Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Parsers/HydraRingLogFileParser.cs
===================================================================
diff -u -r557c60f6aadb50bcb07503a0f5a1ea34ca6a3885 -r28eca7c7266b51b09790d1dcaa23808283457c46
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Parsers/HydraRingLogFileParser.cs	(.../HydraRingLogFileParser.cs)	(revision 557c60f6aadb50bcb07503a0f5a1ea34ca6a3885)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Parsers/HydraRingLogFileParser.cs	(.../HydraRingLogFileParser.cs)	(revision 28eca7c7266b51b09790d1dcaa23808283457c46)
@@ -21,7 +21,6 @@
 
 using System;
 using System.IO;
-using Core.Common.Utils;
 using log4net;
 using Ringtoets.HydraRing.Calculation.Properties;
 
@@ -36,18 +35,24 @@
 
         public void Parse(string workingDirectory, int sectionId)
         {
-            if (workingDirectory == null)
+            try
             {
+                Path.GetFullPath(workingDirectory);
+            }
+            catch (ArgumentNullException)
+            {
                 throw new ArgumentNullException("workingDirectory");
             }
-            FileUtils.ValidateFilePath(workingDirectory);
+            catch
+            {
+                throw new ArgumentException("workingDirectory");
+            }
 
             string logFileName = sectionId + ".log";
-            string logFilePath = Path.Combine(workingDirectory, logFileName);
 
             try
             {
-                LogFileContent = File.ReadAllText(logFilePath);
+                LogFileContent = File.ReadAllText(Path.Combine(workingDirectory, logFileName));
             }
             catch
             {