Index: src/Plugins/Wti/Wti.Data/PipingSurfaceLine.cs
===================================================================
diff -u -rb08cd825acc24d8d7b0f5e802bf65efece7ee4be -rc42d0c47753135357002db6026ebbefc3603a62b
--- src/Plugins/Wti/Wti.Data/PipingSurfaceLine.cs	(.../PipingSurfaceLine.cs)	(revision b08cd825acc24d8d7b0f5e802bf65efece7ee4be)
+++ src/Plugins/Wti/Wti.Data/PipingSurfaceLine.cs	(.../PipingSurfaceLine.cs)	(revision c42d0c47753135357002db6026ebbefc3603a62b)
@@ -1,7 +1,56 @@
-namespace Wti.Data
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Wti.Data
 {
+    /// <summary>
+    /// Definition of a surfaceline for piping.
+    /// </summary>
     public class PipingSurfaceLine
     {
-        
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PipingSurfaceLine"/> class.
+        /// </summary>
+        public PipingSurfaceLine()
+        {
+            Name = string.Empty;
+            Points = Enumerable.Empty<Point3D>();
+        }
+
+        /// <summary>
+        /// Gets or sets the name of the surfaceline.
+        /// </summary>
+        public string Name { get; set; }
+
+        /// <summary>
+        /// Gets or sets the 3D points describing its geometry.
+        /// </summary>
+        public IEnumerable<Point3D> Points { get; private set; }
+
+        /// <summary>
+        /// Gets or sets the first 3D geometry point defining the surfaceline in world coordinates.
+        /// </summary>
+        public Point3D StartingWorldPoint { get; private set; }
+
+        /// <summary>
+        /// Gets or sets the last 3D geometry point defining the surfaceline in world coordinates.
+        /// </summary>
+        public Point3D EndingWorldPoint { get; private set; }
+
+        /// <summary>
+        /// Sets the geometry of the surfaceline.
+        /// </summary>
+        /// <param name="points">The collection of points defining the surfaceline geometry.</param>
+        public void SetGeometry(IEnumerable<Point3D> points)
+        {
+            var point3Ds = points.ToArray();
+            Points = point3Ds;
+
+            if (point3Ds.Length > 0)
+            {
+                StartingWorldPoint = point3Ds[0];
+                EndingWorldPoint = point3Ds[point3Ds.Length - 1];
+            }
+        }
     }
 }
\ No newline at end of file
Index: src/Plugins/Wti/Wti.Data/Point3D.cs
===================================================================
diff -u
--- src/Plugins/Wti/Wti.Data/Point3D.cs	(revision 0)
+++ src/Plugins/Wti/Wti.Data/Point3D.cs	(revision c42d0c47753135357002db6026ebbefc3603a62b)
@@ -0,0 +1,23 @@
+namespace Wti.Data
+{
+    /// <summary>
+    /// Defines a mathematical point in 3D Euclidean space.
+    /// </summary>
+    public class Point3D
+    {
+        /// <summary>
+        /// Gets or sets the x coordinate.
+        /// </summary>
+        public double X { get; set; }
+
+        /// <summary>
+        /// Gets or sets the y coordinate.
+        /// </summary>
+        public double Y { get; set; }
+
+        /// <summary>
+        /// Gets or sets the z coordinate.
