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Sewage treatment plants in Saudi Arabia run from city-scale independent plants of 90,000 to 200,000 cubic metres a day to packaged units for camps, schools and compounds. This page lists Saudi suppliers and explains plant sizes, approvals, climate design, aeration and pumps, sludge drying at Riyadh and what drives price and lead time.
The water and environmental services sector in Khobar is driven by utility programmes more than by private plants, so tenders from the water company and its contractors set the pace for suppliers.
Khobar is served by the National Water Company's Eastern Cluster. In August 2024 NWC said it had begun 17 projects in the Eastern Province worth more than SAR 2.2 billion, including an expansion of the Al Khobar sewage treatment plant at over SAR 849 million. A separate SAR 101.3 million, three year contract for operating and maintaining water and wastewater networks at Al Khobar was disclosed by the private operator that won it. Those are the jobs behind local demand for sewage treatment plants, pumping stations, pipeline materials and water meters.
Commercial towers, hotels, hospitals and industrial users need water treatment, reverse osmosis systems, grease traps and waste management services. Large desalination plants and plant effluent work is more typical at Jubail and along the coast. The sector page is water and environmental services.
Treated effluent discharge and industrial waste are regulated in Saudi Arabia, so ask the supplier which environmental permit the system supports and who handles the application. Check the National Water Company's connection requirements for new buildings and the Khobar municipality's rules for grease traps and waste collection. Ask for membrane and pump spare parts availability in the Eastern Province, since the Gulf's hot, saline water can shorten the life of unprotected parts. Compare designs on one set of flow, quality and discharge figures with post a requirement.
Where a project is tied to a public tender, check that your product certificates and local content declarations match the tender documents.
Khobar is the commercial and residential core of the Dammam metropolitan area, so most of its business is offices, trading, hospitality, healthcare and services rather than heavy plant. The 2022 census counted 409,549 people in the city and 658,550 in the governorate, and the city sits between Dammam and Dhahran, the headquarters of Saudi Aramco, about twenty minutes from each. Its streets follow a grid, with older markets around Suwaiket Street and shopping malls elsewhere. The two universities nearby, King Fahd University of Petroleum and Minerals and Prince Mohammad bin Fahd University, add engineering and research demand.
Factories are a short drive away. Dammam First Industrial City is reported to hold 124 factories, and Dammam Second Industrial City spreads over about 6,000 acres along Highway 615 with some 120 operating plants and more under construction. The Dhahran to Jubail Expressway leads north to Jubail Industrial City for large petrochemical and heavy industry. Khobar buyers usually order from the estates and have goods delivered into town.
Khobar once served as Aramco's early port, but commercial shipping later moved to King Abdulaziz Port in Dammam, which handled about 2.04 million TEU of capacity in 2022, and petroleum exports moved to Ras Tanura. A new waterfront port is described as under construction south of the South Corniche. King Fahd International Airport is roughly 50 km away, reached by the Khobar to Dammam Highway (605). The nearest railway station is in Dammam, on a 449 km line through Abqaiq and Hofuf to Riyadh.
The King Fahd Causeway to Bahrain opened on 25 November 1986 and is about 25 km long. After works completed in June 2020 it reopened for commercial transit traffic, with new gates on the Saudi side. Rules for trucks change, so ask your forwarder for the current customs procedure before you plan a Bahrain leg.
Building and municipal matters fall under Al-Khobar Municipality, one of five municipalities in the Eastern Province Amana, which is headquartered in Dammam and reports to the Ministry of Municipalities and Housing. Factory land and ready units in the industrial cities come through MODON. Private hospitals work with the Ministry of Health, and fire and life safety approvals come from Civil Defense. Customs clearance is handled by ZATCA at the port or border. Check each authority's own platform for the current steps.
Oil and gas contractors and engineering firms keep offices here to be near Aramco. Hospitals, malls, hotels and towers need cooling, security, cleaning and maintenance. The governorate reports eight hospitals with 2,809 beds, and private hospital capacity has kept growing, so medical supply is a steady buyer.
