Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Data/Input/HydraRingCalculationSettings.cs
===================================================================
diff -u -rd479aa88d66f9a5a61008baeb9d7e26a99fefa93 -r95aa30905727b2c07ff6c4c598e12d98bd4b76d3
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Data/Input/HydraRingCalculationSettings.cs	(.../HydraRingCalculationSettings.cs)	(revision d479aa88d66f9a5a61008baeb9d7e26a99fefa93)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Data/Input/HydraRingCalculationSettings.cs	(.../HydraRingCalculationSettings.cs)	(revision 95aa30905727b2c07ff6c4c598e12d98bd4b76d3)
@@ -11,42 +11,31 @@
         /// <summary>
         /// Creates a new instance of <see cref="HydraRingCalculationSettings"/>.
         /// </summary>
-        /// <param name="hydraulicBoundaryDatabaseFilePath">The path which points to the hydraulic boundary
-        /// database file.</param>
-        /// <param name="hydraulicBoundaryLocationsConfigurationFilePath">The path which points to
-        /// the hydraulic boundary locations configuration file.</param>
+        /// <param name="hlcdFilePath">The path which points to the HLCD file.</param>
         /// <param name="preprocessorDirectory">The preprocessor directory to be used for the calculations.</param>
-        /// <exception cref="ArgumentNullException">Thrown when <paramref name="preprocessorDirectory"/>
+        /// <exception cref="ArgumentNullException">Thrown when any parameter is null
         /// is <c>null</c></exception>
-        /// <exception cref="ArgumentException">Thrown when <paramref name="hydraulicBoundaryDatabaseFilePath"/>
-        /// or <paramref name="hydraulicBoundaryLocationsConfigurationFilePath"/>of the input parameters contains invalid
-        /// characters.</exception>
-        public HydraRingCalculationSettings(string hydraulicBoundaryDatabaseFilePath,
-                                            string hydraulicBoundaryLocationsConfigurationFilePath,
+        public HydraRingCalculationSettings(string hlcdFilePath,
                                             string preprocessorDirectory)
         {
+            if (hlcdFilePath == null)
+            {
+                throw new ArgumentNullException(nameof(hlcdFilePath));
+            }
+
             if (preprocessorDirectory == null)
             {
                 throw new ArgumentNullException(nameof(preprocessorDirectory));
             }
 
-            IOUtils.ValidateFilePath(hydraulicBoundaryDatabaseFilePath);
-            IOUtils.ValidateFilePath(hydraulicBoundaryLocationsConfigurationFilePath);
-
-            HydraulicBoundaryDatabaseFilePath = hydraulicBoundaryDatabaseFilePath;
-            HydraulicBoundaryLocationsConfigurationFilePath = hydraulicBoundaryLocationsConfigurationFilePath;
+            HlcdFilePath = hlcdFilePath;
             PreprocessorDirectory = preprocessorDirectory;
         }
 
         /// <summary>
-        /// Gets the hydraulic boundary database filepath.
-        /// </summary>
-        public string HydraulicBoundaryDatabaseFilePath { get; }
-
-        /// <summary>
         /// Gets the hydraulic locations configurations filepath.
         /// </summary>
-        public string HydraulicBoundaryLocationsConfigurationFilePath { get; }
+        public string HlcdFilePath { get; }
 
         /// <summary>
         /// Gets the preprocessor director.
Index: Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Data/Input/HydraRingCalculationSettingsTest.cs
===================================================================
diff -u -rd479aa88d66f9a5a61008baeb9d7e26a99fefa93 -r95aa30905727b2c07ff6c4c598e12d98bd4b76d3
--- Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Data/Input/HydraRingCalculationSettingsTest.cs	(.../HydraRingCalculationSettingsTest.cs)	(revision d479aa88d66f9a5a61008baeb9d7e26a99fefa93)
+++ Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Data/Input/HydraRingCalculationSettingsTest.cs	(.../HydraRingCalculationSettingsTest.cs)	(revision 95aa30905727b2c07ff6c4c598e12d98bd4b76d3)
@@ -1,5 +1,4 @@
 using System;
-using Core.Common.TestUtil;
 using NUnit.Framework;
 using Ringtoets.HydraRing.Calculation.Data.Input;
 
