Index: DamEngine/trunk/src/Deltares.DamEngine.Interface.Tests/FillDamFromXmlInputTests.cs
===================================================================
diff -u -r1268 -r1405
--- DamEngine/trunk/src/Deltares.DamEngine.Interface.Tests/FillDamFromXmlInputTests.cs	(.../FillDamFromXmlInputTests.cs)	(revision 1268)
+++ DamEngine/trunk/src/Deltares.DamEngine.Interface.Tests/FillDamFromXmlInputTests.cs	(.../FillDamFromXmlInputTests.cs)	(revision 1405)
@@ -105,13 +105,23 @@
             Dike dike = damProjectData.Dike;
             FillSurfaceLines(dike);
             FillSoils(dike);
+            FillAquiferSoils(dike.SoilList);
             FillSoilProfiles1D(dike);
             FillSoilProfiles2D(dike);
             FillSegments(damProjectData);
             FillLocations(dike, damProjectData.Segments, damProjectData.ProjectPath);
             return damProjectData;
         }
 
+        private void FillAquiferSoils(SoilList soilList)
+        {
+            for (int i = 0; i < soilList.Soils.Count; i++)
+            {
+                // All even indeces are set to true, all odd indices are set to false
+                soilList.AquiferDictionary.Add(soilList.Soils[i], (i % 2) == 0);
+            }
+        }
+
         private static void FillAnalysisSpecification(DamProjectData damProjectData)
         {
             damProjectData.DamProjectType = DamProjectType.Design;
Index: DamEngine/trunk/xsd/DamInput.xsd
===================================================================
diff -u -r1192 -r1405
--- DamEngine/trunk/xsd/DamInput.xsd	(.../DamInput.xsd)	(revision 1192)
+++ DamEngine/trunk/xsd/DamInput.xsd	(.../DamInput.xsd)	(revision 1405)
@@ -53,6 +53,18 @@
         </xs:complexType>
       </xs:element>
       <xs:element name="StabilityParameters" type="StabilityParameters" />
+      <xs:element name="AquiferSoils" nillable="true">
+        <xs:complexType>
+          <xs:sequence>
+            <xs:element minOccurs="0" maxOccurs="unbounded" name="AquiferSoil">
+              <xs:complexType>
+                <xs:attribute name="Soilname" type="xs:string" use="required" />
+                <xs:attribute name="IsAquifer" type="xs:boolean" use="required" />
+              </xs:complexType>
+            </xs:element>
+          </xs:sequence>
+        </xs:complexType>
+      </xs:element>
     </xs:sequence>
     <xs:attribute name="DamProjectType" use="required">
       <xs:simpleType>
Index: DamEngine/trunk/src/Deltares.DamEngine.Interface/FillDamFromXmlInput.cs
===================================================================
diff -u -r1382 -r1405
--- DamEngine/trunk/src/Deltares.DamEngine.Interface/FillDamFromXmlInput.cs	(.../FillDamFromXmlInput.cs)	(revision 1382)
+++ DamEngine/trunk/src/Deltares.DamEngine.Interface/FillDamFromXmlInput.cs	(.../FillDamFromXmlInput.cs)	(revision 1405)
@@ -69,6 +69,7 @@
             TransferSurfaceLines(input.SurfaceLines, dike.SurfaceLines2);
             dike.SoilList = new SoilList();
             TransferSoils(input.Soils, dike.SoilList.Soils);
+            TransferAquiferSoils(input.AquiferSoils, dike.SoilList);
             TransferSoilProfiles1D(input.SoilProfiles1D, dike.SoilProfiles, dike.SoilList);
             TransferSoilProfiles2D(input.SoilProfiles2D, dike.SoilProfiles2D, dike.SoilList);
             TransferSegments(input.Segments, damProjectData.Segments);
@@ -78,6 +79,17 @@
             return damProjectData;
         }
 
+        private static void TransferAquiferSoils(InputAquiferSoil[] inputAquiferSoils, SoilList soilList)
+        {
+            if (inputAquiferSoils != null)
+            {
+                soilList.AquiferDictionary = new Dictionary<Data.Geotechnics.Soil, bool>();
+                foreach (InputAquiferSoil aquiferSoil in inputAquiferSoils) {
+                    soilList.AquiferDictionary.Add(soilList.GetSoilByName(aquiferSoil.Soilname), aquiferSoil.IsAquifer);
+                }
+            }
+        }
+
         private static void TransferAnalysisSpecification(Input input, DamProjectData damProjectData)
         {
             damProjectData.DamProjectType = ConversionHelper.ConvertToDamProjectType(input.DamProjectType);
Index: DamEngine/trunk/src/Deltares.DamEngine.Io/DamInput.cs
===================================================================
diff -u -r1382 -r1405
--- DamEngine/trunk/src/Deltares.DamEngine.Io/DamInput.cs	(.../DamInput.cs)	(revision 1382)
+++ DamEngine/trunk/src/Deltares.DamEngine.Io/DamInput.cs	(.../DamInput.cs)	(revision 1405)
@@ -37,6 +37,8 @@
         
         private StabilityParameters stabilityParametersField;
         
