigurationSchema.xsd
===================================================================
diff -u -r785741637d6329d6f24c38c962d3442dfe9df1fb -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/src/Ringtoets.Piping.IO/Readers/XMLPipingConfigurationSchema.xsd	(.../XMLPipingConfigurationSchema.xsd)	(revision 785741637d6329d6f24c38c962d3442dfe9df1fb)
+++ Ringtoets/Piping/src/Ringtoets.Piping.IO/Readers/XMLPipingConfigurationSchema.xsd	(.../XMLPipingConfigurationSchema.xsd)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -24,111 +24,118 @@
 -->
 
 <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
-	<xs:element name="root">
-		<xs:complexType>
-			<xs:choice minOccurs="0" maxOccurs="unbounded">
-				<xs:element ref="berekening"/>
-				<xs:element ref="map"/>
-			</xs:choice>
-		</xs:complexType>
-	</xs:element>
-	<xs:element name="map">
-		<xs:complexType>
-			<xs:choice minOccurs="0" maxOccurs="unbounded">
-				<xs:element ref="berekening"/>
-				<xs:element ref="map"/>
-			</xs:choice>
-			<xs:attribute name="naam" use="required">
-				<xs:simpleType>
-					<xs:restriction base="xs:string"/>
-				</xs:simpleType>
-			</xs:attribute>
-		</xs:complexType>
-	</xs:element>
-	<xs:element name="berekening">
-		<xs:complexType>
-			<xs:sequence>
-				<xs:choice minOccurs="0">
-					<xs:element ref="hrlocatie"/>
-					<xs:element ref="toetspeil"/>
-				</xs:choice>
-				<xs:element ref="profielschematisatie" minOccurs="0"/>
-				<xs:element ref="intredepunt" minOccurs="0"/>
-				<xs:element ref="uittredepunt" minOccurs="0"/>
-				<xs:element ref="ondergrondmodel" minOccurs="0"/>
-				<xs:element ref="ondergrondschematisatie" minOccurs="0"/>
-				<xs:element ref="stochast" minOccurs="0" maxOccurs="2"/>
-			</xs:sequence>
-			<xs:attribute name="naam" use="required">
-				<xs:simpleType>
-					<xs:restriction base="xs:string"/>
-				</xs:simpleType>
-			</xs:attribute>
-		</xs:complexType>
-		<xs:unique name="uniqueStochastNameConstraint">
-			<xs:selector xpath="stochast"/>
-			<xs:field xpath="@naam"/>
-		</xs:unique>
-	</xs:element>
-	<xs:element name="profielschematisatie">
-		<xs:simpleType>
-			<xs:restriction base="xs:string"/>
-		</xs:simpleType>
-	</xs:element>
-	<xs:element name="hrlocatie">
-		<xs:simpleType>
-			<xs:restriction base="xs:string"/>
-		</xs:simpleType>
-	</xs:element>
-	<xs:element name="toetspeil">
-		<xs:simpleType>
-			<xs:restriction base="xs:double"/>
-		</xs:simpleType>
-	</xs:element>
-	<xs:element name="intredepunt">
-		<xs:simpleType>
-			<xs:restriction base="xs:double"/>
-		</xs:simpleType>
-	</xs:element>
-	<xs:element name="uittredepunt">
-		<xs:simpleType>
-			<xs:restriction base="xs:double"/>
-		</xs:simpleType>
-	</xs:element>
-	<xs:element name="ondergrondmodel">
-		<xs:simpleType>
-			<xs:restriction base="xs:string"/>
-		</xs:simpleType>
-	</xs:element>
-	<xs:element name="ondergrondschematisatie">
-		<xs:simpleType>
-			<xs:restriction base="xs:string"/>
-		</xs:simpleType>
-	</xs:element>
-	<xs:element name="stochast">
-		<xs:complexType>
-			<xs:sequence>
-				<xs:element ref="verwachtingswaarde"/>
-				<xs:element ref="standaardafwijking"/>
-			</xs:sequence>
-			<xs:attribute name="naam" use="required">
-				<xs:simpleType>
-					<xs:restriction base="xs:string">
-						<xs:enumeration value="polderpeil"/>
-						<xs:enumeration value="dempingsfactor"/>
-					</xs:restriction>
-				</xs:simpleType>
-			</xs:attribute>
-		</xs:complexType>
-	</xs:element>
-	<xs:element name="standaardafwijking">
-		<xs:simpleType>
-			<xs:restriction base="xs:double"/>
-		</xs:simpleType>
-	</xs:element>
-	<xs:element name="verwachtingswaarde">
-		<xs:simpleType>
-			<xs:restriction base="xs:double"/>
-		</xs:simpleType>
-	</xs:element>
+  <xs:element name="root">
+    <xs:complexType>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="berekening"/>
+        <xs:element ref="map"/>