+        /// </summary>
+        public double Z { get; set; }
+    }
+}
\ No newline at end of file
Index: src/Plugins/Wti/Wti.Data/Wti.Data.csproj
===================================================================
diff -u -r7311da16a34bc2588440d0166f3a09402e4fd16f -rc42d0c47753135357002db6026ebbefc3603a62b
--- src/Plugins/Wti/Wti.Data/Wti.Data.csproj	(.../Wti.Data.csproj)	(revision 7311da16a34bc2588440d0166f3a09402e4fd16f)
+++ src/Plugins/Wti/Wti.Data/Wti.Data.csproj	(.../Wti.Data.csproj)	(revision c42d0c47753135357002db6026ebbefc3603a62b)
@@ -45,6 +45,7 @@
     <Compile Include="PipingFailureMechanism.cs" />
     <Compile Include="PipingOutput.cs" />
     <Compile Include="PipingSurfaceLine.cs" />
+    <Compile Include="Point3D.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="WtiProject.cs" />
   </ItemGroup>
Index: src/Plugins/Wti/Wti.IO/PipingSurfaceLinesCsvReader.cs
===================================================================
diff -u -rbb61ed227cf79e994b84019096e4297b2fbd4527 -rc42d0c47753135357002db6026ebbefc3603a62b
--- src/Plugins/Wti/Wti.IO/PipingSurfaceLinesCsvReader.cs	(.../PipingSurfaceLinesCsvReader.cs)	(revision bb61ed227cf79e994b84019096e4297b2fbd4527)
+++ src/Plugins/Wti/Wti.IO/PipingSurfaceLinesCsvReader.cs	(.../PipingSurfaceLinesCsvReader.cs)	(revision c42d0c47753135357002db6026ebbefc3603a62b)
@@ -1,5 +1,11 @@
 using System;
+using System.Globalization;
+using System.IO;
+using System.Linq;
 
+using Wti.Data;
+using Wti.IO.Properties;
+
 namespace Wti.IO
 {
     /// <summary>
@@ -10,8 +16,108 @@
     /// Where {ID} has to be a particular accepted text, and n triplets of doubles form the
     /// 3D coordinates defining the geometric shape of the surfaceline..
     /// </summary>
-    public class PipingSurfaceLinesCsvReader
+    public class PipingSurfaceLinesCsvReader : IDisposable
     {
         private readonly string[] acceptableIdNames = { "Profielnaam, LocationID" };
+        private readonly string filePath;
+        private StreamReader fileReader;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PipingSurfaceLinesCsvReader"/> class
+        /// and opens a given file path.
+        /// </summary>
+        /// <param name="path">The path to the file to be read.</param>
+        public PipingSurfaceLinesCsvReader(string path)
+        {
+            if (string.IsNullOrWhiteSpace(path))
+            {
+                throw new ArgumentException(Resources.Error_PathMustBeSpecified);
+            }
+            filePath = path;
+        }
+
+        public void Dispose()
+        {
+            if (fileReader != null)
+            {
+                fileReader.Dispose();
+                fileReader = null;
+            }
+        }
+
+        /// <summary>
+        /// Reads the file to determine the number of available <see cref="PipingSurfaceLine"/>
+        /// data rows.
+        /// </summary>
+        /// <returns>A value greater than or equal to 0.</returns>
+        /// <exception cref="FileNotFoundException">The file cannot be found.</exception>
+        /// <exception cref="DirectoryNotFoundException">The specified path is invalid, such as being on an unmapped drive.</exception>
+        /// <exception cref="IOException">Filepath includes an incorrect or invalid syntax for file name, directory name, or volume label.</exception>
+        /// <exception cref="OutOfMemoryException">There is insufficient memory to allocate a buffer for the returned string.</exception>
+        public int GetSurfaceLinesCount()
+        {
+            var count = 0;
+            using (var reader = new StreamReader(filePath))
+            {
+                // Skip header:
+                reader.ReadLine();
+
+                // Count SurfaceLines:
+                string line;
+                while ((line = reader.ReadLine()) != null)
+                {
+                    if (!String.IsNullOrWhiteSpace(line))
+                    {
+                        count++;
+                    }
+                }
+            }
+            return count;
+        }
+
+        /// <summary>
+        /// Reads and consumes the next data row, parsing the data to create an instance 
+        /// of <see cref="PipingSurfaceLine"/>.
