Saudi Water Partnership Company (SWPC) has announced that steady progress is being made on the Al Haer Independent Sewage Treatment Plant (ISTP), being set up at an investment of SAR1.8 billion ($480 million), in capital Riyadh.

The project is being developed by a consortium led by Belgian group Besix, one of the world's leading international contractors, along with major Saudi utility groups Miahona and Marafiq.

The scope of work includes development and finance as well as provision of engineering, procurement, construction and implementation services in addition to ownership, operation, maintenance and transfer of the sewage plant under aa 25-year agreement.

On completion, the Al Haer ISTP will have a treatment capacity of 200,000 cu m per day, complemented by a 32 km integrated treated sewage transmission system capable of transporting up to 400,000 cu m daily, said SWPC in a statement. 

Additionally, a pumping station and storage tanks with a capacity of 200,000 cu m/day will be constructed to enhance the efficient and sustainable utilization of treated sewage across various sectors. 

According to SWPC, the project is being executed under the build, own, operate, and transfer (BOOT) model, ensuring long-term operational efficiency and service continuity.

It marks a significant milestone in advancing Saudi Arabia’s environmental sustainability objectives and improving quality of life. 

With the work in full swing, the project is on track for commercial operations in the fourth quarter of 2026.-TradeArabia News Service