+      </xs:choice>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="map">
+    <xs:complexType>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="berekening"/>
+        <xs:element ref="map"/>
+      </xs:choice>
+      <xs:attribute name="naam" use="required">
+        <xs:simpleType>
+          <xs:restriction base="xs:string"/>
+        </xs:simpleType>
+      </xs:attribute>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="berekening">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:choice minOccurs="0">
+          <xs:element ref="hrlocatie"/>
+          <xs:element ref="toetspeil"/>
+        </xs:choice>
+        <xs:element ref="profielschematisatie" minOccurs="0"/>
+        <xs:element ref="intredepunt" minOccurs="0"/>
+        <xs:element ref="uittredepunt" minOccurs="0"/>
+        <xs:element ref="ondergrondmodel" minOccurs="0"/>
+        <xs:element ref="ondergrondschematisatie" minOccurs="0"/>
+        <xs:element ref="stochasten" minOccurs="0"/>
+      </xs:sequence>
+      <xs:attribute name="naam" use="required">
+        <xs:simpleType>
+          <xs:restriction base="xs:string"/>
+        </xs:simpleType>
+      </xs:attribute>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="profielschematisatie">
+    <xs:simpleType>
+      <xs:restriction base="xs:string"/>
+    </xs:simpleType>
+  </xs:element>
+  <xs:element name="intredepunt">
+    <xs:simpleType>
+      <xs:restriction base="xs:double"/>
+    </xs:simpleType>
+  </xs:element>
+  <xs:element name="uittredepunt">
+    <xs:simpleType>
+      <xs:restriction base="xs:double"/>
+    </xs:simpleType>
+  </xs:element>
+  <xs:element name="ondergrondmodel">
+    <xs:simpleType>
+      <xs:restriction base="xs:string"/>
+    </xs:simpleType>
+  </xs:element>
+  <xs:element name="ondergrondschematisatie">
+    <xs:simpleType>
+      <xs:restriction base="xs:string"/>
+    </xs:simpleType>
+  </xs:element>
+  <xs:element name="hrlocatie">
+    <xs:simpleType>
+      <xs:restriction base="xs:string"/>
+    </xs:simpleType>
+  </xs:element>
+  <xs:element name="toetspeil">
+    <xs:simpleType>
+      <xs:restriction base="xs:double"/>
+    </xs:simpleType>
+  </xs:element>
+  <xs:element name="stochasten">
+    <xs:complexType>
+      <xs:choice minOccurs="0" maxOccurs="unbounded">
+        <xs:element ref="stochast"/>
+      </xs:choice>
+    </xs:complexType>
+    <xs:unique name="uniqueStochastNameConstraint">
+      <xs:selector xpath="stochast"/>
+      <xs:field xpath="@naam"/>
+    </xs:unique>
+  </xs:element>
+  <xs:element name="stochast">
+    <xs:complexType>
+      <xs:sequence>
+        <xs:element ref="verwachtingswaarde"/>
+        <xs:element ref="standaardafwijking"/>
+      </xs:sequence>
+      <xs:attribute name="naam" use="required">
+        <xs:simpleType>
+          <xs:restriction base="xs:string">
+            <xs:enumeration value="polderpeil"/>
+            <xs:enumeration value="dempingsfactor"/>
+          </xs:restriction>
+        </xs:simpleType>
+      </xs:attribute>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="standaardafwijking">
+    <xs:simpleType>
+      <xs:restriction base="xs:double"/>
+    </xs:simpleType>
+  </xs:element>
+  <xs:element name="verwachtingswaarde">
+    <xs:simpleType>
+      <xs:restriction base="xs:double"/>
+    </xs:simpleType>
+  </xs:element>
 </xs:schema>
\ No newline at end of file
Index: Ringtoets/Piping/src/Ringtoets.Piping.IO/Schema/PipingConfigurationSchemaIdentifiers.cs
===================================================================
diff -u -r785741637d6329d6f24c38c962d3442dfe9df1fb -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/src/Ringtoets.Piping.IO/Schema/PipingConfigurationSchemaIdentifiers.cs	(.../PipingConfigurationSchemaIdentifiers.cs)	(revision 785741637d6329d6f24c38c962d3442dfe9df1fb)