+        /// </summary>
+        /// <returns>Return the parse surfaceline, or null when at the end of the file.</returns>
+        /// <exception cref="FileNotFoundException">The file cannot be found.</exception>
+        /// <exception cref="DirectoryNotFoundException">The specified path is invalid, such as being on an unmapped drive.</exception>
+        /// <exception cref="IOException">Filepath includes an incorrect or invalid syntax for file name, directory name, or volume label.</exception>
+        /// <exception cref="OutOfMemoryException">There is insufficient memory to allocate a buffer for the returned string.</exception>
+        public PipingSurfaceLine ReadLine()
+        {
+            if (fileReader == null)
+            {
+                fileReader = new StreamReader(filePath);
+                // Skip Header:
+                fileReader.ReadLine();
+            }
+            var readText = fileReader.ReadLine();
+            if (readText != null)
+            {
+                var tokenizedString = readText.Split(';');
+                var worldCoordinateValues = tokenizedString.Skip(1)
+                                                           .Select(ts => Double.Parse(ts, CultureInfo.InvariantCulture))
+                                                           .ToArray();
+                int coordinateCount = worldCoordinateValues.Length/3;
+                var points = new Point3D[coordinateCount];
+                for (int i = 0; i < coordinateCount; i++)
+                {
+                    points[i] = new Point3D
+                    {
+                        X = worldCoordinateValues[i*3],
+                        Y = worldCoordinateValues[i*3+1],
+                        Z = worldCoordinateValues[i*3+2]
+                    };
+                }
+
+                var surfaceLine = new PipingSurfaceLine();
+                surfaceLine.Name = tokenizedString.First();
+                surfaceLine.SetGeometry(points);
+                return surfaceLine;
+            }
+
+            return null;
+        }
     }
 }
\ No newline at end of file
Index: src/Plugins/Wti/Wti.IO/Properties/Resources.Designer.cs
===================================================================
diff -u
--- src/Plugins/Wti/Wti.IO/Properties/Resources.Designer.cs	(revision 0)
+++ src/Plugins/Wti/Wti.IO/Properties/Resources.Designer.cs	(revision c42d0c47753135357002db6026ebbefc3603a62b)
@@ -0,0 +1,72 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.18444
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace Wti.IO.Properties {
+    using System;
+    
+    
+    /// <summary>
+    ///   A strongly-typed resource class, for looking up localized strings, etc.
+    /// </summary>
+    // This class was auto-generated by the StronglyTypedResourceBuilder
+    // class via a tool like ResGen or Visual Studio.
+    // To add or remove a member, edit your .ResX file then rerun ResGen
+    // with the /str option, or rebuild your VS project.
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources {
+        
+        private static global::System.Resources.ResourceManager resourceMan;
+        
+        private static global::System.Globalization.CultureInfo resourceCulture;
+        
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources() {
+        }
+        
+        /// <summary>
+        ///   Returns the cached ResourceManager instance used by this class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager {
+            get {
+                if (object.ReferenceEquals(resourceMan, null)) {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("Wti.IO.Properties.Resources", typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+        
+        /// <summary>
+        ///   Overrides the current thread's CurrentUICulture property for all
+        ///   resource lookups using this strongly typed resource class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture {
+            get {
+                return resourceCulture;
