Work site : Diyala province. Employer : Ministry of Municipalities and Public Works – the General Directorate of sewerage. the Implementer : Al-Ezaa General Contracting Co. ltd (main contractor) cost of the project: 122.400.000.000 Iraqi Dinars. Cost of import materials: 40.000.000.000 Iraqi dinars. Network length: 225 Km trearment plant capacity: 56.000 cube meters / hour Duration of Contract: 3 years