Index: Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Data/GrassCoverErosionOutwardsFailureMechanismExtensions.cs
===================================================================
diff -u -r9bb285c6eb5b2ed43bf4293caa51baa5175b7080 -r8a3d8f25e6cea125fda6783db41e88aca1864ba7
--- Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Data/GrassCoverErosionOutwardsFailureMechanismExtensions.cs	(.../GrassCoverErosionOutwardsFailureMechanismExtensions.cs)	(revision 9bb285c6eb5b2ed43bf4293caa51baa5175b7080)
+++ Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Data/GrassCoverErosionOutwardsFailureMechanismExtensions.cs	(.../GrassCoverErosionOutwardsFailureMechanismExtensions.cs)	(revision 8a3d8f25e6cea125fda6783db41e88aca1864ba7)
@@ -25,7 +25,6 @@
 using System.Linq;
 using Core.Common.Base.Data;
 using Ringtoets.Common.Data.AssessmentSection;
-using Ringtoets.Common.Data.Contribution;
 using Ringtoets.Common.Data.FailureMechanism;
 using Ringtoets.Common.Data.Hydraulics;
 
@@ -37,66 +36,6 @@
     public static class GrassCoverErosionOutwardsFailureMechanismExtensions
     {
         /// <summary>
-        /// Gets the normative assessment level for a <see cref="HydraulicBoundaryLocation"/>.
-        /// </summary>
-        /// <param name="assessmentSection">The assessment section to get the normative assessment level from.</param>
-        /// <param name="failureMechanism">The failure mechanism to get the normative assessment level from.</param>
-        /// <param name="hydraulicBoundaryLocation">The hydraulic boundary location to get the normative assessment level for.</param>
-        /// <returns>The normative assessment level or <see cref="RoundedDouble.NaN"/> when:
-        /// <list type="bullet">
-        /// <item><paramref name="hydraulicBoundaryLocation"/> is <c>null</c>;</item>
-        /// <item><paramref name="hydraulicBoundaryLocation"/> is not part of <paramref name="failureMechanism"/>;</item>
-        /// <item><paramref name="hydraulicBoundaryLocation"/> is not part of <paramref name="assessmentSection"/>;</item>
-        /// <item><paramref name="hydraulicBoundaryLocation"/> contains no corresponding calculation output.</item>
-        /// </list>
-        /// </returns>
-        /// <exception cref="ArgumentNullException">Thrown when <paramref name="failureMechanism"/>
-        /// or <paramref name="assessmentSection"/> is <c>null</c>.</exception>
-        /// <exception cref="InvalidEnumArgumentException">Thrown when <paramref name="assessmentSection"/>
-        /// contains an invalid value of <see cref="NormType"/>.</exception>
-        /// <exception cref="NotSupportedException">Thrown when <paramref name="assessmentSection"/>
-        /// contains a valid value of <see cref="NormType"/>, but unsupported.</exception>
-        public static RoundedDouble GetNormativeAssessmentLevel(this GrassCoverErosionOutwardsFailureMechanism failureMechanism,
-                                                                IAssessmentSection assessmentSection,
-                                                                HydraulicBoundaryLocation hydraulicBoundaryLocation)
-        {
-            if (failureMechanism == null)
-            {
-                throw new ArgumentNullException(nameof(failureMechanism));
-            }
-
-            if (assessmentSection == null)
-            {
-                throw new ArgumentNullException(nameof(assessmentSection));
-            }
-
-            NormType normType = assessmentSection.FailureMechanismContribution.NormativeNorm;
-
-            if (!Enum.IsDefined(typeof(NormType), normType))
-            {
-                throw new InvalidEnumArgumentException(nameof(normType),
-                                                       (int) normType,
-                                                       typeof(NormType));
-            }
-
-            IEnumerable<HydraulicBoundaryLocationCalculation> calculations;
-
-            switch (normType)
-            {
-                case NormType.Signaling:
-                    calculations = failureMechanism.WaterLevelCalculationsForMechanismSpecificSignalingNorm;
-                    break;
-                case NormType.LowerLimit:
-                    calculations = failureMechanism.WaterLevelCalculationsForMechanismSpecificLowerLimitNorm;
-                    break;
-                default:
-                    throw new NotSupportedException();
-            }
-
-            return GetAssessmentLevelFromCalculations(hydraulicBoundaryLocation, calculations);
-        }
-
-        /// <summary>
         /// Gets the assessment level for a <see cref="HydraulicBoundaryLocation"/> based on <see cref="FailureMechanismCategoryType"/>.