+            }
+            set {
+                resourceCulture = value;
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Bestandspad mag niet leeg of ongedefinieerd zijn..
+        /// </summary>
+        internal static string Error_PathMustBeSpecified {
+            get {
+                return ResourceManager.GetString("Error_PathMustBeSpecified", resourceCulture);
+            }
+        }
+    }
+}
Index: src/Plugins/Wti/Wti.IO/Properties/Resources.resx
===================================================================
diff -u
--- src/Plugins/Wti/Wti.IO/Properties/Resources.resx	(revision 0)
+++ src/Plugins/Wti/Wti.IO/Properties/Resources.resx	(revision c42d0c47753135357002db6026ebbefc3603a62b)
@@ -0,0 +1,123 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <data name="Error_PathMustBeSpecified" xml:space="preserve">
+    <value>Bestandspad mag niet leeg of ongedefinieerd zijn.</value>
+  </data>
+</root>
\ No newline at end of file
Index: src/Plugins/Wti/Wti.IO/Wti.IO.csproj
===================================================================
diff -u -r7311da16a34bc2588440d0166f3a09402e4fd16f -rc42d0c47753135357002db6026ebbefc3603a62b
--- src/Plugins/Wti/Wti.IO/Wti.IO.csproj	(.../Wti.IO.csproj)	(revision 7311da16a34bc2588440d0166f3a09402e4fd16f)
+++ src/Plugins/Wti/Wti.IO/Wti.IO.csproj	(.../Wti.IO.csproj)	(revision c42d0c47753135357002db6026ebbefc3603a62b)
@@ -44,6 +44,11 @@
     </Compile>
     <Compile Include="PipingSurfaceLinesCsvReader.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Properties\Resources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DesignTime>True</DesignTime>
+      <DependentUpon>Resources.resx</DependentUpon>
+    </Compile>
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\..\Common\DelftTools.Shell.Core\DelftTools.Shell.Core.csproj">
@@ -60,6 +65,12 @@
       <Name>Wti.Data</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+    </EmbeddedResource>
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Import Project="..\..\..\..\build\DeltaShell.targets" />
   <PropertyGroup>
Index: test-data/Plugins/Wti/IO/PipingSurfaceLinesCsvReader/TwoValidSurfaceLines.csv
===================================================================
diff -u
--- test-data/Plugins/Wti/IO/PipingSurfaceLinesCsvReader/TwoValidSurfaceLines.csv	(revision 0)
+++ test-data/Plugins/Wti/IO/PipingSurfaceLinesCsvReader/TwoValidSurfaceLines.csv	(revision c42d0c47753135357002db6026ebbefc3603a62b)
@@ -0,0 +1,3 @@
+Profielnaam;X1;Y1;Z1...;Xn;Yn;Zn
+Rotterdam1;94263.0026213;427776.654093;-1.02;94275.9126686;427811.080886;-1.04;94284.0663827;427831.918156;1.25;94294.9380015;427858.191234;1.45;94305.3566362;427889.900123;1.65;94315.0957947;427913.908281;1.66;94325.0614453;427941.766804;1.55;94331.1767309;427960.112661;1.44
+ArtificalLocal;2.3;0;1.0;5.7;0;2.0;4.4;0;1.1
\ No newline at end of file
Index: test-data/Plugins/Wti/IO/PipingSurfaceLinesCsvReader/ValidFileWithoutSurfaceLines.csv
===================================================================
diff -u
--- test-data/Plugins/Wti/IO/PipingSurfaceLinesCsvReader/ValidFileWithoutSurfaceLines.csv	(revision 0)
+++ test-data/Plugins/Wti/IO/PipingSurfaceLinesCsvReader/ValidFileWithoutSurfaceLines.csv	(revision c42d0c47753135357002db6026ebbefc3603a62b)
@@ -0,0 +1,2 @@
+Profielnaam;X1;Y1;Z1...;Xn;Yn;Zn
+
Index: test/Common/DelftTools.TestUtils/TestDataPath.cs
===================================================================
diff -u -rdbf346f0cc265bf639c1b94ac0eedc1c7bd9d0e4 -rc42d0c47753135357002db6026ebbefc3603a62b
--- test/Common/DelftTools.TestUtils/TestDataPath.cs	(.../TestDataPath.cs)	(revision dbf346f0cc265bf639c1b94ac0eedc1c7bd9d0e4)
+++ test/Common/DelftTools.TestUtils/TestDataPath.cs	(.../TestDataPath.cs)	(revision c42d0c47753135357002db6026ebbefc3603a62b)
@@ -37,5 +37,13 @@
             public static readonly TestDataPath DeltaShellDeltaShellPluginsSharpMapGisTestsRasterData =
                 @"DeltaShell/DeltaShell.Plugins.SharpMapGis.Tests/RasterData/";
         }
+
