In recent years, due to the increasing rate of population growth and increasing water demand on the one hand and uncontrolled abstraction of groundwater resources, reduced rainfall and drought as well as environmental pollutants on the other hand, caused a significant reduction in water resources Surface and underground. Water consumption management in urban, industrial and agricultural sectors and reuse of treated wastewater for non-domestic and industrial use are solutions to the crisis in the water industry. Sazab Pardazan Consulting Engineers Company since 1989 to provide engineering services in the field of studies, design and supervision of network and urban, rural, industrial water and wastewater treatment plants, research and review of modern and practical methods of environmental protection, recycling and reuse It has dealt with the effluent of wastewater treatment plants in the country's development plans and projects. The company, using expert forces in various fields of water and wastewater sciences and being equipped with the latest specialized software in a coherent and interconnected network, in the field of design and monitoring the implementation of projects as follows in more than 100 major cities And little has tried: Feasibility studies, studies and plans for collection lines, water intake facilities, water collection and transmission, water distribution networks, pump tanks and water treatment plants and desalination and related buildings and physical leakage calculations and network leakage calculations Municipal water, water collection and transmission, water distribution networks, pump tanks and water treatment plants and desalination and related buildings and physical leakage calculations and leakage of urban water networks, collection and transfer of municipal and industrial wastewater and treatment Relevant houses, collection and transfer of surface water, design of maintenance systems and program repairs and telemetry and remote control systems, Scada, above facilities and equipment and use of treated wastewater