diff --git a/ProcessLib/RichardsComponentTransport/CreatePorousMediaProperties.cpp b/ProcessLib/RichardsComponentTransport/CreatePorousMediaProperties.cpp
deleted file mode 100644
index 4a8b0155acf3c6c0338e40ce5099338c870bdece..0000000000000000000000000000000000000000
--- a/ProcessLib/RichardsComponentTransport/CreatePorousMediaProperties.cpp
+++ /dev/null
@@ -1,64 +0,0 @@
-/**
- * \file
- *
- * \copyright
- * Copyright (c) 2012-2021, OpenGeoSys Community (http://www.opengeosys.org)
- *            Distributed under a Modified BSD License.
- *              See accompanying file LICENSE.txt or
- *              http://www.opengeosys.org/project/license
- */
-
-#include "CreatePorousMediaProperties.h"
-
-#include "BaseLib/Algorithm.h"
-#include "MaterialLib/PorousMedium/UnsaturatedProperty/CapillaryPressure/CreateCapillaryPressureModel.h"
-#include "MeshLib/Mesh.h"
-
-namespace ProcessLib
-{
-namespace RichardsComponentTransport
-{
-PorousMediaProperties createPorousMediaProperties(
-    MeshLib::Mesh& mesh, BaseLib::ConfigTree const& porous_medium_configs)
-{
-    DBUG("Create PorousMediaProperties.");
-
-    std::vector<
-        std::unique_ptr<MaterialLib::PorousMedium::CapillaryPressureSaturation>>
-        capillary_pressure_models;
-
-    std::vector<int> mat_ids;
-    for (
-        auto const& porous_medium_config :
-        //! \ogs_file_param{prj__processes__process__RichardsComponentTransport__porous_medium__porous_medium}
-        porous_medium_configs.getConfigSubtreeList("porous_medium"))
-    {
-        //! \ogs_file_attr{prj__processes__process__RichardsComponentTransport__porous_medium__porous_medium__id}
-        auto const id = porous_medium_config.getConfigAttribute<int>("id");
-        mat_ids.push_back(id);
-
-        auto const& capillary_pressure_config =
-            //! \ogs_file_param{prj__processes__process__RichardsComponentTransport__porous_medium__porous_medium__capillary_pressure}
-            porous_medium_config.getConfigSubtree("capillary_pressure");
-        auto capillary_pressure =
-            MaterialLib::PorousMedium::createCapillaryPressureModel(
-                capillary_pressure_config);
-        capillary_pressure_models.emplace_back(std::move(capillary_pressure));
-    }
-
-    std::vector<int> material_ids(mesh.getNumberOfElements());
-    if (mesh.getProperties().existsPropertyVector<int>("MaterialIDs"))
-    {
-        auto const& mesh_material_ids =
-            mesh.getProperties().getPropertyVector<int>("MaterialIDs");
-        material_ids.reserve(mesh_material_ids->size());
-        std::copy(mesh_material_ids->cbegin(), mesh_material_ids->cend(),
-                  material_ids.begin());
-    }
-
-    return PorousMediaProperties{std::move(capillary_pressure_models),
-                                 std::move(material_ids)};
-}
-
-}  // namespace RichardsComponentTransport
-}  // namespace ProcessLib
diff --git a/ProcessLib/RichardsComponentTransport/CreatePorousMediaProperties.h b/ProcessLib/RichardsComponentTransport/CreatePorousMediaProperties.h
deleted file mode 100644
index f56fd14a0d70ca3d7b640752d8433351ff973a71..0000000000000000000000000000000000000000
--- a/ProcessLib/RichardsComponentTransport/CreatePorousMediaProperties.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/**
- * \file
- *
- * \copyright
- * Copyright (c) 2012-2021, OpenGeoSys Community (http://www.opengeosys.org)
- *            Distributed under a Modified BSD License.