+++ Ringtoets/Piping/src/Ringtoets.Piping.IO/Schema/PipingConfigurationSchemaIdentifiers.cs	(.../PipingConfigurationSchemaIdentifiers.cs)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -82,6 +82,11 @@
         public static string StochasticSoilProfileElement => "ondergrondschematisatie";
 
         /// <summary>
+        /// Gets the identifier for stochasts elements.
+        /// </summary>
+        public static string StochastsElement => "stochasten";
+
+        /// <summary>
         /// Gets the identifier for stochast elements.
         /// </summary>
         public static string StochastElement => "stochast";
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/Schema/PipingConfigurationSchemaIdentifiersTest.cs
===================================================================
diff -u -r785741637d6329d6f24c38c962d3442dfe9df1fb -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/Schema/PipingConfigurationSchemaIdentifiersTest.cs	(.../PipingConfigurationSchemaIdentifiersTest.cs)	(revision 785741637d6329d6f24c38c962d3442dfe9df1fb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/Schema/PipingConfigurationSchemaIdentifiersTest.cs	(.../PipingConfigurationSchemaIdentifiersTest.cs)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -41,6 +41,7 @@
             Assert.AreEqual("uittredepunt", PipingConfigurationSchemaIdentifiers.ExitPointElement);
             Assert.AreEqual("ondergrondmodel", PipingConfigurationSchemaIdentifiers.StochasticSoilModelElement);
             Assert.AreEqual("ondergrondschematisatie", PipingConfigurationSchemaIdentifiers.StochasticSoilProfileElement);
+            Assert.AreEqual("stochasten", PipingConfigurationSchemaIdentifiers.StochastsElement);
             Assert.AreEqual("stochast", PipingConfigurationSchemaIdentifiers.StochastElement);
             Assert.AreEqual("verwachtingswaarde", PipingConfigurationSchemaIdentifiers.MeanElement);
             Assert.AreEqual("standaardafwijking", PipingConfigurationSchemaIdentifiers.StandardDeviationElement);
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidMultipleDampingFactorExitStochast.xml
===================================================================
diff -u -r44a47fde40d66f168e0c80d16c82c687dde1e5d1 -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidMultipleDampingFactorExitStochast.xml	(.../invalidMultipleDampingFactorExitStochast.xml)	(revision 44a47fde40d66f168e0c80d16c82c687dde1e5d1)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidMultipleDampingFactorExitStochast.xml	(.../invalidMultipleDampingFactorExitStochast.xml)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -1,13 +1,15 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
   <berekening naam="Calculation 2">
-    <stochast naam="dempingsfactor">
-      <verwachtingswaarde>0.000</verwachtingswaarde>
-      <standaardafwijking>0.100</standaardafwijking>
-    </stochast>
-    <stochast naam="dempingsfactor">
-      <verwachtingswaarde>0.000</verwachtingswaarde>
-      <standaardafwijking>0.100</standaardafwijking>
-    </stochast>
+    <stochasten>
+      <stochast naam="dempingsfactor">
+        <verwachtingswaarde>0.000</verwachtingswaarde>
+        <standaardafwijking>0.100</standaardafwijking>
+      </stochast>
+      <stochast naam="dempingsfactor">
+        <verwachtingswaarde>0.000</verwachtingswaarde>
+        <standaardafwijking>0.100</standaardafwijking>
+      </stochast>
+    </stochasten>
   </berekening>
 </root>
\ No newline at end of file
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidMultiplePhreaticLevelExitStochast.xml
===================================================================
diff -u -r44a47fde40d66f168e0c80d16c82c687dde1e5d1 -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidMultiplePhreaticLevelExitStochast.xml	(.../invalidMultiplePhreaticLevelExitStochast.xml)	(revision 44a47fde40d66f168e0c80d16c82c687dde1e5d1)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidMultiplePhreaticLevelExitStochast.xml	(.../invalidMultiplePhreaticLevelExitStochast.xml)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -1,13 +1,15 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
