Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.IO/HydraulicLocationConfigurationDatabase/ReadHydraulicLocationConfigurationDatabase.cs
===================================================================
diff -u -r32359c67b64acdc5f4f19aa06309f24263831b0d -r7035927ff4dd773500d6b0fbd1e5b0d2919e6021
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.IO/HydraulicLocationConfigurationDatabase/ReadHydraulicLocationConfigurationDatabase.cs	(.../ReadHydraulicLocationConfigurationDatabase.cs)	(revision 32359c67b64acdc5f4f19aa06309f24263831b0d)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.IO/HydraulicLocationConfigurationDatabase/ReadHydraulicLocationConfigurationDatabase.cs	(.../ReadHydraulicLocationConfigurationDatabase.cs)	(revision 7035927ff4dd773500d6b0fbd1e5b0d2919e6021)
@@ -32,15 +32,6 @@
         /// <summary>
         /// Creates a new instance of <see cref="ReadHydraulicLocationConfigurationDatabase"/>.
         /// </summary>
-        /// <param name="locationIds">The location ids of the read hydraulic location configuration database.</param>
-        internal ReadHydraulicLocationConfigurationDatabase(Dictionary<long, long> locationIds)
-        {
-            LocationIds = locationIds;
-        }
-
-        /// <summary>
-        /// Creates a new instance of <see cref="ReadHydraulicLocationConfigurationDatabase"/>.
-        /// </summary>
         /// <param name="locationIdMappings">The location id mappings of the read hydraulic location
         /// configuration database.</param>
         /// <exception cref="ArgumentNullException">Thrown when <paramref name="locationIdMappings"/>
@@ -56,11 +47,6 @@
         }
 
         /// <summary>
-        /// Gets the location ids of the read hydraulic location configuration database.
-        /// </summary>
-        public Dictionary<long, long> LocationIds { get; }
-
-        /// <summary>
         /// Gets the location id mappings of the read hydraulic location configuration database.
         /// </summary>
         public IEnumerable<ReadHydraulicLocationMapping> LocationIdMappings { get; }
Index: Ringtoets/HydraRing/test/Ringtoets.HydraRing.IO.Test/HydraulicLocationConfigurationDatabase/ReadHydraulicLocationConfigurationDatabaseTest.cs
===================================================================
diff -u -r32359c67b64acdc5f4f19aa06309f24263831b0d -r7035927ff4dd773500d6b0fbd1e5b0d2919e6021
--- Ringtoets/HydraRing/test/Ringtoets.HydraRing.IO.Test/HydraulicLocationConfigurationDatabase/ReadHydraulicLocationConfigurationDatabaseTest.cs	(.../ReadHydraulicLocationConfigurationDatabaseTest.cs)	(revision 32359c67b64acdc5f4f19aa06309f24263831b0d)
+++ Ringtoets/HydraRing/test/Ringtoets.HydraRing.IO.Test/HydraulicLocationConfigurationDatabase/ReadHydraulicLocationConfigurationDatabaseTest.cs	(.../ReadHydraulicLocationConfigurationDatabaseTest.cs)	(revision 7035927ff4dd773500d6b0fbd1e5b0d2919e6021)
@@ -1,4 +1,4 @@
-// Copyright (C) Stichting Deltares 2018. All rights reserved.
+// Copyright (C) Stichting Deltares 2018. All rights reserved.
 //
 // This file is part of Ringtoets.
 //
@@ -33,19 +33,6 @@
         public void Constructor_ExpectedValues()
         {
             // Setup
-            var locationIds = new Dictionary<long, long>();
-
-            // Call
-            var readDatabase = new ReadHydraulicLocationConfigurationDatabase(locationIds);
-
-            // Assert
-            Assert.AreSame(locationIds, readDatabase.LocationIds);
-        }
-
-        [Test]
-        public void Constructor_WithMapping_ExpectedValues()
-        {
-            // Setup
             IEnumerable<ReadHydraulicLocationMapping> locationIdMappings = Enumerable.Empty<ReadHydraulicLocationMapping>();
 
             // Call
Index: Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Importers/HydraulicBoundaryDatabaseImporterTest.cs
===================================================================
diff -u -r5911af49921816d34048dc19b0acd9bc33d98885 -r7035927ff4dd773500d6b0fbd1e5b0d2919e6021
--- Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Importers/HydraulicBoundaryDatabaseImporterTest.cs	(.../HydraulicBoundaryDatabaseImporterTest.cs)	(revision 5911af49921816d34048dc19b0acd9bc33d98885)
+++ Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Importers/HydraulicBoundaryDatabaseImporterTest.cs	(.../HydraulicBoundaryDatabaseImporterTest.cs)	(revision 7035927ff4dd773500d6b0fbd1e5b0d2919e6021)
@@ -290,7 +290,7 @@
                        AssertReadHydraulicBoundaryDatabase((ReadHydraulicBoundaryDatabase) invocation.Arguments[1]);
 
                        var readHydraulicLocationConfigurationDatabase = (ReadHydraulicLocationConfigurationDatabase) invocation.Arguments[2];
-                       Assert.AreEqual(18, readHydraulicLocationConfigurationDatabase.LocationIds.Count);
+                       Assert.AreEqual(18, readHydraulicLocationConfigurationDatabase.LocationIdMappings.Count());
                    })
                    .Return(Enumerable.Empty<IObservable>());
             mocks.ReplayAll();