The Public Works Authority “Ashghal” has announced the completion of the main works for Phase 1 of the Seasonal Lakes for Treated Sewage Effluent (TSE) Storage Project, as part of its ongoing efforts to promote environmental sustainability and optimize the use of recycled and renewable water resources, in line with the Qatar National Vision 2030.

Eng. Waleed Al Ghol, Project Engineer at Ashghal’s Drainage Networks Projects Department, explained that the first phase included the construction of five massive reservoirs with a total capacity of 22.5 million cubic meters, in addition to an evaporation lake with a capacity of 8.7 million cubic meters, supplied with treated water from the South Doha TSE Plant via the main pumping line (D-Line).

He noted that the project aims to balance TSE consumption throughout the year by storing excess water during the winter season for reuse in summer, when demand rises for irrigating green spaces, public parks, and farms, as well as for cooling systems and dust control at work sites.

Eng. Al Ghol emphasized Ashghal’s commitment to sustainable construction practices, highlighting the reuse of over 8 million cubic meters of recycled excavation materials in building the storage reservoirs, reducing waste and preserving resources. The project also contributes to creating a natural habitat that attracts migratory birds such as the pink flamingo and plover.

The works also included the construction of a 6-kilometer access road, an internal road network of 25 kilometers, and 8 kilometers of water transmission pipelines with associated hydraulic components. In addition, eight operational and maintenance buildings, including electrical substations, were completed.

Ashghal achieved 10 million man-hours without injuries during the implementation of Phase 1, which involved deep excavation works reaching up to 10 meters below ground level, thanks to its strict adherence to the highest safety and occupational health standards.