   <berekening naam="Calculation 2">
-    <stochast naam="polderpeil">
-      <verwachtingswaarde>0.000</verwachtingswaarde>
-      <standaardafwijking>0.100</standaardafwijking>
-    </stochast>
-    <stochast naam="polderpeil">
-      <verwachtingswaarde>0.000</verwachtingswaarde>
-      <standaardafwijking>0.100</standaardafwijking>
-    </stochast>
+    <stochasten>
+      <stochast naam="polderpeil">
+        <verwachtingswaarde>0.000</verwachtingswaarde>
+        <standaardafwijking>0.100</standaardafwijking>
+      </stochast>
+      <stochast naam="polderpeil">
+        <verwachtingswaarde>0.000</verwachtingswaarde>
+        <standaardafwijking>0.100</standaardafwijking>
+      </stochast>
+    </stochasten>
   </berekening>
 </root>
\ No newline at end of file
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastMeanEmpty.xml
===================================================================
diff -u -ree94c927bb860c7db9e4035f82aef305809e56fb -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastMeanEmpty.xml	(.../invalidStochastMeanEmpty.xml)	(revision ee94c927bb860c7db9e4035f82aef305809e56fb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastMeanEmpty.xml	(.../invalidStochastMeanEmpty.xml)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -1,9 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
   <berekening naam="Calculation">
-    <stochast naam="polderpeil">
-      <verwachtingswaarde></verwachtingswaarde>
-      <standaardafwijking>0.100</standaardafwijking>
-    </stochast>
+    <stochasten>
+      <stochast naam="polderpeil">
+        <verwachtingswaarde></verwachtingswaarde>
+        <standaardafwijking>0.100</standaardafwijking>
+      </stochast>
+    </stochasten>
   </berekening>
 </root>
\ No newline at end of file
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastMeanNoDouble.xml
===================================================================
diff -u -ree94c927bb860c7db9e4035f82aef305809e56fb -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastMeanNoDouble.xml	(.../invalidStochastMeanNoDouble.xml)	(revision ee94c927bb860c7db9e4035f82aef305809e56fb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastMeanNoDouble.xml	(.../invalidStochastMeanNoDouble.xml)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -1,9 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
   <berekening naam="Calculation">
-    <stochast naam="polderpeil">
-      <verwachtingswaarde>string</verwachtingswaarde>
-      <standaardafwijking>0.100</standaardafwijking>
-    </stochast>
+    <stochasten>
+      <stochast naam="polderpeil">
+        <verwachtingswaarde>string</verwachtingswaarde>
+        <standaardafwijking>0.100</standaardafwijking>
+      </stochast>
+    </stochasten>
   </berekening>
 </root>
\ No newline at end of file
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastMeanWrongCulture.xml
===================================================================
diff -u -ree94c927bb860c7db9e4035f82aef305809e56fb -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastMeanWrongCulture.xml	(.../invalidStochastMeanWrongCulture.xml)	(revision ee94c927bb860c7db9e4035f82aef305809e56fb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastMeanWrongCulture.xml	(.../invalidStochastMeanWrongCulture.xml)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -1,9 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
   <berekening naam="Calculation">
-    <stochast naam="polderpeil">
-      <verwachtingswaarde>1,2</verwachtingswaarde>
-      <standaardafwijking>0.100</standaardafwijking>
-    </stochast>
+    <stochasten>
+      <stochast naam="polderpeil">
+        <verwachtingswaarde>1,2</verwachtingswaarde>
