Saudi Arabia’s National Water Company (NWC) awarded local contractor Al-Yamama Package 12 of its long-term operations and maintenance sewage treatment programme, covering seven plants with a combined capacity of about 162,000 cubic metres a day, according to a MEED report published on 31 October 2026. MEED Al-Yamama reportedly offered a levelised tariff of SR0.98 a cubic metre for the project. MEED
Key takeaways
- Al-Yamama won the contract for Package 12, known as the North Western B Cluster, of Saudi Arabia’s long-term operations and maintenance sewage treatment programme. MEED
- The award covers construction and upgrades to seven sewage treatment plants with a combined capacity of about 162,000 cubic metres a day. MEED
- Al-Yamama offered a levelised tariff of SR0.98 a cubic metre. MEED
- The contract is Al-Yamama’s first award under the long-term operations and maintenance programme. MEED
Al-Yamama wins the North Western B Cluster package
Al-Yamama won Package 12, also known as LTOM12, after the tender was issued the previous year and bids were submitted in November 2025. MEED MEED reported in February that five bidders were awaiting an award decision, and NWC later opened the financial bids in April. MEED
The original scope covers the construction and upgrading of seven sewage treatment plants with a combined capacity of about 162,000 cubic metres a day, with Al-Yamama reportedly offering a levelised tariff of SR0.98 a cubic metre. MEED The award represents Al-Yamama’s first under the programme, although the contractor has previously worked with NWC on water infrastructure projects and is continuing construction work on a treatment plant expansion in Al-Khobar in the Eastern Province. MEED
Programme status and remaining tenders
NWC is delivering the sewage treatment plant rehabilitation programme in two phases comprising up to 19 packages. MEED Contracts worth $2.7bn were previously awarded for the first phase, which covers nine packages treating 4.6 million cubic metres a day of sewage water for the next 15 years. MEED
Two packages remained out for tender when MEED published its report on 31 October 2026. MEED Package 14 covers upgrades to six existing sewage treatment plants and a 30,000-cubic-metre-a-day capacity expansion at the Al-Jarodia plant, lifting total treatment capacity from about 263,000 to approximately 293,000 cubic metres a day at an estimated cost of $180m; its latest bid deadline is 30 November. MEED Bids for Package 16 are due by 3 May 2027, with an original scope covering rehabilitation and upgrades to 14 plants with a total design capacity of 153,000 cubic metres a day. MEED
Specification read
The reported Package 12 scale is 162,000 cubic metres a day, equivalent to 162 MLD, across seven plants; the source does not report population equivalent, influent BOD or COD, or individual plant capacities. MEED For procurement planning, a conventional sewage-treatment train would move from screening and primary treatment through biological treatment—such as A2O, MBR, MBBR, SBR or UASB—before tertiary treatment and disinfection, while DAF or ZLD would be relevant where the required solids or water-recovery performance warrants them. MEED
This award bears on plant construction and rehabilitation rather than a single confirmed process technology, because the source does not identify the treatment train selected for any of the seven plants. MEED If your plant looks like a multi-plant rehabilitation at about 162,000 m³/day of combined flow, with municipal sewage, rising reuse or discharge-compliance pressure, and unspecified BOD/COD characteristics, this award means the next enquiry must allocate flow and contaminant loads by site before comparing biological-process options and establishing the required treatment capacity.
Buyers can review our municipal wastewater treatment solutions and integrated sewage treatment systems while defining those site-specific requirements.
FAQ
What capacity is included in Saudi Arabia’s Package 12 sewage award?
Package 12 covers the construction and upgrade of seven sewage treatment plants with a combined capacity of about 162,000 cubic metres a day, or 162 MLD. MEED The source does not report the capacity assigned to each plant or provide a population-equivalent figure, so buyers need site-level flow and contaminant data to allocate equipment or prepare subpackage pricing. MEED
What tariff was offered for the Package 12 sewage treatment contract?
Al-Yamama reportedly offered a levelised tariff of SR0.98 a cubic metre for Package 12. MEED This is the reported tariff for the awarded work; the source does not provide the contract value, payment schedule, operating-cost breakdown or term for Package 12, so those inputs are still needed for an initial commercial comparison. MEED
How should a supplier compare biological treatment options for this scope?
A supplier comparison should begin with flow by plant, influent BOD and COD, required effluent standards and the available footprint. MEED The source confirms rehabilitation and new construction across seven plants but does not identify their individual capacities, process trains, lead times or site-specific performance requirements. MEED
Which further Saudi sewage packages were still being tendered on 31 October 2026?
Two packages remained out for tender: Package 14, covering six plant upgrades and a 30,000-cubic-metre-a-day expansion at Al-Jarodia, and Package 16, covering rehabilitation and upgrades to 14 plants with a total design capacity of 153,000 cubic metres a day. MEED Package 14 had a bid deadline of 30 November, while Package 16 bids were due by 3 May 2027. MEED
