Index: Ringtoets/Common/test/Ringtoets.Common.IO.Test/SoilProfile/PreconsolidationStressReaderTest.cs
===================================================================
diff -u -rc22b5c73c2ff2c70407477e6fcf7558309513cb6 -rdf8e710d2bb40eb4f601e1da9f1c87393923c898
--- Ringtoets/Common/test/Ringtoets.Common.IO.Test/SoilProfile/PreconsolidationStressReaderTest.cs	(.../PreconsolidationStressReaderTest.cs)	(revision c22b5c73c2ff2c70407477e6fcf7558309513cb6)
+++ Ringtoets/Common/test/Ringtoets.Common.IO.Test/SoilProfile/PreconsolidationStressReaderTest.cs	(.../PreconsolidationStressReaderTest.cs)	(revision df8e710d2bb40eb4f601e1da9f1c87393923c898)
@@ -20,6 +20,7 @@
 // All rights reserved.
 
 using System;
+using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using Core.Common.Base.IO;
@@ -201,7 +202,7 @@
                 reader.Initialize();
 
                 // Call
-                PreconsolidationStress[] preconsolidationStresses = reader.ReadPreconsolidationStresses().ToArray();
+                PreconsolidationStress[] preconsolidationStresses = reader.ReadPreconsolidationStresses(1).ToArray();
 
                 // Assert
                 Assert.AreEqual(4, preconsolidationStresses.Length);
@@ -265,7 +266,7 @@
                 reader.Initialize();
 
                 // Call
-                PreconsolidationStress[] preconsolidationStresses = reader.ReadPreconsolidationStresses().ToArray();
+                PreconsolidationStress[] preconsolidationStresses = reader.ReadPreconsolidationStresses(1).ToArray();
 
                 // Assert
                 Assert.AreEqual(1, preconsolidationStresses.Length);
@@ -281,5 +282,25 @@
 
             Assert.IsTrue(TestHelper.CanOpenFileForWrite(dbFile));
         }
+
+        [Test]
+        public void ReadPreconsolidationStresses_UnknownSoilProfileId_ReturnsEmptyPreconsolidationStress()
+        {
+            // Setup
+            string dbFile = Path.Combine(testDataPath, "2dprofileWithPreconsolidationStressesNullValues.soil");
+
+            using (var reader = new PreconsolidationStressReader(dbFile))
+            {
+                reader.Initialize();
+
+                // Call
+                IEnumerable<PreconsolidationStress> preconsolidationStresses = reader.ReadPreconsolidationStresses(2);
+
+                // Assert
+                CollectionAssert.IsEmpty(preconsolidationStresses);
+            }
+
+            Assert.IsTrue(TestHelper.CanOpenFileForWrite(dbFile));
+        }
     }
 }
\ No newline at end of file