+        <standaardafwijking>0.100</standaardafwijking>
+      </stochast>
+    </stochasten>
   </berekening>
 </root>
\ No newline at end of file
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastMultipleMean.xml
===================================================================
diff -u -r6835c51cae9647d743599fe0fdab49cf7beb3aab -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastMultipleMean.xml	(.../invalidStochastMultipleMean.xml)	(revision 6835c51cae9647d743599fe0fdab49cf7beb3aab)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastMultipleMean.xml	(.../invalidStochastMultipleMean.xml)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -1,10 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
   <berekening naam="Calculation">
-    <stochast naam="polderpeil">
-      <verwachtingswaarde>0.000</verwachtingswaarde>
-      <verwachtingswaarde>1.000</verwachtingswaarde>
-      <standaardafwijking>0.100</standaardafwijking>
-    </stochast>
+    <stochasten>
+      <stochast naam="polderpeil">
+        <verwachtingswaarde>0.000</verwachtingswaarde>
+        <verwachtingswaarde>1.000</verwachtingswaarde>
+        <standaardafwijking>0.100</standaardafwijking>
+      </stochast>
+    </stochasten>
   </berekening>
 </root>
\ No newline at end of file
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastMultipleStandardDeviation.xml
===================================================================
diff -u -r6835c51cae9647d743599fe0fdab49cf7beb3aab -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastMultipleStandardDeviation.xml	(.../invalidStochastMultipleStandardDeviation.xml)	(revision 6835c51cae9647d743599fe0fdab49cf7beb3aab)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastMultipleStandardDeviation.xml	(.../invalidStochastMultipleStandardDeviation.xml)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -1,10 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
   <berekening naam="Calculation">
-    <stochast naam="polderpeil">
-      <verwachtingswaarde>0.000</verwachtingswaarde>
-      <standaardafwijking>0.100</standaardafwijking>
-      <standaardafwijking>0.200</standaardafwijking>
-    </stochast>
+    <stochasten>
+      <stochast naam="polderpeil">
+        <verwachtingswaarde>0.000</verwachtingswaarde>
+        <standaardafwijking>0.100</standaardafwijking>
+        <standaardafwijking>0.200</standaardafwijking>
+      </stochast>
+    </stochasten>
   </berekening>
 </root>
\ No newline at end of file
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastNoMean.xml
===================================================================
diff -u -r6835c51cae9647d743599fe0fdab49cf7beb3aab -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastNoMean.xml	(.../invalidStochastNoMean.xml)	(revision 6835c51cae9647d743599fe0fdab49cf7beb3aab)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastNoMean.xml	(.../invalidStochastNoMean.xml)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -1,8 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
   <berekening naam="Calculation">
-    <stochast naam="polderpeil">
-      <standaardafwijking>0.100</standaardafwijking>
-    </stochast>
+    <stochasten>
+      <stochast naam="polderpeil">
+        <standaardafwijking>0.100</standaardafwijking>
+      </stochast>
+    </stochasten>
   </berekening>
 </root>
\ No newline at end of file
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastNoName.xml
===================================================================
diff -u -r6835c51cae9647d743599fe0fdab49cf7beb3aab -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastNoName.xml	(.../invalidStochastNoName.xml)	(revision 6835c51cae9647d743599fe0fdab49cf7beb3aab)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastNoName.xml	(.../invalidStochastNoName.xml)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -1,9 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