@@ -9,51 +8,22 @@
     public class HydraRingCalculationSettingsTest
     {
         [Test]
-        [TestCaseSource(typeof(InvalidPathHelper), nameof(InvalidPathHelper.InvalidPaths))]
-        public void Constructor_WithInvalidHydraulicBoundaryDatabaseFilePath_ThrowsArgumentException(
-            string invalidHydraulicBoundaryDatabaseFilePath)
+        public void Constructor_HlcdFilePathNull_ThrowsArgumentNullException()
         {
-            // Setup
-            string hlcdFilePath = TestHelper.GetScratchPadPath();
-            string preProcessorDirectory = TestHelper.GetScratchPadPath();
-
             // Call
-            TestDelegate call = () => new HydraRingCalculationSettings(invalidHydraulicBoundaryDatabaseFilePath,
-                                                                       hlcdFilePath,
-                                                                       preProcessorDirectory);
+            TestDelegate call = () => new HydraRingCalculationSettings(null,
+                                                                       string.Empty);
 
             // Assert
-            Assert.Throws<ArgumentException>(call);
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("hlcdFilePath", exception.ParamName);
         }
 
         [Test]
-        [TestCaseSource(typeof(InvalidPathHelper), nameof(InvalidPathHelper.InvalidPaths))]
-        public void Constructor_WithInvalidHydraulicBoundaryLocationsConfigurationsFilePath_ThrowsArgumentException(
-            string invalidHlcdFilePath)
+        public void Constructor_PreprocessorDirectoryNull_ThrowsArgumentNullException()
         {
-            // Setup
-            string hydraulicBoundaryLocationsDatabaseFilePath = TestHelper.GetScratchPadPath();
-            string preProcessorDirectory = TestHelper.GetScratchPadPath();
-
             // Call
-            TestDelegate call = () => new HydraRingCalculationSettings(hydraulicBoundaryLocationsDatabaseFilePath,
-                                                                       invalidHlcdFilePath,
-                                                                       preProcessorDirectory);
-
-            // Assert
-            Assert.Throws<ArgumentException>(call);
-        }
-
-        [Test]
-        public void Constructor_WithPreprocessorDirectoryNull_ThrowsArgumentNullException()
-        {
-            // Setup
-            string hydraulicBoundaryLocationsDatabaseFilePath = TestHelper.GetScratchPadPath();
-            string hlcdFilePath = TestHelper.GetScratchPadPath();
-
-            // Call
-            TestDelegate call = () => new HydraRingCalculationSettings(hydraulicBoundaryLocationsDatabaseFilePath,
-                                                                       hlcdFilePath,
+            TestDelegate call = () => new HydraRingCalculationSettings(string.Empty,
                                                                        null);
 
             // Assert
@@ -65,18 +35,15 @@
         public void Constructor_WithArguments_ExpectedValues()
         {
             // Setup
-            string hydraulicBoundaryDatabaseFilePath = TestHelper.GetScratchPadPath();
-            string hlcdFilePath = TestHelper.GetScratchPadPath();
-            string preProcessorDirectory = TestHelper.GetScratchPadPath();
+            const string hlcdFilePath = "hlcdFilePath";
+            const string preProcessorDirectory = "PreprocessorDirectory";
 
             // Call
-            var settings = new HydraRingCalculationSettings(hydraulicBoundaryDatabaseFilePath,
-                                                            hlcdFilePath,
+            var settings = new HydraRingCalculationSettings(hlcdFilePath,
                                                             preProcessorDirectory);
 
             // Assert
-            Assert.AreEqual(hydraulicBoundaryDatabaseFilePath, settings.HydraulicBoundaryDatabaseFilePath);
-            Assert.AreEqual(hydraulicBoundaryDatabaseFilePath, settings.HydraulicBoundaryLocationsConfigurationFilePath);
+            Assert.AreEqual(hlcdFilePath, settings.HlcdFilePath);
             Assert.AreEqual(preProcessorDirectory, settings.PreprocessorDirectory);
         }
     }