         /// </summary>
         /// <param name="assessmentSection">The assessment section to get the assessment level from.</param>
Index: Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Data.Test/GrassCoverErosionOutwardsFailureMechanismExtensionsTest.cs
===================================================================
diff -u -re3b58f9f74ce55c3334ca41ba325a7e5ff94052a -r8a3d8f25e6cea125fda6783db41e88aca1864ba7
--- Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Data.Test/GrassCoverErosionOutwardsFailureMechanismExtensionsTest.cs	(.../GrassCoverErosionOutwardsFailureMechanismExtensionsTest.cs)	(revision e3b58f9f74ce55c3334ca41ba325a7e5ff94052a)
+++ Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Data.Test/GrassCoverErosionOutwardsFailureMechanismExtensionsTest.cs	(.../GrassCoverErosionOutwardsFailureMechanismExtensionsTest.cs)	(revision 8a3d8f25e6cea125fda6783db41e88aca1864ba7)
@@ -20,14 +20,11 @@
 // All rights reserved.
 
 using System;
-using System.Collections;
 using System.ComponentModel;
-using System.Linq;
 using Core.Common.Base.Data;
 using Core.Common.TestUtil;
 using NUnit.Framework;
 using Ringtoets.Common.Data.AssessmentSection;
-using Ringtoets.Common.Data.Contribution;
 using Ringtoets.Common.Data.FailureMechanism;
 using Ringtoets.Common.Data.Hydraulics;
 using Ringtoets.Common.Data.TestUtil;
@@ -39,130 +36,6 @@
     public class GrassCoverErosionOutwardsFailureMechanismExtensionsTest
     {
         [Test]
-        public void GetNormativeAssessmentLevel_FailureMechanismNull_ThrowsArgumentNullException()
-        {
-            // Call
-            TestDelegate test = () => GrassCoverErosionOutwardsFailureMechanismExtensions.GetNormativeAssessmentLevel(null,
-                                                                                                                      new AssessmentSectionStub(),
-                                                                                                                      new TestHydraulicBoundaryLocation());
-
-            // Assert
-            string paramName = Assert.Throws<ArgumentNullException>(test).ParamName;
-            Assert.AreEqual("failureMechanism", paramName);
-        }
-
-        [Test]
-        public void GetNormativeAssessmentLevel_AssessmentSectionNull_ThrowsArgumentNullException()
-        {
-            // Setup
-            var failureMechanism = new GrassCoverErosionOutwardsFailureMechanism();
-
-            // Call
-            TestDelegate test = () => failureMechanism.GetNormativeAssessmentLevel(null,
-                                                                                   new TestHydraulicBoundaryLocation());
-
-            // Assert
-            string paramName = Assert.Throws<ArgumentNullException>(test).ParamName;
-            Assert.AreEqual("assessmentSection", paramName);
-        }
-
-        [Test]
-        public void GetNormativeAssessmentLevel_AssessmentSectionWithInvalidNormType_ThrowsInvalidEnumArgumentException()
-        {
-            // Setup
-            const int invalidValue = 9999;
-
-            var assessmentSection = new AssessmentSectionStub();
-            assessmentSection.FailureMechanismContribution.NormativeNorm = (NormType) invalidValue;
-
-            var failureMechanism = new GrassCoverErosionOutwardsFailureMechanism();
-
-            // Call
-            TestDelegate test = () => failureMechanism.GetNormativeAssessmentLevel(assessmentSection,
-                                                                                   new TestHydraulicBoundaryLocation());
-
-            // Assert
-            string expectedMessage = $"The value of argument 'normType' ({invalidValue}) is invalid for Enum type '{nameof(NormType)}'.";
-            string parameterName = TestHelper.AssertThrowsArgumentExceptionAndTestMessage<InvalidEnumArgumentException>(test, expectedMessage).ParamName;
-            Assert.AreEqual("normType", parameterName);
-        }
-
-        [Test]
-        public void GetNormativeAssessmentLevel_HydraulicBoundaryLocationNull_ReturnsNaN()
-        {
-            // Setup
-            var assessmentSection = new AssessmentSectionStub();
-            var failureMechanism = new GrassCoverErosionOutwardsFailureMechanism();
-
-            assessmentSection.FailureMechanismContribution.NormativeNorm = new Random(32).NextEnumValue<NormType>();
-
-            // Call
-            RoundedDouble normativeAssessmentLevel = failureMechanism.GetNormativeAssessmentLevel(assessmentSection,