   <berekening naam="Calculation">
-    <stochast>
-      <verwachtingswaarde>0.000</verwachtingswaarde>
-      <standaardafwijking>0.100</standaardafwijking>
-    </stochast>
+    <stochasten>
+      <stochast>
+        <verwachtingswaarde>0.000</verwachtingswaarde>
+        <standaardafwijking>0.100</standaardafwijking>
+      </stochast>
+    </stochasten>
   </berekening>
 </root>
\ No newline at end of file
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastNoStandardDeviation.xml
===================================================================
diff -u -r6835c51cae9647d743599fe0fdab49cf7beb3aab -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastNoStandardDeviation.xml	(.../invalidStochastNoStandardDeviation.xml)	(revision 6835c51cae9647d743599fe0fdab49cf7beb3aab)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastNoStandardDeviation.xml	(.../invalidStochastNoStandardDeviation.xml)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -1,8 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
   <berekening naam="Calculation">
-    <stochast naam="polderpeil">
-      <verwachtingswaarde>0.000</verwachtingswaarde>
-    </stochast>
+    <stochasten>
+      <stochast naam="polderpeil">
+        <verwachtingswaarde>0.000</verwachtingswaarde>
+      </stochast>
+    </stochasten>
   </berekening>
 </root>
\ No newline at end of file
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastStandardDeviationEmpty.xml
===================================================================
diff -u -ree94c927bb860c7db9e4035f82aef305809e56fb -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastStandardDeviationEmpty.xml	(.../invalidStochastStandardDeviationEmpty.xml)	(revision ee94c927bb860c7db9e4035f82aef305809e56fb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastStandardDeviationEmpty.xml	(.../invalidStochastStandardDeviationEmpty.xml)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -1,9 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
   <berekening naam="Calculation">
-    <stochast naam="polderpeil">
-      <verwachtingswaarde>0.000</verwachtingswaarde>
-      <standaardafwijking></standaardafwijking>
-    </stochast>
+    <stochasten>
+      <stochast naam="polderpeil">
+        <verwachtingswaarde>0.000</verwachtingswaarde>
+        <standaardafwijking></standaardafwijking>
+      </stochast>
+    </stochasten>
   </berekening>
 </root>
\ No newline at end of file
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastStandardDeviationNoDouble.xml
===================================================================
diff -u -ree94c927bb860c7db9e4035f82aef305809e56fb -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastStandardDeviationNoDouble.xml	(.../invalidStochastStandardDeviationNoDouble.xml)	(revision ee94c927bb860c7db9e4035f82aef305809e56fb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastStandardDeviationNoDouble.xml	(.../invalidStochastStandardDeviationNoDouble.xml)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -1,9 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
   <berekening naam="Calculation">
-    <stochast naam="polderpeil">
-      <verwachtingswaarde>0.000</verwachtingswaarde>
-      <standaardafwijking>string</standaardafwijking>
-    </stochast>
+    <stochasten>
+      <stochast naam="polderpeil">
+        <verwachtingswaarde>0.000</verwachtingswaarde>
+        <standaardafwijking>string</standaardafwijking>
+      </stochast>
+    </stochasten>
   </berekening>
 </root>
\ No newline at end of file
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastStandardDeviationWrongCulture.xml
===================================================================