- *              See accompanying file LICENSE.txt or
- *              http://www.opengeosys.org/project/license
- */
-
-#pragma once
-
-#include "BaseLib/ConfigTree.h"
-#include "PorousMediaProperties.h"
-
-namespace MeshLib
-{
-class Mesh;
-}
-
-namespace ProcessLib
-{
-namespace RichardsComponentTransport
-{
-PorousMediaProperties createPorousMediaProperties(
-    MeshLib::Mesh& mesh, BaseLib::ConfigTree const& porous_medium_configs);
-}
-}
diff --git a/ProcessLib/RichardsComponentTransport/PorousMediaProperties.cpp b/ProcessLib/RichardsComponentTransport/PorousMediaProperties.cpp
deleted file mode 100644
index bc9d029a7ad54f2ba8717361da811832e4955830..0000000000000000000000000000000000000000
--- a/ProcessLib/RichardsComponentTransport/PorousMediaProperties.cpp
+++ /dev/null
@@ -1,33 +0,0 @@
-/**
- * \file
- *
- * \copyright
- * Copyright (c) 2012-2021, OpenGeoSys Community (http://www.opengeosys.org)
- *            Distributed under a Modified BSD License.
- *              See accompanying file LICENSE.txt or
- *              http://www.opengeosys.org/project/license
- */
-
-#include "PorousMediaProperties.h"
-
-#include "ParameterLib/SpatialPosition.h"
-
-namespace ProcessLib
-{
-namespace RichardsComponentTransport
-{
-int PorousMediaProperties::getMaterialID(
-    ParameterLib::SpatialPosition const& pos) const
-{
-    int const element_id = pos.getElementID().value();
-    return _material_ids[element_id];
-}
-
-MaterialLib::PorousMedium::CapillaryPressureSaturation const&
-PorousMediaProperties::getCapillaryPressureSaturationModel(
-    double /*t*/, ParameterLib::SpatialPosition const& pos) const
-{
-    return *_capillary_pressure_saturation_models[getMaterialID(pos)];
-}
-}  // namespace RichardsComponentTransport
-}  // namespace ProcessLib
diff --git a/ProcessLib/RichardsComponentTransport/PorousMediaProperties.h b/ProcessLib/RichardsComponentTransport/PorousMediaProperties.h
deleted file mode 100644
index 32cac790d0a631e8e7b0b6f86673ccab7908fa7a..0000000000000000000000000000000000000000
--- a/ProcessLib/RichardsComponentTransport/PorousMediaProperties.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/**
- * \file
- *
- * \copyright
- * Copyright (c) 2012-2021, OpenGeoSys Community (http://www.opengeosys.org)
- *            Distributed under a Modified BSD License.
- *              See accompanying file LICENSE.txt or
- *              http://www.opengeosys.org/project/license
- */
-
-#pragma once
-
-#include <memory>
-#include <vector>
-
-#include "MaterialLib/PorousMedium/UnsaturatedProperty/CapillaryPressure/CapillaryPressureSaturation.h"
-
-namespace ParameterLib
-{
-class SpatialPosition;
-}
-
-namespace ProcessLib
-{
-namespace RichardsComponentTransport
-{
-
-class PorousMediaProperties
-{
-public:
-    PorousMediaProperties(
-        std::vector<std::unique_ptr<
-            MaterialLib::PorousMedium::CapillaryPressureSaturation>>&&
-            capillary_pressure_saturation_models,
-        std::vector<int>&& material_ids)
-        : _capillary_pressure_saturation_models(
-              std::move(capillary_pressure_saturation_models)),
-          _material_ids(std::move(material_ids))
-    {
-    }
-
-    PorousMediaProperties(PorousMediaProperties&& other)
-        : _capillary_pressure_saturation_models(
-              std::move(other._capillary_pressure_saturation_models)),
-          _material_ids(other._material_ids)
-    {
-    }
-
-    MaterialLib::PorousMedium::CapillaryPressureSaturation const&
-    getCapillaryPressureSaturationModel(
-        double t, ParameterLib::SpatialPosition const& pos) const;
-
-private:
-    int getMaterialID(ParameterLib::SpatialPosition const& pos) const;
-
-private:
-    std::vector<
-        std::unique_ptr<MaterialLib::PorousMedium::CapillaryPressureSaturation>>
-        _capillary_pressure_saturation_models;
-    std::vector<int> _material_ids;
-};
-
-}  // namespace RichardsComponentTransport
-}  // namespace ProcessLib