+        private InputAquiferSoil[] aquiferSoilsField;
+        
         private InputDamProjectType damProjectTypeField;
         
         private int failureMechanismSystemTypeField;
@@ -138,6 +140,18 @@
         }
         
         /// <remarks/>
+        [System.Xml.Serialization.XmlArrayAttribute(IsNullable=true)]
+        [System.Xml.Serialization.XmlArrayItemAttribute("AquiferSoil", IsNullable=false)]
+        public InputAquiferSoil[] AquiferSoils {
+            get {
+                return this.aquiferSoilsField;
+            }
+            set {
+                this.aquiferSoilsField = value;
+            }
+        }
+        
+        /// <remarks/>
         [System.Xml.Serialization.XmlAttributeAttribute()]
         public InputDamProjectType DamProjectType {
             get {
@@ -3909,7 +3923,42 @@
     /// <remarks/>
     [System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.6.1055.0")]
     [System.SerializableAttribute()]
+    [System.Diagnostics.DebuggerStepThroughAttribute()]
+    [System.ComponentModel.DesignerCategoryAttribute("code")]
     [System.Xml.Serialization.XmlTypeAttribute(AnonymousType=true)]
+    public partial class InputAquiferSoil {
+        
+        private string soilnameField;
+        
+        private bool isAquiferField;
+        
+        /// <remarks/>
+        [System.Xml.Serialization.XmlAttributeAttribute()]
+        public string Soilname {
+            get {
+                return this.soilnameField;
+            }
+            set {
+                this.soilnameField = value;
+            }
+        }
+        
+        /// <remarks/>
+        [System.Xml.Serialization.XmlAttributeAttribute()]
+        public bool IsAquifer {
+            get {
+                return this.isAquiferField;
+            }
+            set {
+                this.isAquiferField = value;
+            }
+        }
+    }
+    
+    /// <remarks/>
+    [System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.6.1055.0")]
+    [System.SerializableAttribute()]
+    [System.Xml.Serialization.XmlTypeAttribute(AnonymousType=true)]
     public enum InputDamProjectType {
         
         /// <remarks/>
Index: DamEngine/trunk/src/Deltares.DamEngine.Interface/FillXmlInputFromDam.cs
===================================================================
diff -u -r1382 -r1405
--- DamEngine/trunk/src/Deltares.DamEngine.Interface/FillXmlInputFromDam.cs	(.../FillXmlInputFromDam.cs)	(revision 1382)
+++ DamEngine/trunk/src/Deltares.DamEngine.Interface/FillXmlInputFromDam.cs	(.../FillXmlInputFromDam.cs)	(revision 1405)
@@ -63,6 +63,7 @@
             TransferSurfaceLines(dike.SurfaceLines2, input.SurfaceLines);
             input.Soils = new Soil[dike.SoilList.Soils.Count];
             TransferSoils(dike.SoilList.Soils, input.Soils);
+            TransferAquiferSoils(dike.SoilList.AquiferDictionary, input);
             if (dike.SoilProfiles != null)
             {
                 var profilesCount = dike.SoilProfiles.Count;
@@ -83,6 +84,26 @@
             return input;
         }
 
+        private static void TransferAquiferSoils(Dictionary<Data.Geotechnics.Soil, bool> aquiferDictionary, Input input)
+        {
+            InputAquiferSoil[] aquiferSoils;
+            if (aquiferDictionary != null && aquiferDictionary.Count > 0)
+            {
+                aquiferSoils = new InputAquiferSoil[aquiferDictionary.Count];
+                int soilIndex = 0;
+                foreach (KeyValuePair<Data.Geotechnics.Soil, bool> keyValuePair in aquiferDictionary)
+                {
+                    aquiferSoils[soilIndex] = new InputAquiferSoil() {Soilname = keyValuePair.Key.Name, IsAquifer = keyValuePair.Value};
+                    soilIndex++;
+                }
+            }
+            else
+            {
+                aquiferSoils = null;
+            }
+            input.AquiferSoils = aquiferSoils;
+        }
+
         private static void TransferAnalysisSpecification(DamProjectData damProjectData, Input input)
         {
             input.DamProjectType = ConversionHelper.ConvertToInputDamProjectType(damProjectData.DamProjectType);