-                                                                                                  null);
-
-            // Assert
-            Assert.IsNaN(normativeAssessmentLevel);
-        }
-
-        [Test]
-        public void GetNormativeAssessmentLevel_NoCorrespondingCalculation_ReturnsNaN()
-        {
-            var assessmentSection = new AssessmentSectionStub();
-            var failureMechanism = new GrassCoverErosionOutwardsFailureMechanism();
-
-            assessmentSection.FailureMechanismContribution.NormativeNorm = new Random(32).NextEnumValue<NormType>();
-
-            // Call
-            RoundedDouble normativeAssessmentLevel = failureMechanism.GetNormativeAssessmentLevel(assessmentSection,
-                                                                                                  new TestHydraulicBoundaryLocation());
-
-            // Assert
-            Assert.IsNaN(normativeAssessmentLevel);
-        }
-
-        [Test]
-        public void GetNormativeAssessmentLevel_NoCorrespondingAssessmentLevelOutput_ReturnsNaN()
-        {
-            var assessmentSection = new AssessmentSectionStub();
-            var hydraulicBoundaryLocation = new TestHydraulicBoundaryLocation();
-
-            assessmentSection.FailureMechanismContribution.NormativeNorm = new Random(32).NextEnumValue<NormType>();
-            assessmentSection.SetHydraulicBoundaryLocationCalculations(new[]
-            {
-                hydraulicBoundaryLocation
-            });
-
-            var failureMechanism = new GrassCoverErosionOutwardsFailureMechanism();
-
-            // Call
-            RoundedDouble normativeAssessmentLevel = failureMechanism.GetNormativeAssessmentLevel(assessmentSection,
-                                                                                                  hydraulicBoundaryLocation);
-
-            // Assert
-            Assert.IsNaN(normativeAssessmentLevel);
-        }
-
-        [Test]
-        [TestCaseSource(nameof(DifferentNormTypes))]
-        public void GetNormativeAssessmentLevel_HydraulicBoundaryLocationWithOutput_ReturnsCorrespondingAssessmentLevel(
-            IAssessmentSection assessmentSection,
-            GrassCoverErosionOutwardsFailureMechanism failureMechanism,
-            HydraulicBoundaryLocation hydraulicBoundaryLocation,
-            NormType normType,
-            RoundedDouble expectedNormativeAssessmentLevel)
-        {
-            // Setup
-            assessmentSection.FailureMechanismContribution.NormativeNorm = normType;
-
-            // Call
-            RoundedDouble normativeAssessmentLevel = failureMechanism.GetNormativeAssessmentLevel(assessmentSection,
-                                                                                                  hydraulicBoundaryLocation);
-
-            // Assert
-            Assert.AreEqual(expectedNormativeAssessmentLevel, normativeAssessmentLevel);
-        }
-
-        [Test]
         public void GetAssessmentLevel_FailureMechanismNull_ThrowsArgumentNullException()
         {
             // Call
@@ -284,35 +157,5 @@
             // Assert
             Assert.AreEqual(expectedAssessmentLevel, assessmentLevel);
         }
-
-        private static IEnumerable DifferentNormTypes()
-        {
-            var assessmentSection = new AssessmentSectionStub();
-            var hydraulicBoundaryLocation = new TestHydraulicBoundaryLocation();
-            var failureMechanism = new GrassCoverErosionOutwardsFailureMechanism();
-
-            GrassCoverErosionOutwardsHydraulicBoundaryLocationsTestHelper.SetHydraulicBoundaryLocations(
-                failureMechanism, assessmentSection,
-                new[]
-                {
-                    hydraulicBoundaryLocation
-                }, true);
-
-            yield return new TestCaseData(
-                assessmentSection,
-                failureMechanism,
-                hydraulicBoundaryLocation,
-                NormType.Signaling,
-                failureMechanism.WaterLevelCalculationsForMechanismSpecificSignalingNorm.ElementAt(0).Output.Result
-            ).SetName("SignalingNorm");
-
-            yield return new TestCaseData(
-                assessmentSection,
-                failureMechanism,
-                hydraulicBoundaryLocation,
-                NormType.LowerLimit,
-                failureMechanism.WaterLevelCalculationsForMechanismSpecificLowerLimitNorm.ElementAt(0).Output.Result
-            ).SetName("LowerLimitNorm");
-        }
     }
 }
\ No newline at end of file