Since July 2014 and in cooperation with Baugrundinstitut Dipl. Ing. Knierim GmbH, IWR GmbH has been providing technical supervision for the sewage boards of Antrifttal and Kirtorf. First measures taken were the thorough cleaning of a pump station, the concluding of electricity supply contracts, the acquisition of farm land for sewage sludge disposal, the overhaul of a screw pump station, and the inspection of the throttling devices of both sewage boards. Further steps include the development of an investment plan, the continuation of the high occupational safety standards and the preparation of a long-term waste disposal concept.