+        public static class Plugins
+        {
+            public static class Wti
+            {
+                public static readonly TestDataPath WtiIOPath = @"Plugins/Wti/IO/";
+            }
+        }
     }
 }
\ No newline at end of file
Index: test/Plugins/Wti/Wti.Data.Test/PipingSurfaceLineTest.cs
===================================================================
diff -u
--- test/Plugins/Wti/Wti.Data.Test/PipingSurfaceLineTest.cs	(revision 0)
+++ test/Plugins/Wti/Wti.Data.Test/PipingSurfaceLineTest.cs	(revision c42d0c47753135357002db6026ebbefc3603a62b)
@@ -0,0 +1,59 @@
+using System;
+using System.Linq;
+
+using NUnit.Framework;
+
+namespace Wti.Data.Test
+{
+    [TestFixture]
+    public class PipingSurfaceLineTest
+    {
+        [Test]
+        public void DefaultConstructor_ExpectedValues()
+        {
+            // Call
+            var surfaceLine = new PipingSurfaceLine();
+
+            // Assert
+            Assert.AreEqual(String.Empty, surfaceLine.Name);
+            CollectionAssert.IsEmpty(surfaceLine.Points);
+            Assert.IsNull(surfaceLine.StartingWorldPoint);
+            Assert.IsNull(surfaceLine.EndingWorldPoint);
+        }
+
+        [Test]
+        public void SetGeometry_EmptyCollection_PointsSetEmptyAndNullStartAndEndWorldPoints()
+        {
+            // Setup
+            var surfaceLine = new PipingSurfaceLine();
+
+            var sourceData = Enumerable.Empty<Point3D>();
+
+            // Call
+            surfaceLine.SetGeometry(sourceData);
+
+            // Assert
+            CollectionAssert.IsEmpty(surfaceLine.Points);
+            Assert.IsNull(surfaceLine.StartingWorldPoint);
+            Assert.IsNull(surfaceLine.EndingWorldPoint);
+        }
+
+        [Test]
+        public void SetGeometry_CollectionOfOnePoint_InitializeStartAndEndWorldPointsToSameInstanceAndInitializePoints()
+        {
+            // Setup
+            var surfaceLine = new PipingSurfaceLine();
+
+            var sourceData = new[]{new Point3D{X=1.1,Y=2.2,Z=3.3}};
+
+            // Call
+            surfaceLine.SetGeometry(sourceData);
+
+            // Assert
+            Assert.AreNotSame(sourceData, surfaceLine.Points);
+            CollectionAssert.AreEqual(sourceData, surfaceLine.Points);
+            Assert.AreSame(sourceData[0], surfaceLine.StartingWorldPoint);
+            Assert.AreSame(sourceData[0], surfaceLine.EndingWorldPoint);
+        }
+    }
+}
\ No newline at end of file
Index: test/Plugins/Wti/Wti.Data.Test/Point3DTest.cs
===================================================================
diff -u
--- test/Plugins/Wti/Wti.Data.Test/Point3DTest.cs	(revision 0)
+++ test/Plugins/Wti/Wti.Data.Test/Point3DTest.cs	(revision c42d0c47753135357002db6026ebbefc3603a62b)
@@ -0,0 +1,37 @@
+using NUnit.Framework;
+
+namespace Wti.Data.Test
+{
+    [TestFixture]
+    public class Point3DTest
+    {
+        [Test]
+        public void DefaultConstructor_ExpectedValues()
+        {
+            // Call
+            var point = new Point3D();
+
+            // Assert
+            Assert.AreEqual(0, point.X);
+            Assert.AreEqual(0, point.Y);
+            Assert.AreEqual(0, point.Z);
+        }
+
+        [Test]
+        public void AutomaticProperties_SetAndGetValuesAgain_ReturnedValueShouldBeSameAsSetValue()
+        {
+            // Setup
+            var point = new Point3D();
+
+            // Call
+            point.X = 1.1;
+            point.Y = 2.2;
+            point.Z = -1.1;
+
+            // Assert
+            Assert.AreEqual(1.1, point.X);
+            Assert.AreEqual(2.2, point.Y);
+            Assert.AreEqual(-1.1, point.Z);
+        }
+    }
+}
\ No newline at end of file
Index: test/Plugins/Wti/Wti.Data.Test/Wti.Data.Test.csproj
===================================================================
diff -u -rb08cd825acc24d8d7b0f5e802bf65efece7ee4be -rc42d0c47753135357002db6026ebbefc3603a62b
--- test/Plugins/Wti/Wti.Data.Test/Wti.Data.Test.csproj	(.../Wti.Data.Test.csproj)	(revision b08cd825acc24d8d7b0f5e802bf65efece7ee4be)
