Index: Riskeer/Common/src/Riskeer.Common.Forms/Factories/HydraulicBoundaryLocationMapDataFeaturesFactory.cs
===================================================================
diff -u -r056739493f30201655ba2a2832721dff1f9715d7 -r2b0b327fba16068d1469a66f2d01cdc21bed2b90
--- Riskeer/Common/src/Riskeer.Common.Forms/Factories/HydraulicBoundaryLocationMapDataFeaturesFactory.cs	(.../HydraulicBoundaryLocationMapDataFeaturesFactory.cs)	(revision 056739493f30201655ba2a2832721dff1f9715d7)
+++ Riskeer/Common/src/Riskeer.Common.Forms/Factories/HydraulicBoundaryLocationMapDataFeaturesFactory.cs	(.../HydraulicBoundaryLocationMapDataFeaturesFactory.cs)	(revision 2b0b327fba16068d1469a66f2d01cdc21bed2b90)
@@ -64,8 +64,26 @@
             return feature;
         }
 
-        private static void AddTargetProbabilityMetaData(MapFeature feature, IEnumerable<Tuple<double, RoundedDouble>> targetProbabilities, string displayName)
+        /// <summary>
+        /// Adds target probability related meta data to the given <paramref name="feature"/>.
+        /// </summary>
+        /// <param name="feature">The feature to add the meta data to.</param>
+        /// <param name="targetProbabilities">The collection of target probabilities to add.</param>
+        /// <param name="displayName">The display name of the meta data.</param>
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="feature"/> or
+        /// <paramref name="targetProbabilities"/> is <c>null</c>.</exception>
+        public static void AddTargetProbabilityMetaData(MapFeature feature, IEnumerable<Tuple<double, RoundedDouble>> targetProbabilities, string displayName)
         {
+            if (feature == null)
+            {
+                throw new ArgumentNullException(nameof(feature));
+            }
+
+            if (targetProbabilities == null)
+            {
+                throw new ArgumentNullException(nameof(targetProbabilities));
+            }
+
             var addedMetaDataItems = new List<string>();
 
             foreach (Tuple<double, RoundedDouble> calculationOutputForTargetProbability in targetProbabilities)
Index: Riskeer/Common/test/Riskeer.Common.Forms.Test/Factories/HydraulicBoundaryLocationMapDataFeaturesFactoryTest.cs
===================================================================
diff -u -r056739493f30201655ba2a2832721dff1f9715d7 -r2b0b327fba16068d1469a66f2d01cdc21bed2b90
--- Riskeer/Common/test/Riskeer.Common.Forms.Test/Factories/HydraulicBoundaryLocationMapDataFeaturesFactoryTest.cs	(.../HydraulicBoundaryLocationMapDataFeaturesFactoryTest.cs)	(revision 056739493f30201655ba2a2832721dff1f9715d7)
+++ Riskeer/Common/test/Riskeer.Common.Forms.Test/Factories/HydraulicBoundaryLocationMapDataFeaturesFactoryTest.cs	(.../HydraulicBoundaryLocationMapDataFeaturesFactoryTest.cs)	(revision 2b0b327fba16068d1469a66f2d01cdc21bed2b90)
@@ -26,6 +26,7 @@
 using Core.Common.Base.Geometry;
 using Core.Common.TestUtil;
 using Core.Components.Gis.Features;
+using Core.Components.Gis.Geometries;
 using NUnit.Framework;
 using Riskeer.Common.Forms.Factories;
 using Riskeer.Common.Forms.PresentationObjects;
@@ -71,10 +72,57 @@
             // Assert
             MapFeaturesMetaDataTestHelper.AssertMetaData(location.Id, feature, "ID");
             MapFeaturesMetaDataTestHelper.AssertMetaData(location.Name, feature, "Naam");
-            
+
             MapFeaturesMetaDataTestHelper.AssertMetaData(location.WaterLevelCalculationsForTargetProbabilities.First().Item2.ToString(), feature, "h - 1/10");
             MapFeaturesMetaDataTestHelper.AssertMetaData(location.WaterLevelCalculationsForTargetProbabilities.Last().Item2.ToString(), feature, "h - 1/10 (1)");
             MapFeaturesMetaDataTestHelper.AssertMetaData(location.WaveHeightCalculationsForTargetProbabilities.First().Item2.ToString(), feature, "Hs - 1/1.000");
         }
+
+        [Test]
+        public void AddTargetProbabilityMetaData_FeatureNull_ThrowsArgumentNullException()
+        {
+            // Call
+            void Call() => HydraulicBoundaryLocationMapDataFeaturesFactory.AddTargetProbabilityMetaData(
+                null, Enumerable.Empty<Tuple<double, RoundedDouble>>(), string.Empty);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(Call);
+            Assert.AreEqual("feature", exception.ParamName);
+        }
+
+        [Test]
+        public void AddTargetProbabilityMetaData_TargetProbabilitiesNull_ThrowsArgumentNullException()
+        {
+            // Call
+            void Call() => HydraulicBoundaryLocationMapDataFeaturesFactory.AddTargetProbabilityMetaData(new MapFeature(Enumerable.Empty<MapGeometry>()), null, string.Empty);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(Call);
+            Assert.AreEqual("targetProbabilities", exception.ParamName);
+        }
+
+        [Test]
+        public void AddTargetProbabilityMetaData_WithAllData_AddsMetaDataItems()
+        {
+            // Setup
+            var random = new Random(21);
+            var feature = new MapFeature(Enumerable.Empty<MapGeometry>());
+            var targetProbabilities = new[]
+            {
+                new Tuple<double, RoundedDouble>(0.01, random.NextRoundedDouble()),
+                new Tuple<double, RoundedDouble>(0.01, RoundedDouble.NaN),
+                new Tuple<double, RoundedDouble>(0.0001, random.NextRoundedDouble())
+            };
+            const string displayName = "Test - {0}";
+
+            // Call
+            HydraulicBoundaryLocationMapDataFeaturesFactory.AddTargetProbabilityMetaData(feature, targetProbabilities, displayName);
+
+            // Assert
+            Assert.AreEqual(3, feature.MetaData.Count);
+            MapFeaturesMetaDataTestHelper.AssertMetaData(targetProbabilities[0].Item2.ToString(), feature, string.Format(displayName, "1/100"));
+            MapFeaturesMetaDataTestHelper.AssertMetaData(targetProbabilities[1].Item2.ToString(), feature, string.Format(displayName, "1/100 (1)"));
+            MapFeaturesMetaDataTestHelper.AssertMetaData(targetProbabilities[2].Item2.ToString(), feature, string.Format(displayName, "1/10.000"));
+        }
     }
 }
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