diff -u -ree94c927bb860c7db9e4035f82aef305809e56fb -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastStandardDeviationWrongCulture.xml	(.../invalidStochastStandardDeviationWrongCulture.xml)	(revision ee94c927bb860c7db9e4035f82aef305809e56fb)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastStandardDeviationWrongCulture.xml	(.../invalidStochastStandardDeviationWrongCulture.xml)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -1,9 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
   <berekening naam="Calculation">
-    <stochast naam="polderpeil">
-      <verwachtingswaarde>0.000</verwachtingswaarde>
-      <standaardafwijking>1,2</standaardafwijking>
-    </stochast>
+    <stochasten>
+      <stochast naam="polderpeil">
+        <verwachtingswaarde>0.000</verwachtingswaarde>
+        <standaardafwijking>1,2</standaardafwijking>
+      </stochast>
+    </stochasten>
   </berekening>
 </root>
\ No newline at end of file
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastUnknownName.xml
===================================================================
diff -u -r6835c51cae9647d743599fe0fdab49cf7beb3aab -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastUnknownName.xml	(.../invalidStochastUnknownName.xml)	(revision 6835c51cae9647d743599fe0fdab49cf7beb3aab)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/invalidStochastUnknownName.xml	(.../invalidStochastUnknownName.xml)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -1,9 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
   <berekening naam="Calculation">
-    <stochast naam="Test">
-      <verwachtingswaarde>0.000</verwachtingswaarde>
-      <standaardafwijking>0.100</standaardafwijking>
-    </stochast>
+    <stochasten>
+      <stochast naam="Test">
+        <verwachtingswaarde>0.000</verwachtingswaarde>
+        <standaardafwijking>0.100</standaardafwijking>
+      </stochast>
+    </stochasten>
   </berekening>
 </root>
\ No newline at end of file
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/validConfigurationCalculationContainingNaNs.xml
===================================================================
diff -u -r44a47fde40d66f168e0c80d16c82c687dde1e5d1 -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/validConfigurationCalculationContainingNaNs.xml	(.../validConfigurationCalculationContainingNaNs.xml)	(revision 44a47fde40d66f168e0c80d16c82c687dde1e5d1)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/validConfigurationCalculationContainingNaNs.xml	(.../validConfigurationCalculationContainingNaNs.xml)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -4,13 +4,15 @@
     <toetspeil>NaN</toetspeil>
     <intredepunt>NaN</intredepunt>
     <uittredepunt>NaN</uittredepunt>
-    <stochast naam="polderpeil">
-      <verwachtingswaarde>NaN</verwachtingswaarde>
-      <standaardafwijking>NaN</standaardafwijking>
-    </stochast>
-    <stochast naam="dempingsfactor">
-      <verwachtingswaarde>NaN</verwachtingswaarde>
-      <standaardafwijking>NaN</standaardafwijking>
-    </stochast>
+    <stochasten>
+      <stochast naam="polderpeil">
+        <verwachtingswaarde>NaN</verwachtingswaarde>
+        <standaardafwijking>NaN</standaardafwijking>
+      </stochast>
+      <stochast naam="dempingsfactor">
+        <verwachtingswaarde>NaN</verwachtingswaarde>
+        <standaardafwijking>NaN</standaardafwijking>
+      </stochast>
+    </stochasten>
   </berekening>
 </root>
\ No newline at end of file
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/validConfigurationFullCalculationContainingAssessmentLevel.xml
===================================================================
diff -u -r44a47fde40d66f168e0c80d16c82c687dde1e5d1 -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/validConfigurationFullCalculationContainingAssessmentLevel.xml	(.../validConfigurationFullCalculationContainingAssessmentLevel.xml)	(revision 44a47fde40d66f168e0c80d16c82c687dde1e5d1)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/validConfigurationFullCalculationContainingAssessmentLevel.xml	(.../validConfigurationFullCalculationContainingAssessmentLevel.xml)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -7,13 +7,15 @@