+++ test/Plugins/Wti/Wti.Data.Test/Wti.Data.Test.csproj	(.../Wti.Data.Test.csproj)	(revision c42d0c47753135357002db6026ebbefc3603a62b)
@@ -49,6 +49,8 @@
     <Compile Include="PipingDataTest.cs" />
     <Compile Include="PipingFailureMechanismTest.cs" />
     <Compile Include="PipingOutputTest.cs" />
+    <Compile Include="PipingSurfaceLineTest.cs" />
+    <Compile Include="Point3DTest.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="WtiProjectTest.cs" />
   </ItemGroup>
Index: test/Plugins/Wti/Wti.IO.Test/PipingSurfaceLinesCsvReaderTest.cs
===================================================================
diff -u -rbb61ed227cf79e994b84019096e4297b2fbd4527 -rc42d0c47753135357002db6026ebbefc3603a62b
--- test/Plugins/Wti/Wti.IO.Test/PipingSurfaceLinesCsvReaderTest.cs	(.../PipingSurfaceLinesCsvReaderTest.cs)	(revision bb61ed227cf79e994b84019096e4297b2fbd4527)
+++ test/Plugins/Wti/Wti.IO.Test/PipingSurfaceLinesCsvReaderTest.cs	(.../PipingSurfaceLinesCsvReaderTest.cs)	(revision c42d0c47753135357002db6026ebbefc3603a62b)
@@ -1,10 +1,160 @@
-using NUnit.Framework;
+using System;
+using System.IO;
+using System.Linq;
 
+using DelftTools.TestUtils;
+
+using NUnit.Framework;
+
 namespace Wti.IO.Test
 {
     [TestFixture]
     public class PipingSurfaceLinesCsvReaderTest
     {
-        
+        private readonly string testDataPath = TestHelper.GetTestDataPath(TestDataPath.Plugins.Wti.WtiIOPath, "PipingSurfaceLinesCsvReader");
+
+        [Test]
+        [TestCase("")]
+        [TestCase(null)]
+        [TestCase("     ")]
+        public void ParameterdConstructor_InvalidStringArgument_ArgumentException(string path)
+        {
+            // Call
+            TestDelegate call = () => new PipingSurfaceLinesCsvReader(path);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentException>(call);
+            Assert.AreEqual("Bestandspad mag niet leeg of ongedefinieerd zijn.", exception.Message);
+        }
+
+        [Test]
+        public void ParameterdConstructor_AnyPath_ExpectedValues()
+        {
+            // Setup
+            const string fakeFilePath = @"I\Dont\Really\Exist";
+
+            // Call
+            using (var reader = new PipingSurfaceLinesCsvReader(fakeFilePath))
+            {
+                // Assert
+                Assert.IsInstanceOf<IDisposable>(reader);
+            }
+        }
+
+        [Test]
+        public void GetLineCount_OpenedValidFileWithHeaderAndTwoSurfaceLines_ReturnNumberOfSurfaceLines()
+        {
+            // Setup
+            string path = Path.Combine(testDataPath, "TwoValidSurfaceLines.csv");
+
+            using (var reader = new PipingSurfaceLinesCsvReader(path))
+            {
+                // Call
+                int linesCount = reader.GetSurfaceLinesCount();
+
+                // Assert
+                Assert.AreEqual(2, linesCount);
+            }
+        }
+
+        [Test]
+        public void GetLineCount_OpenedValidFileWithHeaderAndNoSurfaceLines_ReturnZero()
+        {
+            // Setup
+            string path = Path.Combine(testDataPath, "ValidFileWithoutSurfaceLines.csv");
+
+            using (var reader = new PipingSurfaceLinesCsvReader(path))
+            {
+                // Call
+                int linesCount = reader.GetSurfaceLinesCount();
+
+                // Assert
+                Assert.AreEqual(0, linesCount);
+            }
+        }
+
+        [Test]
+        [SetCulture("nl-NL")]
+        public void ReadLine_OpenedValidFileWithHeaderAndTwoSurfaceLinesWithCultureNL_ReturnCreatedSurfaceLine()
+        {
+            DoReadLine_OpenedValidFileWithHeaderAndTwoSurfaceLines_ReturnCreatedSurfaceLine();
+        }
+
+        [Test]
+        [SetCulture("en-US")]
+        public void ReadLine_OpenedValidFileWithHeaderAndTwoSurfaceLinesWithCultureEN_ReturnCreatedSurfaceLine()
+        {
+            DoReadLine_OpenedValidFileWithHeaderAndTwoSurfaceLines_ReturnCreatedSurfaceLine();
+        }
+
