This department is rated as one of the most outstanding water and sewage projects . He is managed by professional engineering and technical expertise to manage and implement large and complex projects for the public and private sectors, due to his abilities and ability to provide comprehensive solutions and implement various and large projects in all fields of purification, water networks, sewage networks and systems – Implementation of infrastructure works for water and sewerage networks, irrigation and rainwater drainage networks, in addition to their operation and maintenance, whether in plans developed for the private sector or government agencies. The department also establishes strategic water tanks, stations and all mechanical works related to these projects, and the department approves the executive plans from the concerned authorities, approves the materials, provides samples and examines them if necessary with the competent government supervision authority, and the work of implementing water and sewage networks and water transmission lines can be summarized in the following points: – Strengthening of water and sewage networks and water transmission lines – Replacement of water and sewage networks and water transmission lines. – Implementation of all the main networks concerned with feeding water stations and connecting sewage networks to government estuaries. – Implementation of all works related to the discharge of household water on existing sewage lines.• – Connecting wells with water carrier lines to feed desalination plants with their stock and all that entails. – Implementation of water tanker lines with large diameters and all its accessories.