News List One million and 200 thousands Euros saved in the south Tehran Wastewater Treatment Plant Monitoring COVID 19 virus in sewage and wastewater in Tehran province Location of the Third Emergency Water Tank Reconstruction and Improvement of the Wastewater Network on Aghajanloo Street Installation and Operation of Emergency Water Tank Operation and Installation of Three-Way Line Valves on Anbar Gandum Street CEO Visiting the Water and Wastewater Areas Unexpectedly fg fgfgh test test f f