     <uittredepunt>3.3</uittredepunt>
     <ondergrondmodel>Ondergrondmodel</ondergrondmodel>
     <ondergrondschematisatie>Ondergrondschematisatie</ondergrondschematisatie>
-    <stochast naam="polderpeil">
-      <verwachtingswaarde>4.4</verwachtingswaarde>
-      <standaardafwijking>5.5</standaardafwijking>
-    </stochast>
-    <stochast naam="dempingsfactor">
-      <verwachtingswaarde>6.6</verwachtingswaarde>
-      <standaardafwijking>7.7</standaardafwijking>
-    </stochast>
+    <stochasten>
+      <stochast naam="polderpeil">
+        <verwachtingswaarde>4.4</verwachtingswaarde>
+        <standaardafwijking>5.5</standaardafwijking>
+      </stochast>
+      <stochast naam="dempingsfactor">
+        <verwachtingswaarde>6.6</verwachtingswaarde>
+        <standaardafwijking>7.7</standaardafwijking>
+      </stochast>
+    </stochasten>
   </berekening>
 </root>
\ No newline at end of file
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/validConfigurationFullCalculationContainingHydraulicBoundaryLocation.xml
===================================================================
diff -u -rfde9fb747c4afe9b3c32a80e1efeef24b535decd -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/validConfigurationFullCalculationContainingHydraulicBoundaryLocation.xml	(.../validConfigurationFullCalculationContainingHydraulicBoundaryLocation.xml)	(revision fde9fb747c4afe9b3c32a80e1efeef24b535decd)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/validConfigurationFullCalculationContainingHydraulicBoundaryLocation.xml	(.../validConfigurationFullCalculationContainingHydraulicBoundaryLocation.xml)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -7,13 +7,15 @@
     <uittredepunt>3.3</uittredepunt>
     <ondergrondmodel>Ondergrondmodel</ondergrondmodel>
     <ondergrondschematisatie>Ondergrondschematisatie</ondergrondschematisatie>
-    <stochast naam="polderpeil">
-      <verwachtingswaarde>4.4</verwachtingswaarde>
-      <standaardafwijking>5.5</standaardafwijking>
-    </stochast>
-    <stochast naam="dempingsfactor">
-      <verwachtingswaarde>6.6</verwachtingswaarde>
-      <standaardafwijking>7.7</standaardafwijking>
-    </stochast>
+    <stochasten>
+      <stochast naam="polderpeil">
+        <verwachtingswaarde>4.4</verwachtingswaarde>
+        <standaardafwijking>5.5</standaardafwijking>
+      </stochast>
+      <stochast naam="dempingsfactor">
+        <verwachtingswaarde>6.6</verwachtingswaarde>
+        <standaardafwijking>7.7</standaardafwijking>
+      </stochast>
+    <stochasten>
   </berekening>
 </root>
\ No newline at end of file
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/validConfigurationPartialCalculation.xml
===================================================================
diff -u -r63beeaa6acab32952682e4aa56bba62b4c2b45c5 -rf648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/validConfigurationPartialCalculation.xml	(.../validConfigurationPartialCalculation.xml)	(revision 63beeaa6acab32952682e4aa56bba62b4c2b45c5)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/test-data/PipingConfigurationReader/validConfigurationPartialCalculation.xml	(.../validConfigurationPartialCalculation.xml)	(revision f648a2ccf55c5a0f35eed517e3d2f6d9ded20ab7)
@@ -4,9 +4,11 @@
     <toetspeil>1.1</toetspeil>
     <uittredepunt>2.2</uittredepunt>
     <ondergrondschematisatie>Ondergrondschematisatie</ondergrondschematisatie>
-    <stochast naam="polderpeil">
-      <verwachtingswaarde>3.3</verwachtingswaarde>
-      <standaardafwijking>4.4</standaardafwijking>
-    </stochast>
+    <stochasten>
+      <stochast naam="polderpeil">
+        <verwachtingswaarde>3.3</verwachtingswaarde>
+        <standaardafwijking>4.4</standaardafwijking>
+      </stochast>
+    </stochasten>
   </berekening>
 </root>
\ No newline at end of file