Index: Ringtoets/Piping/src/Ringtoets.Piping.Primitives/PipingSoilProfile.cs
===================================================================
diff -u -r2ed0db8299205024c1c6b1eb10da05f588f5d649 -r5061321f2f8b942937713732163d9e55f2acb176
--- Ringtoets/Piping/src/Ringtoets.Piping.Primitives/PipingSoilProfile.cs	(.../PipingSoilProfile.cs)	(revision 2ed0db8299205024c1c6b1eb10da05f588f5d649)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Primitives/PipingSoilProfile.cs	(.../PipingSoilProfile.cs)	(revision 5061321f2f8b942937713732163d9e55f2acb176)
@@ -94,6 +94,11 @@
         public SoilProfileType SoilProfileType { get; private set; }
 
         /// <summary>
+        /// Gets or sets the unique identifier for the storage of the <see cref="PipingSoilProfile"/>.
+        /// </summary>
+        public long StorageId { get; set; }
+
+        /// <summary>
         /// Gets the thickness of the given layer in the <see cref="PipingSoilProfile"/>.
         /// Thickness of a layer is determined by its top and the top of the layer below it.
         /// </summary>