+        private void DoReadLine_OpenedValidFileWithHeaderAndTwoSurfaceLines_ReturnCreatedSurfaceLine()
+        {
+            // Setup
+            string path = Path.Combine(testDataPath, "TwoValidSurfaceLines.csv");
+
+            using (var reader = new PipingSurfaceLinesCsvReader(path))
+            {
+                // Call
+                var surfaceLine1 = reader.ReadLine();
+                var surfaceLine2 = reader.ReadLine();
+
+                // Assert
+
+                #region 1st surfaceline
+
+                Assert.AreEqual("Rotterdam1", surfaceLine1.Name);
+                Assert.AreEqual(8, surfaceLine1.Points.Count());
+                Assert.AreEqual(94263.0026213, surfaceLine1.StartingWorldPoint.X);
+                Assert.AreEqual(427776.654093, surfaceLine1.StartingWorldPoint.Y);
+                Assert.AreEqual(-1.02, surfaceLine1.StartingWorldPoint.Z);
+                Assert.AreEqual(94331.1767309, surfaceLine1.EndingWorldPoint.X);
+                Assert.AreEqual(427960.112661, surfaceLine1.EndingWorldPoint.Y);
+                Assert.AreEqual(1.44, surfaceLine1.EndingWorldPoint.Z);
+                Assert.AreEqual(surfaceLine1.StartingWorldPoint, surfaceLine1.Points.First());
+                Assert.AreEqual(surfaceLine1.EndingWorldPoint, surfaceLine1.Points.Last());
+
+                #endregion
+
+                #region 2nd surfaceline
+
+                Assert.AreEqual("ArtificalLocal", surfaceLine2.Name);
+                Assert.AreEqual(3, surfaceLine2.Points.Count());
+                Assert.AreEqual(2.3, surfaceLine2.StartingWorldPoint.X);
+                Assert.AreEqual(0, surfaceLine2.StartingWorldPoint.Y);
+                Assert.AreEqual(1, surfaceLine2.StartingWorldPoint.Z);
+                Assert.AreEqual(4.4, surfaceLine2.EndingWorldPoint.X);
+                Assert.AreEqual(0, surfaceLine2.EndingWorldPoint.Y);
+                Assert.AreEqual(1.1, surfaceLine2.EndingWorldPoint.Z);
+                Assert.AreEqual(surfaceLine2.StartingWorldPoint, surfaceLine2.Points.First());
+                Assert.AreEqual(surfaceLine2.EndingWorldPoint, surfaceLine2.Points.Last());
+
+                #endregion
+            }
+        }
+
+        [Test]
+        public void ReadLine_OpenedValidFileWithoutHeaderAndTwoSurfaceLinesWhileAtTheEndOfFile_ReturnNull()
+        {
+            // Setup
+            string path = Path.Combine(testDataPath, "TwoValidSurfaceLines.csv");
+
+            using (var reader = new PipingSurfaceLinesCsvReader(path))
+            {
+                int surfaceLinesCount = reader.GetSurfaceLinesCount();
+                for (int i = 0; i < surfaceLinesCount; i++)
+                {
+                    var pipingSurfaceLine = reader.ReadLine();
+                    Assert.IsNotInstanceOf<IDisposable>(pipingSurfaceLine,
+                        "Fail Fast: Disposal logic required to be implemented in test.");
+                    Assert.IsNotNull(pipingSurfaceLine);
+                }
+
+                // Call
+                var result = reader.ReadLine();
+
+                // Assert
+                Assert.IsNull(result);
+            }
+        }
     }
 }
\ No newline at end of file
Index: test/Plugins/Wti/Wti.IO.Test/Wti.IO.Test.csproj
===================================================================
diff -u -rbb61ed227cf79e994b84019096e4297b2fbd4527 -rc42d0c47753135357002db6026ebbefc3603a62b
--- test/Plugins/Wti/Wti.IO.Test/Wti.IO.Test.csproj	(.../Wti.IO.Test.csproj)	(revision bb61ed227cf79e994b84019096e4297b2fbd4527)
+++ test/Plugins/Wti/Wti.IO.Test/Wti.IO.Test.csproj	(.../Wti.IO.Test.csproj)	(revision c42d0c47753135357002db6026ebbefc3603a62b)
@@ -50,6 +50,10 @@
       <Project>{35b87b7a-7f50-4139-b563-589ee522b1ed}</Project>
       <Name>Wti.IO</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\..\Common\DelftTools.TestUtils\DelftTools.TestUtils.csproj">
+      <Project>{EFA25023-CF6A-4FF7-8C42-B24D7F9509E1}</Project>
+      <Name>DelftTools.TestUtils</Name>
+    </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it.